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Cover Page - shares	3 Months Ended
Cover Page - shares	Mar. 31, 2020	May 04, 2020
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2020
Document Transition Report	false
Entity File Number	001-02960
Entity Registrant Name	Newpark Resources, Inc.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	72-1123385
Entity Address, Address Line One	9320 Lakeside Boulevard,
Entity Address, Address Line Two	Suite 100
Entity Address, City or Town	The Woodlands,
Entity Address, State or Province	TX
Entity Address, Postal Zip Code	77381
City Area Code	281
Local Phone Number	362-6800
Title of 12(b) Security	Common Stock, $0.01 par value
Trading Symbol	NR
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		89,899,053
Entity Central Index Key	0000071829
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q1
Amendment Flag	false

Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
ASSETS
Cash and cash equivalents	$ 49,064	$ 48,672
Receivables, net	197,440	216,714
Inventories	187,979	196,897
Prepaid expenses and other current assets	16,241	16,526
Total current assets	450,724	478,809
Property, plant and equipment, net	305,732	310,409
Operating lease assets	32,049	32,009
Goodwill	42,108	42,332
Other intangible assets, net	28,032	29,677
Deferred tax assets	5,077	3,600
Other assets	3,110	3,243
Total assets	866,832	900,079
LIABILITIES AND STOCKHOLDERS’ EQUITY
Current debt	6,981	6,335
Accounts payable	69,940	79,777
Accrued liabilities	36,335	42,750
Total current liabilities	113,256	128,862
Long-term debt, less current portion	155,965	153,538
Noncurrent operating lease liabilities	26,546	26,946
Deferred tax liabilities	32,614	34,247
Other noncurrent liabilities	8,092	7,841
Total liabilities	336,473	351,434
Commitments and contingencies (Note 8)
Common stock, $0.01 par value (200,000,000 shares authorized and 106,696,719 and 106,696,719 shares issued, respectively)	1,067	1,067
Paid-in capital	622,115	620,626
Accumulated other comprehensive loss	(75,440)	(67,947)
Retained earnings	120,501	134,119
Treasury stock, at cost (16,797,666 and 16,958,418 shares, respectively)	(137,884)	(139,220)
Total stockholders’ equity	530,359	548,645
Total liabilities and stockholders’ equity	$ 866,832	$ 900,079

Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) - $ / shares	Mar. 31, 2020	Dec. 31, 2019
Statement of Financial Position [Abstract]
Common stock par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	200,000,000	200,000,000
Common stock, shares issued (in shares)	106,696,719	106,696,719
Treasury stock, shares (in shares)	16,797,666	16,958,418

Condensed Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Income Statement [Abstract]
Revenues	$ 164,550	$ 211,473
Cost of revenues	146,084	174,976
Selling, general and administrative expenses	24,696	30,742
Other operating (income) loss, net	(344)	76
Operating income (loss)	(5,886)	5,679
Foreign currency exchange (gain) loss	1,982	(1,062)
Interest expense, net	3,201	3,656
Loss on extinguishment of debt	915	0
Income (loss) before income taxes	(11,984)	3,085
Provision for income taxes	164	1,803
Net income (loss)	$ (12,148)	$ 1,282
Net income (loss) per common share - basic (in dollars per share)	$ (0.14)	$ 0.01
Net income (loss) per common share - diluted (in dollars per share)	$ (0.14)	$ 0.01

Condensed Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ (12,148)	$ 1,282
Foreign currency translation adjustments (net of tax benefit of $272 and $70)	(7,493)	(1,921)
Comprehensive loss	$ (19,641)	$ (639)

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References + Details

Condensed Consolidated Statements of Comprehensive Income (Loss) (Unaudited) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Statement of Comprehensive Income [Abstract]
Foreign currency translation adjustments, tax benefit	$ 272	$ 70

Condensed Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Total	Common Stock	Paid-In Capital	Accumulated Other Comprehensive Loss	Retained Earnings	Treasury Stock
Beginning balance at Dec. 31, 2018	$ 569,681	$ 1,064	$ 617,276	$ (67,673)	$ 148,802	$ (129,788)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	1,282				1,282
Employee stock options, restricted stock and employee stock purchase plan	790		309			481
Stock-based compensation expense	4,969		4,969
Treasury shares purchased at cost	(5,013)					(5,013)
Foreign currency translation, net of tax	(1,921)			(1,921)
Ending balance at Mar. 31, 2019	569,788	1,064	622,554	(69,594)	150,084	(134,320)
Beginning balance at Dec. 31, 2019	548,645	1,067	620,626	(67,947)	134,119	(139,220)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(12,148)				(12,148)
Employee stock options, restricted stock and employee stock purchase plan	498		(103)		(735)	1,336
Stock-based compensation expense	1,592		1,592
Foreign currency translation, net of tax	(7,493)			(7,493)
Ending balance at Mar. 31, 2020	$ 530,359	$ 1,067	$ 622,115	$ (75,440)	$ 120,501	$ (137,884)

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References + Details

Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Cash flows from operating activities:
Net income (loss)	$ (12,148)	$ 1,282
Adjustments to reconcile net income (loss) to net cash provided by operations:
Depreciation and amortization	11,453	11,438
Stock-based compensation expense	1,592	4,969
Provision for deferred income taxes	(2,801)	(438)
Credit loss expense	20	386
Gain on sale of assets	(1,033)	(2,339)
Loss on extinguishment of debt	915	0
Amortization of original issue discount and debt issuance costs	1,573	1,481
Change in assets and liabilities:
Decrease in receivables	10,652	5,300
Decrease in inventories	5,466	10,139
Increase in other assets	(644)	(273)
Decrease in accounts payable	(9,842)	(15,149)
Decrease in accrued liabilities and other	(815)	(14,527)
Net cash provided by operating activities	4,388	2,269
Cash flows from investing activities:
Capital expenditures	(6,649)	(17,467)
Proceeds from sale of property, plant and equipment	3,673	1,771
Net cash used in investing activities	(2,976)	(15,696)
Cash flows from financing activities:
Borrowings on lines of credit	74,909	80,656
Payments on lines of credit	(58,948)	(61,524)
Repayments of Convertible Debt	(13,775)	0
Debt issuance costs	0	(927)
Proceeds from employee stock plans	0	330
Purchases of treasury stock	(32)	(5,013)
Other financing activities	(1,218)	(1,169)
Net cash provided by financing activities	936	12,353
Effect of exchange rate changes on cash	(2,576)	(581)
Net decrease in cash, cash equivalents, and restricted cash	(228)	(1,655)
Cash, cash equivalents, and restricted cash at beginning of period	56,863	64,266
Cash, cash equivalents, and restricted cash at end of period	$ 56,635	$ 62,611

Basis of Presentation and Significant Accounting Policies

3 Months Ended

Mar. 31, 2020

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Basis of Presentation and Significant Accounting Policies

The accompanying unaudited condensed consolidated financial statements of Newpark Resources, Inc. and our wholly-owned subsidiaries, which we collectively refer to as “we,” “our,” or “us,” have been prepared in accordance with Rule 10-01 of Regulation S-X for interim financial statements required to be filed with the Securities and Exchange Commission (“SEC”), and do not include all information and footnotes required by the accounting principles generally accepted in the United States (“U.S. GAAP”) for complete financial statements. These unaudited condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and notes thereto included in our Annual Report on Form 10-K for the year ended December 31, 2019. Our fiscal year end is December 31 and our first quarter represents the three-month period ended March 31. The results of operations for the first quarter of 2020 are not necessarily indicative of the results to be expected for the entire year. Unless otherwise noted, all currency amounts are stated in U.S. dollars.

In the opinion of management, the accompanying unaudited condensed consolidated financial statements reflect all adjustments necessary to present fairly our financial position as of March 31, 2020 and our results of operations and cash flows for the first quarter of 2020 and 2019. All adjustments are of a normal recurring nature. Our balance sheet at December 31, 2019 is derived from the audited consolidated financial statements at that date.

The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. For further information, see Note 1 in our Annual Report on Form 10-K for the year ended December 31, 2019.

New Accounting Pronouncements

Standards Adopted in 2020

Credit Losses. In 2016, the Financial Accounting Standards Board (“FASB”) issued new guidance which requires financial assets measured at amortized cost basis, including trade receivables, to be presented at the net amount expected to be collected. The new guidance requires an entity to estimate its lifetime “expected credit loss” for such assets at inception, which will generally result in the earlier recognition of allowances for losses. Under previous guidance, reserves for uncollectible accounts receivable were determined on a specific identification basis when we believed that the required payment of specific amounts owed to us was not probable. Under the new guidance, our allowance for credit losses reflects losses that are expected over the contractual life of the asset, and takes into account historical loss experience, current and future economic conditions, and reasonable and supportable forecasts.

We adopted this new guidance as of January 1, 2020 using the modified retrospective transition method, and recorded a net reduction of $0.7 million to opening retained earnings to reflect the cumulative effect of adoption. Results for reporting periods beginning after December 31, 2019 are presented under the new guidance, while prior period amounts were not adjusted and continue to be reported in accordance with previous guidance. See Note 4 for additional required disclosures.

The cumulative effect of the changes made to our consolidated balance sheet for the adoption of the new accounting guidance for credit losses were as follows:


(In thousands)	Balance at December 31, 2019		Impact of Adoption of New Credit Losses Guidance		Balance at January 1, 2020
Receivables, net	$	216,714	$	(959)	$	215,755
Deferred tax assets	3,600		59		3,659
Deferred tax liabilities	34,247		(165)		34,082
Retained earnings	134,119		(735)		133,384

Standards Not Yet Adopted

Income Taxes: Simplifying the Accounting for Income Taxes. In December 2019, the FASB issued new guidance which is intended to simplify various aspects related to accounting for income taxes. This guidance is effective for us in the first quarter of 2021 with early adoption permitted. We are currently evaluating the impact of the new guidance on our consolidated financial statements and related disclosures.

Earnings Per Share

3 Months Ended

Mar. 31, 2020

Earnings Per Share [Abstract]

Earnings Per Share

The following table presents the reconciliation of the numerator and denominator for calculating net income (loss) per share:


	First Quarter
(In thousands, except per share data)	2020		2019
Numerator
Net income (loss) - basic and diluted	$	(12,148)	$	1,282

Denominator
Weighted average common shares outstanding - basic	89,645		90,111
Dilutive effect of stock options and restricted stock awards	—		2,267
Dilutive effect of Convertible Notes	—		—
Weighted average common shares outstanding - diluted	89,645		92,378

Net income (loss) per common share
Basic	$	(0.14)	$	0.01
Diluted	$	(0.14)	$	0.01

We excluded the following weighted-average potential shares from the calculations of diluted net income (loss) per share during the applicable periods because their inclusion would have been anti-dilutive:


	First Quarter
(In thousands)	2020	2019
Stock options and restricted stock awards	4,835	1,712

For the first quarter of 2020, we excluded all potentially dilutive stock options and restricted stock awards in calculating diluted earnings per share as the effect was anti-dilutive due to the net loss incurred for this period. The Convertible Notes (as defined in Note 6) only impact the calculation of diluted net income per share in periods that the average price of our common stock, as calculated in accordance with the terms of the indenture governing the Convertible Notes, exceeds the conversion price of $9.33 per share. We have the option to pay cash, issue shares of common stock, or any combination thereof for the aggregate amount due upon conversion of the Convertible Notes as further described in Note 6. If converted, we currently intend to settle the principal amount of the notes in cash and as a result, only the amounts payable in excess of the principal amount of the notes, if any, would be assumed to be settled with shares of common stock for purposes of computing diluted net income per share.

Repurchase Program	3 Months Ended
Repurchase Program	Mar. 31, 2020
Equity [Abstract]
Repurchase Program	Repurchase Program Our securities repurchase program remains available for repurchases of any combination of our common stock and our Convertible Notes. The repurchase program has no specific term. Repurchases are expected to be funded from operating cash flows, available cash on hand, and borrowings under our ABL Facility (as defined in Note 6). As part of the share repurchase program, our management has been authorized to establish trading plans under Rule 10b5-1 of the Securities Exchange Act of 1934. As of March 31, 2020, we had $67.2 million remaining under the program. During the first quarter of 2020, we repurchased $14.5 million of our Convertible Notes in the open market under the repurchase program for a total cost of $13.8 million. There were no Convertible Notes repurchased under the program during 2019. There were no shares of common stock repurchased under the repurchase program during the first quarter of 2020. During the first quarter of 2019, we repurchased an aggregate of 655,666 shares of our common stock under the program for a total cost of $5.0 million.

Receivables

3 Months Ended

Mar. 31, 2020

Receivables [Abstract]

Receivables

Receivables consisted of the following:


(In thousands)	March 31, 2020		December 31, 2019
Trade receivables:
Gross trade receivables	$	188,576	$	207,554
Allowance for credit losses	(6,141)		(6,007)
Net trade receivables	182,435		201,547
Income tax receivables	6,263		7,393
Other receivables	8,742		7,774
Total receivables, net	$	197,440	$	216,714

Other receivables included $7.0 million and $6.2 million for value added, goods and service taxes related to foreign jurisdictions as of March 31, 2020 and December 31, 2019, respectively.

We adopted the new accounting guidance for credit losses as of January 1, 2020 (see Note 1 for additional information). To measure expected credit losses, we evaluate our receivables on a collective basis for assets that share similar risk characteristics. Our allowance for credit losses reflects losses that are expected over the contractual life of the asset, and takes into account historical loss experience, current and future economic conditions, and reasonable and supportable forecasts.

Changes in our allowance for credit losses were as follows:


	First Quarter
(In thousands)	2020		2019
Balance at beginning of period	$	6,007	$	10,034
Cumulative effect of accounting change	959		—
Credit loss expense	20		386
Write-offs, net of recoveries	(845)		(861)
Balance at end of period	$	6,141	$	9,559

Inventories

3 Months Ended

Mar. 31, 2020

Inventory Disclosure [Abstract]

Inventories

Inventories consisted of the following:


(In thousands)	March 31, 2020		December 31, 2019
Raw materials:
Fluids systems	$	124,623	$	141,314
Mats and integrated services	4,451		5,049
Total raw materials	129,074		146,363
Blended fluids systems components	40,892		39,542
Finished goods - mats	18,013		10,992
Total inventories	$	187,979	$	196,897

Raw materials for the Fluids Systems segment consists primarily of barite, chemicals, and other additives that are consumed in the production of our fluids systems. Raw materials for the Mats and Integrated Services segment consists primarily of resins, chemicals, and other materials used to manufacture composite mats, as well as materials that are consumed in providing spill containment and other services to our customers. Our blended fluids systems components consist of base fluid systems that have been either mixed internally at our blending facilities or purchased from third-party vendors. These base fluid systems require raw materials to be added, as needed to meet specified customer requirements.

Financing Arrangements and Fair Value of Financial Instruments

3 Months Ended

Mar. 31, 2020

Debt Disclosure [Abstract]

Financing Arrangements and Fair Value of Financial Instruments

Financing arrangements consisted of the following:


	March 31, 2020										December 31, 2019
(In thousands)	Principal Amount		Unamortized Discount and Debt Issuance Costs		Total Debt		Principal Amount		Unamortized Discount and Debt Issuance Costs		Total Debt
Convertible Notes	$	85,500	$	(9,261)	$	76,239	$	100,000	$	(12,291)	$	87,709
ABL Facility	79,000		—		79,000		65,000		—		65,000
Other debt	7,707		—		7,707		7,164		—		7,164
Total debt	172,207		(9,261)		162,946		172,164		(12,291)		159,873
Less: Current portion	(6,981)		—		(6,981)		(6,335)		—		(6,335)
Long-term debt	$	165,226	$	(9,261)	$	155,965	$	165,829	$	(12,291)	$	153,538

Convertible Notes. In December 2016, we issued $100.0 million of unsecured convertible senior notes (“Convertible Notes”) that mature on December 1, 2021, of which $85.5 million principal amount was outstanding at March 31, 2020. The notes bear interest at a rate of 4.0% per year, payable semiannually in arrears on June 1 and December 1 of each year.

Holders may convert the notes at their option at any time prior to the close of business on the business day immediately preceding June 1, 2021, only under the following circumstances:

•during any calendar quarter (and only during such calendar quarter) if the last reported sale price of our common stock for at least 20 trading days (regardless of whether consecutive) during a period of 30 consecutive trading days ending on the last trading day of the immediately preceding calendar quarter is greater than or equal to 130% of the conversion price of the notes in effect on each applicable trading day;

•during the five business day period after any five consecutive trading day period in which the trading price per $1,000 principal amount of notes for each trading day was less than 98% of the last reported sale price of our common stock on such date multiplied by the conversion rate on each such trading day; or

•upon the occurrence of specified corporate events, as described in the indenture governing the notes, such as a consolidation, merger, or share exchange.

On or after June 1, 2021 until the close of business on the business day immediately preceding the maturity date, holders may convert their notes at any time, regardless of whether any of the foregoing conditions have been satisfied. As of May 4, 2020, the notes were not convertible.

The notes are convertible into, at our election, cash, shares of common stock, or a combination of both, subject to satisfaction of specified conditions and during specified periods, as described above. If converted, we currently intend to pay cash for the principal amount of the notes converted. The conversion rate is 107.1381 shares of our common stock per $1,000 principal amount of notes (equivalent to an initial conversion price of $9.33 per share of common stock), subject to adjustment in certain circumstances. We may not redeem the notes prior to their maturity date.

In accordance with accounting guidance for convertible debt with a cash conversion option, we separately accounted for the debt and equity components of the notes in a manner that reflected our estimated nonconvertible debt borrowing rate. As of March 31, 2020, the carrying amount of the debt component was $76.2 million, which is net of the unamortized debt discount and debt issuance costs of $9.3 million. Including the impact of the unamortized debt discount and debt issuance costs, the effective interest rate on the notes is approximately 11.3%.

During the first quarter of 2020, we repurchased $14.5 million of our Convertible Notes in the open market for a total cost of $13.8 million, and recognized a net loss of $0.9 million reflecting the difference in the amount paid and the net carrying value of the extinguished debt, including original issue discount and debt issuance costs.

Asset-Based Loan Facility. In May 2016, we entered into an asset-based revolving credit agreement which replaced our previous credit agreement. In October 2017, we entered into an Amended and Restated Credit Agreement and in March 2019, we entered into a First Amendment to Amended and Restated Credit Agreement (as amended, the “ABL Facility”). The ABL Facility provides financing of up to $200.0 million available for borrowings (inclusive of letters of credit) and can be increased up to a maximum capacity of $275.0 million, subject to certain conditions. As of March 31, 2020, our total availability under the ABL Facility was $151.0 million, of which $79.0 million was drawn, resulting in remaining availability of $72.0 million.

The ABL Facility terminates in March 2024; however, the ABL Facility has a springing maturity date that will accelerate the maturity of the ABL Facility to September 1, 2021 if, prior to such date, the Convertible Notes have not been repurchased, redeemed, refinanced, exchanged or otherwise satisfied in full or we have not escrowed an amount of funds, that together with the amount that we establish as a reserve against our borrowing capacity, is sufficient for the future settlement of the Convertible Notes at their maturity. The ABL Facility requires compliance with a minimum fixed charge coverage ratio and minimum unused availability of $25.0 million to utilize borrowings or assignment of availability under the ABL Facility towards funding the repayment of the Convertible Notes.

Borrowing availability under the ABL Facility is calculated based on eligible accounts receivable, inventory, and, subject to satisfaction of certain financial covenants as described below, composite mats included in the rental fleet, net of reserves and limits on such assets included in the borrowing base calculation. To the extent pledged by us, the borrowing base calculation also includes the amount of eligible pledged cash. The lender may establish such reserves, in part based on appraisals of the asset base, and other limits at its discretion which could reduce the amounts otherwise available under the ABL Facility. Availability associated with eligible rental mats will also be subject to maintaining a minimum consolidated fixed charge coverage ratio and a minimum level of operating income for the Mats and Integrated Services segment.

Under the terms of the ABL Facility, we may elect to borrow at a variable interest rate based on either, (1) LIBOR subject to a floor of zero or (2) a base rate equal to the highest of: (a) the federal funds rate plus 50 basis points, (b) the prime rate of Bank of America, N.A. and (c) LIBOR, subject to a floor of zero, plus 100 basis points, plus, in each case, an applicable margin per annum. The applicable margin ranges from 150 to 200 basis points for LIBOR borrowings, and 50 to 100 basis points for base rate borrowings, based on the consolidated fixed charge coverage ratio as defined in the ABL Facility. As of March 31, 2020, the applicable margin for borrowings under our ABL Facility was 150 basis points with respect to LIBOR borrowings and 50 basis points with respect to base rate borrowings. The weighted average interest rate for the ABL Facility was 2.4% at March 31, 2020. In addition, we are required to pay a commitment fee on the unused portion of the ABL Facility ranging from 25 to 37.5 basis points, based on the level of outstanding borrowings, as defined in the ABL Facility. As of March 31, 2020, the applicable commitment fee was 37.5 basis points.

The ABL Facility is a senior secured obligation, secured by first liens on all of our U.S. tangible and intangible assets, and a portion of the capital stock of our non-U.S. subsidiaries has also been pledged as collateral. The ABL Facility contains customary operating covenants and certain restrictions including, among other things, the incurrence of additional debt, liens, dividends, asset sales, investments, mergers, acquisitions, affiliate transactions, stock repurchases and other restricted payments. The ABL Facility also requires compliance with a fixed charge coverage ratio if availability under the ABL Facility falls below $22.5 million. In addition, the ABL Facility contains customary events of default, including, without limitation, a failure to make payments under the facility, acceleration of more than $25.0 million of other indebtedness, certain bankruptcy events, and certain change of control events.

Other Debt. Certain of our foreign subsidiaries maintain local credit arrangements consisting primarily of lines of credit or overdraft facilities which are generally renewed on an annual basis. We utilize local financing arrangements in our foreign operations in order to provide short-term local liquidity needs. We had $6.7 million and $4.8 million outstanding under these arrangements at March 31, 2020 and December 31, 2019, respectively.

In addition, at March 31, 2020, we had $49.8 million in outstanding letters of credit, performance bonds, and other guarantees for which certain of the letters of credit are collateralized by $7.6 million in restricted cash.

Our financial instruments include cash and cash equivalents, receivables, payables, and debt. We believe the carrying values of these instruments, with the exception of our Convertible Notes, approximated their fair values at March 31, 2020 and December 31, 2019. The estimated fair value of our Convertible Notes was $63.8 million at March 31, 2020 and $101.4 million at December 31, 2019, based on quoted market prices at these respective dates.

Income Taxes	3 Months Ended
Income Taxes	Mar. 31, 2020
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The provision for income taxes was $0.2 million for the first quarter of 2020 despite reporting a pretax loss. This result primarily reflects the impact of the geographic composition of our pretax loss, where the tax benefit from losses in the U.S was more than offset by the tax expense related to earnings from our international operations. The provision for income taxes was $1.8 million for the first quarter of 2019, reflecting an effective tax rate of 58%. The 2019 effective tax rate was negatively impacted by $0.7 million of discrete tax adjustments relative to the amount of pre-tax income. The Coronavirus Aid, Relief, and Economic Security Act (“CARES Act”) was enacted on March 27, 2020 in the United States. The CARES Act contains several tax provisions, including but not limited to additional carryback opportunities for net operating losses, temporary increases in the interest deductibility threshold, and the acceleration of refunds for any remaining alternative minimum tax (“AMT”) carryforwards. While there was no material impact from the CARES Act in our provision for income taxes for the first quarter of 2020, we are continuing to evaluate the provisions of the CARES Act and currently anticipate filing an amendment to our 2018 U.S. federal income tax return in the second quarter of 2020 to accelerate the refund of $0.7 million of AMT carryforwards. The CARES Act also permits most companies to defer paying their portion of certain applicable payroll taxes from the date the CARES Act was signed into law through December 31, 2020. The deferred amount will be due in two equal installments on December 31, 2021 and December 31, 2022. While we anticipate deferrals of applicable payroll taxes through December 31, 2020, there were no deferrals at March 31, 2020.

Commitments and Contingencies	3 Months Ended
Commitments and Contingencies	Mar. 31, 2020
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies In the ordinary course of conducting our business, we become involved in litigation and other claims from private party actions, as well as judicial and administrative proceedings involving governmental authorities at the federal, state, and local levels. While the outcome of litigation or other proceedings against us cannot be predicted with certainty, management does not expect that any loss resulting from such litigation or other proceedings, in excess of any amounts accrued or covered by insurance, will have a material adverse impact on our consolidated financial statements. Kenedy, Texas Drilling Fluids Facility Fire In July 2018, a fire occurred at our Kenedy, Texas drilling fluids facility, destroying the distribution warehouse, including inventory and surrounding equipment. In addition, nearby residences and businesses were evacuated as part of the response to the fire. In order to avoid any customer service disruptions, we implemented contingency plans to supply products from alternate facilities in the area and region. Subsequently, we received petitions seeking payment for alleged bodily injuries, property damage, and punitive damages claimed to have been incurred as a result of the fire and the subsequent efforts we undertook to remediate any potential smoke damage. As of March 31, 2020, there are open claims remaining with four plaintiffs. We have been advised by our insurer that these claims are insured under our insurance programs. As of March 31, 2020, the claims related to the fire under our property, business interruption, and general liability insurance programs have not been finalized.

Supplemental Disclosures to the Statements of Cash Flows

3 Months Ended

Mar. 31, 2020

Supplemental Cash Flow Elements [Abstract]

Supplemental Disclosures to the Statements of Cash Flows

Supplemental disclosures to the statements of cash flows are presented below:


	First Quarter
(In thousands)	2020		2019
Cash paid for:
Income taxes (net of refunds)	$	1,888	$	3,868
Interest	$	991	$	1,514

Cash, cash equivalents, and restricted cash in the consolidated statements of cash flows consisted of the following:


(In thousands)	March 31, 2020		December 31, 2019
Cash and cash equivalents	$	49,064	$	48,672
Restricted cash (included in prepaid expenses and other current assets)	7,571		8,191
Cash, cash equivalents, and restricted cash	$	56,635	$	56,863

Segment Data

3 Months Ended

Mar. 31, 2020

Segment Reporting [Abstract]

Segment Data

Summarized operating results for our reportable segments are shown in the following table (net of inter-segment transfers):


	First Quarter
(In thousands)	2020		2019
Revenues
Fluids systems	$	132,805	$	160,653
Mats and integrated services	31,745		50,820
Total revenues	$	164,550	$	211,473

Operating income (loss)
Fluids systems	$	(2,268)	$	3,874
Mats and integrated services	3,062		13,538
Corporate office	(6,680)		(11,733)
Total operating income (loss)	$	(5,886)	$	5,679

The following table presents further disaggregated revenues for the Fluids Systems segment:


	First Quarter
(In thousands)	2020		2019
United States	$	73,660	$	103,059
Canada	13,260		13,266
Total North America	86,920		116,325

EMEA	42,137		37,765
Other	3,748		6,563
Total International	45,885		44,328

Total Fluids Systems revenues	$	132,805	$	160,653

The following table presents further disaggregated revenues for the Mats and Integrated Services segment:


	First Quarter
(In thousands)	2020		2019
Service revenues	$	14,101	$	21,150
Rental revenues	13,502		21,580
Product sales revenues	4,142		8,090
Total Mats and Integrated Services revenues	$	31,745	$	50,820

We recognized $1.4 million of charges for inventory write-downs and severance costs in the first quarter of 2020, with $1.2 million in the Fluids Systems segment and $0.2 million in the Corporate office. During March 2020, oil prices collapsed due to geopolitical events along with the worldwide effects of the COVID-19 pandemic. As of May 1, 2020, the U.S. active rig count was 408, reflecting a 48% decline from the first quarter 2020 average level, and is expected to continue to significantly decline in the coming months. In response to the deteriorating U.S. land oil and natural gas market, we initiated certain headcount reductions and other cost reduction programs late in the first quarter of 2020, and these actions have continued into the second quarter of 2020. As a result, we expect to recognize additional severance charges and certain facility exit costs in the second quarter of 2020; however, such amounts are not currently estimable.

We also made the decision in late 2019 to wind down our Brazil operations. At March 31, 2020, we had $11.6 million of accumulated translation losses related to our subsidiary in Brazil. As such, we will reclassify these losses and recognize a charge to income at such time when we have substantially liquidated our subsidiary in Brazil.

As of March 31, 2020, our consolidated balance sheet includes $42.1 million of goodwill, all of which relates to the Mats and Integrated Services segment. Goodwill and other indefinite-lived intangible assets are tested for impairment annually as of November 1, or more frequently, if indicators of impairment exists. In March 2020, primarily as a result of the collapse in oil prices and the expected declines in the U.S. land E&P markets, along with a significant decline in the quoted market prices of our common stock, we considered these developments to be a potential indicator of impairment that required us to complete an interim goodwill impairment evaluation. As such, in March 2020, we estimated the fair value of our Mats and Integrated Services reporting unit based on our current forecasts and expectations for market conditions and determined that even though the estimated fair value had decreased, the fair value remained substantially in excess of its net carrying value, and therefore, no impairment was required.

As of March 31, 2020, our consolidated balance sheet also includes $305.7 million of property, plant and equipment, net, and $27.5 million of finite-lived intangible assets, net, which combined includes $170.8 million in the Fluids Systems segment and $150.8 million in the Mats and Integrated Services segment. We review property, plant and equipment, finite-lived intangible assets and certain other assets for impairment whenever events or changes in circumstances indicate that the carrying amount may not be recoverable. We assess recoverability based on expected undiscounted future net cash flows. With the market uncertainty as discussed above, we completed an impairment review of such assets in March 2020, which indicated that the estimated undiscounted cash flows exceeded the carrying value, and therefore, no impairment was required.

Basis of Presentation and Significant Accounting Policies (Policies)

3 Months Ended

Mar. 31, 2020

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Use of Estimates

New Accounting Pronouncements and Standards Not Yet Adopted

New Accounting Pronouncements

Standards Adopted in 2020

The cumulative effect of the changes made to our consolidated balance sheet for the adoption of the new accounting guidance for credit losses were as follows:


(In thousands)	Balance at December 31, 2019		Impact of Adoption of New Credit Losses Guidance		Balance at January 1, 2020
Receivables, net	$	216,714	$	(959)	$	215,755
Deferred tax assets	3,600		59		3,659
Deferred tax liabilities	34,247		(165)		34,082
Retained earnings	134,119		(735)		133,384

Standards Not Yet Adopted

Basis of Presentation and Significant Accounting Policies (Tables)

3 Months Ended

Mar. 31, 2020

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Cumulative effect of the changes made to consolidated balance sheet for the adoption of new guidance

The cumulative effect of the changes made to our consolidated balance sheet for the adoption of the new accounting guidance for credit losses were as follows:


(In thousands)	Balance at December 31, 2019		Impact of Adoption of New Credit Losses Guidance		Balance at January 1, 2020
Receivables, net	$	216,714	$	(959)	$	215,755
Deferred tax assets	3,600		59		3,659
Deferred tax liabilities	34,247		(165)		34,082
Retained earnings	134,119		(735)		133,384

Earnings Per Share (Tables)

3 Months Ended

Mar. 31, 2020

Earnings Per Share [Abstract]

Schedule of net income per share

The following table presents the reconciliation of the numerator and denominator for calculating net income (loss) per share:


	First Quarter
(In thousands, except per share data)	2020		2019
Numerator
Net income (loss) - basic and diluted	$	(12,148)	$	1,282

Denominator
Weighted average common shares outstanding - basic	89,645		90,111
Dilutive effect of stock options and restricted stock awards	—		2,267
Dilutive effect of Convertible Notes	—		—
Weighted average common shares outstanding - diluted	89,645		92,378

Net income (loss) per common share
Basic	$	(0.14)	$	0.01
Diluted	$	(0.14)	$	0.01

Schedule of weighted-average potential shares excluded from diluted net income per share


	First Quarter
(In thousands)	2020	2019
Stock options and restricted stock awards	4,835	1,712

Receivables (Tables)

3 Months Ended

Mar. 31, 2020

Receivables [Abstract]

Schedule of receivables

Receivables consisted of the following:


(In thousands)	March 31, 2020		December 31, 2019
Trade receivables:
Gross trade receivables	$	188,576	$	207,554
Allowance for credit losses	(6,141)		(6,007)
Net trade receivables	182,435		201,547
Income tax receivables	6,263		7,393
Other receivables	8,742		7,774
Total receivables, net	$	197,440	$	216,714

Changes in allowance for credit losses

Changes in our allowance for credit losses were as follows:


	First Quarter
(In thousands)	2020		2019
Balance at beginning of period	$	6,007	$	10,034
Cumulative effect of accounting change	959		—
Credit loss expense	20		386
Write-offs, net of recoveries	(845)		(861)
Balance at end of period	$	6,141	$	9,559

Inventories (Tables)

3 Months Ended

Mar. 31, 2020

Inventory Disclosure [Abstract]

Schedule of inventories

Inventories consisted of the following:


(In thousands)	March 31, 2020		December 31, 2019
Raw materials:
Fluids systems	$	124,623	$	141,314
Mats and integrated services	4,451		5,049
Total raw materials	129,074		146,363
Blended fluids systems components	40,892		39,542
Finished goods - mats	18,013		10,992
Total inventories	$	187,979	$	196,897

Financing Arrangements and Fair Value of Financial Instruments (Tables)

3 Months Ended

Mar. 31, 2020

Debt Disclosure [Abstract]

Schedule of financing arrangements

Financing arrangements consisted of the following:


	March 31, 2020										December 31, 2019
(In thousands)	Principal Amount		Unamortized Discount and Debt Issuance Costs		Total Debt		Principal Amount		Unamortized Discount and Debt Issuance Costs		Total Debt
Convertible Notes	$	85,500	$	(9,261)	$	76,239	$	100,000	$	(12,291)	$	87,709
ABL Facility	79,000		—		79,000		65,000		—		65,000
Other debt	7,707		—		7,707		7,164		—		7,164
Total debt	172,207		(9,261)		162,946		172,164		(12,291)		159,873
Less: Current portion	(6,981)		—		(6,981)		(6,335)		—		(6,335)
Long-term debt	$	165,226	$	(9,261)	$	155,965	$	165,829	$	(12,291)	$	153,538

Supplemental Disclosures to the Statements of Cash Flows (Tables)

3 Months Ended

Mar. 31, 2020

Supplemental Cash Flow Elements [Abstract]

Schedule of supplemental disclosures of cash flows

Supplemental disclosures to the statements of cash flows are presented below:


	First Quarter
(In thousands)	2020		2019
Cash paid for:
Income taxes (net of refunds)	$	1,888	$	3,868
Interest	$	991	$	1,514

Cash, cash equivalents and restricted cash

Cash, cash equivalents, and restricted cash in the consolidated statements of cash flows consisted of the following:


(In thousands)	March 31, 2020		December 31, 2019
Cash and cash equivalents	$	49,064	$	48,672
Restricted cash (included in prepaid expenses and other current assets)	7,571		8,191
Cash, cash equivalents, and restricted cash	$	56,635	$	56,863

Segment Data (Tables)

3 Months Ended

Mar. 31, 2020

Segment Reporting [Abstract]

Schedule of operating results for reportable segments

Summarized operating results for our reportable segments are shown in the following table (net of inter-segment transfers):


	First Quarter
(In thousands)	2020		2019
Revenues
Fluids systems	$	132,805	$	160,653
Mats and integrated services	31,745		50,820
Total revenues	$	164,550	$	211,473

Operating income (loss)
Fluids systems	$	(2,268)	$	3,874
Mats and integrated services	3,062		13,538
Corporate office	(6,680)		(11,733)
Total operating income (loss)	$	(5,886)	$	5,679

Schedule of disaggregated revenues, geographic

The following table presents further disaggregated revenues for the Fluids Systems segment:


	First Quarter
(In thousands)	2020		2019
United States	$	73,660	$	103,059
Canada	13,260		13,266
Total North America	86,920		116,325

EMEA	42,137		37,765
Other	3,748		6,563
Total International	45,885		44,328

Total Fluids Systems revenues	$	132,805	$	160,653

Schedule of disaggregated revenues, segments

The following table presents further disaggregated revenues for the Mats and Integrated Services segment:


	First Quarter
(In thousands)	2020		2019
Service revenues	$	14,101	$	21,150
Rental revenues	13,502		21,580
Product sales revenues	4,142		8,090
Total Mats and Integrated Services revenues	$	31,745	$	50,820

Basis of Presentation and Significant Accounting Policies - Narrative (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Jan. 01, 2020	Dec. 31, 2019
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Reduction to opening retained earnings	$ (120,501)	$ (133,384)	$ (134,119)
ASU 2016-03
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Reduction to opening retained earnings		$ 735

Basis of Presentation and Significant Accounting Policies - Cumulative Effect of the Changes Made to Consolidated Balance Sheet for the Adoption of New Guidance (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Jan. 01, 2020	Dec. 31, 2019
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Receivables, net	$ 197,440	$ 215,755	$ 216,714
Deferred tax assets	5,077	3,659	3,600
Deferred tax liabilities	32,614	34,082	34,247
Retained earnings	$ 120,501	133,384	$ 134,119
Impact of Adoption of New Credit Losses Guidance
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Receivables, net		(959)
Deferred tax assets		59
Deferred tax liabilities		(165)
Retained earnings		$ (735)

Earnings Per Share - Reconciliation (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Numerator
Net income (loss) - basic and diluted	$ (12,148)	$ 1,282
Denominator
Weighted average common shares outstanding - basic (in shares)	89,645	90,111
Dilutive effect of stock options and restricted stock awards (in shares)	0	2,267
Dilutive effect of 2021 Convertible Notes (in shares)	0	0
Weighted average common shares outstanding - diluted (in shares)	89,645	92,378
Net income (loss) per common share
Basic (in dollars per share)	$ (0.14)	$ 0.01
Diluted (in dollars per share)	$ (0.14)	$ 0.01
Stock options and restricted stock excluded from calculation of diluted earnings per share because anti-dilutive for the period (in shares)	4,835	1,712

Earnings Per Share - Narrative (Details)	Mar. 31, 2020 $ / shares
Convertible Notes \| Senior notes
Debt Instrument [Line Items]
Debt instrument, convertible, conversion price (in dollars per share)	$ 9.33

Repurchase Program (Details) - USD ($) $ in Thousands	3 Months Ended
Repurchase Program (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Equity, Class of Treasury Stock [Line Items]
Stock repurchase program, remaining authorized repurchase amount	$ 67,200
Shares repurchased (in shares)	0	655,666
Shares repurchased, value		$ 5,013
Convertible Notes
Equity, Class of Treasury Stock [Line Items]
Repurchased face amount	$ 14,500		$ 0
Repurchase amount	$ 13,800

Receivables - Schedule of Receivables (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Jan. 01, 2020	Dec. 31, 2019
Trade receivables:
Gross trade receivables	$ 188,576		$ 207,554
Allowance for credit losses	(6,141)		(6,007)
Net trade receivables	182,435		201,547
Income tax receivables	6,263		7,393
Other receivables	8,742		7,774
Total receivables, net	$ 197,440	$ 215,755	$ 216,714

Receivables - Narrative (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Accounts, Notes, Loans and Financing Receivable [Line Items]
Other receivables	$ 8,742	$ 7,774
Foreign
Accounts, Notes, Loans and Financing Receivable [Line Items]
Other receivables	$ 7,000	$ 6,200

Receivables - Changes in Allowance for Credit Losses (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Jan. 01, 2020
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period	$ 6,007	$ 10,034
Cumulative effect of accounting change			$ (735)
Credit loss expense	20	386
Write-offs, net of recoveries	(845)	(861)
Balance at end of period	$ 6,141	$ 9,559
ASU 2016-03
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Cumulative effect of accounting change			$ 959

Inventories (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Inventory [Line Items]
Raw materials	$ 129,074	$ 146,363
Total inventory	187,979	196,897
Fluids systems
Inventory [Line Items]
Raw materials	124,623	141,314
Mats and integrated services
Inventory [Line Items]
Raw materials	4,451	5,049
Finished goods	18,013	10,992
Blended fluids systems components
Inventory [Line Items]
Finished goods	$ 40,892	$ 39,542

Financing Arrangements and Fair Value of Financial Instruments - Schedule of Financing Arrangements (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Principal Amount	$ 172,207	$ 172,164
Unamortized Discount and Debt Issuance Costs	(9,261)	(12,291)
Total Debt	162,946	159,873
Less: Current portion
Principal Amount	(6,981)	(6,335)
Unamortized Discount and Debt Issuance Costs	0	0
Total Debt	(6,981)	(6,335)
Long-term debt
Principal Amount	165,226	165,829
Unamortized Discount and Debt Issuance Costs	(9,261)	(12,291)
Total Debt	155,965	153,538
Other debt
Debt Instrument [Line Items]
Principal Amount	7,707	7,164
Total Debt	7,707	7,164
Revolving credit facility \| ABL Facility
Debt Instrument [Line Items]
Principal Amount	79,000	65,000
Total Debt	79,000	65,000
Senior notes \| Convertible Notes
Debt Instrument [Line Items]
Principal Amount	85,500	100,000
Unamortized Discount and Debt Issuance Costs	(9,261)	(12,291)
Total Debt	$ 76,239	$ 87,709

Financing Arrangements and Fair Value of Financial Instruments - Narrative (Details)	1 Months Ended	3 Months Ended
	Mar. 31, 2019 USD ($)	Mar. 31, 2020 USD ($) trading_day $ / shares	Mar. 31, 2019 USD ($)	Dec. 31, 2019 USD ($)	Dec. 31, 2016 USD ($)	May 31, 2016 USD ($)
Debt Instrument [Line Items]
Principal amount outstanding		$ 172,207,000		$ 172,164,000
Long-term debt, excluding current maturities		155,965,000		153,538,000
Unamortized debt discount and debt issuance costs		9,261,000		12,291,000
Loss on extinguishment of debt		915,000	$ 0
Current debt		6,981,000		6,335,000
Foreign operations
Debt Instrument [Line Items]
Current debt		$ 6,700,000		4,800,000
Senior notes
Debt Instrument [Line Items]
Debt instrument, convertible, threshold trading days \| trading_day		20
Debt instrument, convertible, threshold consecutive trading days \| trading_day		30
Conversion price percentage		130.00%
Business day period		5 days
Consecutive trading day period		5 days
Debt conversion, principal amount as basis for conversion rate		$ 1,000
Percent threshold last reported sale price		98.00%
Interest rate, effective percentage		11.30%
Convertible Notes
Debt Instrument [Line Items]
Repurchased face amount		$ 14,500,000		0
Repurchase amount		13,800,000
Loss on extinguishment of debt		900,000
Convertible Notes \| Senior notes
Debt Instrument [Line Items]
Debt instrument, face amount					$ 100,000,000.0
Principal amount outstanding		$ 85,500,000		100,000,000
Interest rate, stated percentage					4.00%
Debt instrument, convertible, conversion price (in dollars per share) \| $ / shares		$ 9.33
Unamortized debt discount and debt issuance costs		$ 9,261,000		12,291,000
Convertible debt, fair value		$ 63,800,000		101,400,000
Convertible Notes \| Revolving credit facility
Debt Instrument [Line Items]
Fixed charge coverage ratio, amount						$ 25,000,000.0
ABL Facility \| Federal Funds Rate
Debt Instrument [Line Items]
Base rate basis spread on variable rate	0.50%
ABL Facility \| London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Base rate basis spread on variable rate	1.00%
Basis spread on variable rate		1.50%
ABL Facility \| Base Rate
Debt Instrument [Line Items]
Basis spread on variable rate		0.50%
ABL Facility \| Minimum \| London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Basis spread on variable rate	1.50%
ABL Facility \| Minimum \| Base Rate
Debt Instrument [Line Items]
Basis spread on variable rate	0.50%
ABL Facility \| Maximum \| London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Basis spread on variable rate	2.00%
ABL Facility \| Maximum \| Base Rate
Debt Instrument [Line Items]
Basis spread on variable rate	1.00%
ABL Facility \| Revolving credit facility
Debt Instrument [Line Items]
Principal amount outstanding		$ 79,000,000		$ 65,000,000
Maximum borrowing capacity	$ 200,000,000.0	151,000,000.0	200,000,000.0
Maximum borrowing capacity, maximum	$ 275,000,000.0		$ 275,000,000.0
Drawn		79,000,000.0
Remaining borrowing capacity		$ 72,000,000.0
Fixed charge coverage ratio, amount						22,500,000
Debt, weighted average interest rate		2.40%
Unused capacity, commitment fee percentage		0.375%
Covenant terms acceleration of other indebtedness						$ 25,000,000.0
ABL Facility \| Revolving credit facility \| Minimum
Debt Instrument [Line Items]
Unused capacity, commitment fee percentage		0.25%
ABL Facility \| Revolving credit facility \| Maximum
Debt Instrument [Line Items]
Unused capacity, commitment fee percentage		0.375%
Credit Agreement \| Domestic Line of Credit
Debt Instrument [Line Items]
Letters of credit outstanding, amount		$ 49,800,000
Restricted cash and cash equivalents, current		7,600,000
Convertible debt, debt component
Debt Instrument [Line Items]
Long-term debt, excluding current maturities		76,200,000
Unamortized debt discount and debt issuance costs		$ 9,300,000

Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended
Income Taxes (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Mar. 31, 2019	May 06, 2020
Income Tax Contingency [Line Items]
Provision for income taxes	$ 164	$ 1,803
Effective income tax rate		58.00%
Discrete tax adjustments		$ 700
Subsequent event
Income Tax Contingency [Line Items]
Alternative minimum tax carryforwards			$ 700

Commitments and Contingencies (Details)	3 Months Ended
Commitments and Contingencies (Details)	Mar. 31, 2020 plaintiff
Kenedy, Texas Drilling Fluids Facility Fire \| Facility Fire
Loss Contingencies [Line Items]
Number of plaintiffs	4

Supplemental Disclosures to the Statements of Cash Flows - Supplemental Disclosures (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Cash paid for:
Income taxes (net of refunds)	$ 1,888	$ 3,868
Interest	$ 991	$ 1,514

Supplemental Disclosures to the Statements of Cash Flows - Cash, Cash Equivalents and Restricted Cash (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019	Mar. 31, 2019	Dec. 31, 2018
Supplemental Cash Flow Elements [Abstract]
Cash and cash equivalents	$ 49,064	$ 48,672
Restricted cash (included in prepaid expenses and other current assets)	7,571	8,191
Cash, cash equivalents, and restricted cash	$ 56,635	$ 56,863	$ 62,611	$ 64,266

Segment Data - Reportable Segments (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Revenue, Major Customer [Line Items]
Revenues	$ 164,550	$ 211,473
Operating income (loss)	(5,886)	5,679
Fluids systems
Revenue, Major Customer [Line Items]
Revenues	132,805	160,653
Mats and integrated services
Revenue, Major Customer [Line Items]
Revenues	31,745	50,820
Operating segments \| Fluids systems
Revenue, Major Customer [Line Items]
Operating income (loss)	(2,268)	3,874
Operating segments \| Mats and integrated services
Revenue, Major Customer [Line Items]
Operating income (loss)	3,062	13,538
Corporate office
Revenue, Major Customer [Line Items]
Operating income (loss)	$ (6,680)	$ (11,733)

Segment Data - Disaggregated Revenues, Geographic (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Disaggregation of Revenue [Line Items]
Revenues	$ 164,550	$ 211,473
Fluids systems
Disaggregation of Revenue [Line Items]
Revenues	132,805	160,653
Fluids systems \| North America
Disaggregation of Revenue [Line Items]
Revenues	86,920	116,325
Fluids systems \| United States
Disaggregation of Revenue [Line Items]
Revenues	73,660	103,059
Fluids systems \| Canada
Disaggregation of Revenue [Line Items]
Revenues	13,260	13,266
Fluids systems \| Total International
Disaggregation of Revenue [Line Items]
Revenues	45,885	44,328
Fluids systems \| EMEA
Disaggregation of Revenue [Line Items]
Revenues	42,137	37,765
Fluids systems \| Other
Disaggregation of Revenue [Line Items]
Revenues	$ 3,748	$ 6,563

Segment Data - Disaggregated Revenues, Segment (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Disaggregation of Revenue [Line Items]
Revenues	$ 164,550	$ 211,473
Mats and integrated services
Disaggregation of Revenue [Line Items]
Revenues	31,745	50,820
Mats and integrated services \| Service revenues
Disaggregation of Revenue [Line Items]
Revenues	14,101	21,150
Mats and integrated services \| Rental revenues
Disaggregation of Revenue [Line Items]
Revenues	13,502	21,580
Mats and integrated services \| Product sales revenues
Disaggregation of Revenue [Line Items]
Revenues	$ 4,142	$ 8,090

Segment Data - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended
Segment Data - Narrative (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019	Mar. 31, 2019	Dec. 31, 2018
Segment Reporting Information [Line Items]
Inventory write-downs	$ 1,400
Stockholders' equity	(530,359)	$ (548,645)	$ (569,788)	$ (569,681)
Goodwill	42,108	42,332
Property, plant and equipment, net	305,732	$ 310,409
Finite-lived intangible assets, net	27,500
Fluids systems
Segment Reporting Information [Line Items]
Combined assets	170,800
Mats and integrated services
Segment Reporting Information [Line Items]
Combined assets	150,800
Operating segments \| Fluids systems
Segment Reporting Information [Line Items]
Inventory write-downs	1,200
Corporate office
Segment Reporting Information [Line Items]
Inventory write-downs	200
Accumulated translation losses
Segment Reporting Information [Line Items]
Stockholders' equity	$ 11,600

Label	Element	Value
Retained Earnings [Member]
Cumulative Effect of New Accounting Principle in Period of Adoption	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	$ (735,000)