NPK International (NPKI) 10-K 21 Feb 20 2019 FY Annual report Financial data

Cover Page

Cover Page - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Feb. 18, 2020	Jun. 30, 2019
Cover page.
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2019
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 Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
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 Public Float			$ 651.3
Entity Common Stock, Shares Outstanding (in shares)		89,897,646
Documents Incorporated by Reference	Pursuant to General Instruction G(3) to this Form 10-K, the information required by Items 10, 11, 12, 13 and 14 of Part III hereof is incorporated by reference from the registrant’s definitive Proxy Statement for its 2020 Annual Meeting of Stockholders.
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	FY
Amendment Flag	false
Entity Central Index Key	0000071829
Current Fiscal Year End Date	--12-31

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
ASSETS
Cash and cash equivalents	$ 48,672	$ 56,118
Receivables, net	216,714	254,394
Inventories	196,897	196,896
Prepaid expenses and other current assets	16,526	15,904
Total current assets	478,809	523,312
Property, plant and equipment, net	310,409
Property, plant and equipment, net		316,293
Operating lease assets	32,009
Goodwill	42,332	43,832
Other intangible assets, net	29,677	25,160
Deferred tax assets	3,600	4,516
Other assets	3,243	2,741
Total assets	900,079	915,854
LIABILITIES AND STOCKHOLDERS’ EQUITY
Current debt	6,335	2,522
Accounts payable	79,777	90,607
Accrued liabilities	42,750	48,797
Total current liabilities	128,862	141,926
Long-term debt, less current portion	153,538	159,225
Noncurrent operating lease liabilities	26,946
Deferred tax liabilities	34,247	37,486
Other noncurrent liabilities	7,841	7,536
Total liabilities	351,434	346,173
Commitments and contingencies (Note 16)
Stockholders' Equity
Common stock, $0.01 par value (200,000,000 shares authorized and 106,696,719 and 106,362,991 shares issued, respectively)	1,067	1,064
Paid-in capital	620,626	617,276
Accumulated other comprehensive loss	(67,947)	(67,673)
Retained earnings	134,119	148,802
Treasury stock, at cost (16,958,418 and 15,530,952 shares, respectively)	(139,220)	(129,788)
Total stockholders’ equity	548,645	569,681
Total liabilities and stockholders' equity	$ 900,079	$ 915,854

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - $ / shares	Dec. 31, 2019	Dec. 31, 2018
Statement of Financial Position [Abstract]
Common stock par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized	200,000,000	200,000,000
Common stock, shares issued	106,696,719	106,362,991
Treasury stock, shares	16,958,418	15,530,952

Consolidated Statements of Oper

Consolidated Statements of Operations - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Revenues
Revenues	$ 820,119	$ 946,548	$ 747,763
Cost of revenues
Cost of revenues	684,738	766,975	607,899
Selling, general and administrative expenses	113,394	115,127	108,838
Other operating (income) loss, net	170	888	(410)
Goodwill impairment	11,422	0	0
Operating income	10,395	63,558	31,436
Foreign currency exchange (gain) loss	(816)	1,416	2,051
Interest expense, net	14,369	14,864	13,273
Income (loss) from continuing operations before income taxes	(3,158)	47,278	16,112
Provision for income taxes	9,788	14,997	4,893
Income (loss) from continuing operations	(12,946)	32,281	11,219
Loss from disposal of discontinued operations, net of tax	0	0	(17,367)
Net income (loss)	$ (12,946)	$ 32,281	$ (6,148)
Income (loss) per common share - basic:
Income (loss) from continuing operations (in dollars per share)	$ (0.14)	$ 0.36	$ 0.13
Loss from discontinued operations (in dollars per share)	0	0	(0.20)
Net income (loss) (in dollars per share)	(0.14)	0.36	(0.07)
Income (loss) per common share - diluted:
Income (loss) from continuing operations (in dollars per share)	(0.14)	0.35	0.13
Loss from discontinued operations (in dollars per share)	0	0	(0.20)
Net income (loss) (in dollars per share)	$ (0.14)	$ 0.35	$ (0.07)
Product sales [Member]
Revenues
Revenues	$ 654,006	$ 743,342	$ 628,401
Cost of revenues
Cost of revenues	568,388	633,847	539,243
Rental and service [Member]
Revenues
Revenues	166,113	203,206	119,362
Cost of revenues
Cost of revenues	$ 116,350	$ 133,128	$ 68,656

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ (12,946)	$ 32,281	$ (6,148)
Foreign currency translation adjustments (net of tax benefit of $373, $413, $0)	(274)	(14,454)	9,989
Comprehensive income (loss)	$ (13,220)	$ 17,827	$ 3,841

Consolidated Statements of Co_2

Consolidated Statements of Comprehensive Income (Loss) (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Statement of Comprehensive Income [Abstract]
Foreign currency translation adjustments, tax	$ 373	$ 413	$ 0

Consolidated Statements of Stoc

Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock [Member]	Paid-In Capital [Member]	Accumulated Other Comprehensive Loss [Member]	Retained Earnings [Member]	Treasury Stock [Member]
Beginning balance at Dec. 31, 2016	$ 500,543	$ 998	$ 558,966	$ (63,208)	$ 129,873	$ (126,086)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(6,148)				(6,148)
Employee stock options, restricted stock and employee stock purchase plan	(185)	14	1,636		(350)	(1,485)
Stock-based compensation expense	10,843		10,843
Issuance of shares for acquisition	32,438	34	32,404
Foreign currency translation, net of tax	9,989			9,989
Ending balance at Dec. 31, 2017	547,480	1,046	603,849	(53,219)	123,375	(127,571)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	32,281				32,281
Employee stock options, restricted stock and employee stock purchase plan	777	18	3,066		(90)	(2,217)
Stock-based compensation expense	10,361		10,361
Foreign currency translation, net of tax	(14,454)			(14,454)
Ending 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)	(12,946)				(12,946)
Employee stock options, restricted stock and employee stock purchase plan	(425)	3	(8,290)		(1,737)	9,599
Stock-based compensation expense	11,640		11,640
Treasury shares purchased at cost	(19,031)					(19,031)
Foreign currency translation, net of tax	(274)			(274)
Ending balance at Dec. 31, 2019	$ 548,645	$ 1,067	$ 620,626	$ (67,947)	$ 134,119	$ (139,220)

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Cash flows from operating activities:
Net income (loss)	$ (12,946)	$ 32,281	$ (6,148)
Adjustments to reconcile net income (loss) to net cash provided by operations:
Goodwill impairment	11,422	0	0
Depreciation and amortization	47,144	45,899	39,757
Stock-based compensation expense	11,640	10,361	10,843
Provision for deferred income taxes	(4,250)	236	(10,350)
Net provision for doubtful accounts	1,792	2,849	1,481
Loss on sale of a business	0	0	21,983
Gain on sale of assets	(10,801)	(1,821)	(5,478)
Gain on insurance recovery	0	(606)	0
Amortization of original issue discount and debt issuance costs	6,188	5,510	5,345
Change in assets and liabilities:
(Increase) decrease in receivables	40,182	(7,388)	(73,722)
(Increase) decrease in inventories	699	(30,352)	(15,097)
(Increase) decrease in other assets	(1,032)	1,055	986
Increase (decrease) in accounts payable	(8,318)	2,449	14,153
Increase (decrease) in accrued liabilities and other	(9,434)	2,930	54,628
Net cash provided by operating activities	72,286	63,403	38,381
Cash flows from investing activities:
Capital expenditures	(44,806)	(45,141)	(31,371)
Business acquisitions, net of cash acquired	(18,692)	(249)	(44,750)
Proceeds from sale of property, plant and equipment	13,734	2,612	7,747
Proceeds from insurance property claim	0	1,000	0
Refund of proceeds from sale of a business	0	(13,974)	0
Net cash used in investing activities	(49,764)	(55,752)	(68,374)
Cash flows from financing activities:
Borrowings on lines of credit	327,983	347,613	176,267
Payments on lines of credit	(335,613)	(352,582)	(93,700)
Payment on 2017 Convertible Notes	0	0	(83,252)
Debt issuance costs	(1,214)	(149)	(955)
Proceeds from employee stock plans	1,314	3,874	2,424
Purchases of treasury stock	(21,737)	(3,870)	(3,239)
Other financing activities	(259)	601	165
Net cash used in financing activities	(29,526)	(4,513)	(2,290)
Effect of exchange rate changes on cash	(399)	(4,332)	2,444
Net decrease in cash, cash equivalents, and restricted cash	(7,403)	(1,194)	(29,839)
Cash, cash equivalents, and restricted cash at beginning of year	64,266	65,460	95,299
Cash, cash equivalents, and restricted cash at end of year	$ 56,863	$ 64,266	$ 65,460

Summary of Significant Accounti

Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2019
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Summary of Significant Accounting Policies Organization and Principles of Consolidation. Newpark Resources, Inc. was organized in 1932 as a Nevada corporation. In 1991, we changed our state of incorporation to Delaware. The consolidated financial statements include our company and our wholly-owned subsidiaries (“we,” “our,” or “us”). All intercompany transactions are eliminated in consolidation. We are a geographically diversified supplier providing products, as well as rentals and services primarily to the oil and natural gas exploration and production (“E&P”) industry. We operate our business through two reportable segments: Fluids Systems and Mats and Integrated Services. Our Fluids Systems segment provides customized drilling, completion, and stimulation fluids solutions to E&P customers primarily in North America and Europe, the Middle East and Africa (“EMEA”), as well as certain countries in Asia Pacific and Latin America. Our Mats and Integrated Services segment provides composite mat rentals utilized for temporary worksite access, along with related site construction and services to customers in various markets including E&P, electrical transmission & distribution, pipeline, solar, petrochemical, and construction industries across North America and Europe. We also sell composite mats to customers around the world. Use of Estimates and Market Risks . The preparation of financial statements in conformity with accounting principles generally accepted in the United States (“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. Estimates used in preparing our consolidated financial statements include, but are not limited to the following: allowances for doubtful accounts, reserves for self-insured retention under insurance programs, estimated performance and values associated with employee incentive programs, fair values used for impairments of long-lived assets, including goodwill and other intangibles, and valuation allowances for deferred tax assets. Our operating results, particularly for the Fluids Systems segment, depend on oil and natural gas drilling activity levels in the markets we serve and the nature of the drilling operations (including the depth and whether the wells are drilled vertically or horizontally), which governs the revenue potential of each well. Drilling activity levels, in turn, depend on a variety of factors, including oil and natural gas commodity pricing, inventory levels, product demand, and regulatory restrictions. Oil and natural gas prices and activity are cyclical and volatile, and this market volatility has a significant impact on our operating results. Cash Equivalents. All highly liquid investments with a remaining maturity of three months or less at the date of acquisition are classified as cash equivalents. Restricted Cash. Cash that is restricted as to withdrawal or usage is recognized as restricted cash and is included in other current assets in the consolidated balance sheets. Allowance for Doubtful Accounts. Reserves for uncollectible accounts receivable are determined on a specific identification basis when we believe that the required payment of specific amounts owed to us is not probable. The majority of our revenues are from mid-sized and international oil companies as well as government-owned or government-controlled oil companies, and we have receivables in several foreign jurisdictions. Changes in the financial condition of our customers or political changes in foreign jurisdictions could cause our customers to be unable to repay these receivables, resulting in additional allowances. Inventories. Inventories are stated at the lower of cost (principally average cost) or net realizable value. Certain conversion costs associated with the acquisition, production, blending, and storage of inventory in our Fluids Systems segment as well as in the manufacturing operations in the Mats and Integrated Services segment are capitalized as a component of the carrying value of the inventory and expensed as a component of cost of revenues as the products are sold. Reserves for inventory obsolescence are determined based on the fair value of the inventory using factors such as our historical usage of inventory on-hand, future expectations related to our customers’ needs, market conditions, and the development of new products. Property, Plant and Equipment. Property, plant and equipment are recorded at cost. Additions and improvements that extend the useful life of an asset are capitalized. We capitalize interest costs on significant capital projects. Maintenance and repairs are expensed as incurred. Sales and disposals of property, plant and equipment are removed at carrying cost less accumulated depreciation with any resulting gain or loss reflected in earnings. Depreciation is provided on property, plant and equipment, including finance lease assets, primarily utilizing the straight-line method over the following estimated useful service lives or lease term: Computer hardware and office equipment 3-5 years Computer software 3-10 years Autos and light trucks 5-7 years Furniture, fixtures, and trailers 7-10 years Composite mats (rental fleet) 7-12 years Machinery and heavy equipment 10-15 years Owned buildings 20-39 years Leasehold improvements Lease term, including reasonably assured renewal periods Goodwill and Other Intangible Assets. Goodwill represents the excess of the purchase price of acquisitions over the fair value of the net identifiable assets acquired in business combinations. Goodwill and other intangible assets with indefinite lives are not amortized. Intangible assets with finite useful lives are amortized either on a straight-line basis over the asset’s estimated useful life or on a basis that reflects the pattern in which the economic benefits of the asset are realized. Any period costs of maintaining intangible assets are expensed as incurred. Impairment of Long-Lived Assets. Goodwill and other indefinite-lived intangible assets are tested for impairment annually as of November 1, or more frequently, if an indication of impairment exists. As part of our annual goodwill review we first perform a qualitative assessment based on company performance and future business outlook to determine if indicators of impairment exist. When there are qualitative indicators of impairment, we use an impairment test which includes a comparison of the carrying value of net assets of our reporting units, including goodwill, with their estimated fair values, which we estimate using a combination of a market multiple and discounted cash flow approach (classified within level 3 of the fair value hierarchy). We also compare the aggregate fair values of our reporting units with our market capitalization. If the carrying value exceeds the estimated fair value, an impairment charge is recorded in the period in which such review is performed. We identify our reporting units based on our analysis of several factors, including our operating segment structure, evaluation of the economic characteristics of our geographic regions within each of our operating segments, and the extent to which our business units share assets and other resources. 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. In estimating expected cash flows, we use a probability-weighted approach. Should the review indicate that the carrying value is not fully recoverable, the amount of impairment loss is determined by comparing the carrying value to the estimated fair value. Insurance. We maintain reserves for estimated future payments associated with our self-insured employee healthcare programs, as well as the self-insured retention exposures under our general liability, auto liability, and workers compensation insurance policies. Our reserves are determined based on historical experience under these programs, including estimated development of known claims and estimated incurred-but-not-reported claims. Treasury Stock. Treasury stock is carried at cost, which includes the entire cost of the acquired stock. Revenue Recognition. In 2014, the Financial Accounting Standards Board (“FASB”) amended the guidance for revenue from contracts with customers. See "New Accounting Pronouncements" below for details about the amended guidance and about our adoption. Results for reporting periods beginning after December 31, 2017 are presented under the new guidance, while prior period amounts were not adjusted and continue to be reported in accordance with previous guidance. The adoption of this new guidance primarily affected the timing of revenue recognition for fluid system additive products provided to customers in the delivery of an integrated fluid system in our U.S. drilling fluids business. Under previous guidance, we recognized revenue for these products upon shipment of materials and passage of title, with a reserve for estimated product returns. Under the new guidance, we recognize revenue for these products when they are utilized, which generally occurs at the time of consumption by the customer. The following provides a summary of our significant accounting policies for revenue recognition under the new guidance for periods beginning after December 31, 2017. Revenue Recognition - Fluids Systems. Revenues for fluid system additive products and engineering services, when provided to customers in the delivery of an integrated fluid system, are recognized as product sales revenues when utilized by the customer. Revenues for formulated liquid systems are recognized as product sales revenues when utilized or lost downhole while drilling. Revenues for equipment rentals and other services provided to customers that are ancillary to the fluid system product delivery are recognized in rental and service revenues when the services are performed. For direct sales of fluid system products, revenues are recognized when control passes to the customer, which is generally upon shipment of materials. Revenue Recognition - Mats and Integrated Services. Revenues for rentals and services are generated from both fixed-price and unit-priced contracts, which are generally short-term in duration. The activities under these contracts include the installation and rental of matting systems for a period of time and services such as access road construction, site planning and preparation, environmental protection, fluids and spill containment, erosion control, and site restoration services. Rental revenues are recognized over the rental term and service revenues are recognized when the specified services are performed. Revenues from any subsequent extensions to the rental agreements are recognized over the extension period. Revenues from the direct sale of mats are recognized when control passes to the customer, which is upon shipment or delivery, depending on the terms of the underlying sales contract. For both segments, the amount of revenue we recognize for products sold and services performed reflects the consideration to which we expect to be entitled in exchange for such goods or services, which generally reflects the amount we have the right to invoice based on agreed upon unit rates. While billing requirements vary, many of our customer contracts require that billings occur periodically or at the completion of specified activities, even though our performance and right to consideration occurs throughout the contract. As such, we recognize revenue as performance is completed in the amount to which we have the right to invoice. We do not disclose the value of our unsatisfied performance obligations for (i) contracts with an original expected length of one year or less and (ii) contracts for which we recognize revenue for the amount to which we have the right to invoice for products sold and services performed. Shipping and handling costs are reflected in cost of revenues, and all reimbursements by customers of shipping and handling costs are included in revenues. Income Taxes. We provide for deferred taxes using an asset and liability approach by measuring deferred tax assets and liabilities due to temporary differences existing at year end using currently enacted tax rates and laws that will be in effect when the differences are expected to reverse. We reduce deferred tax assets by a valuation allowance when, based on our estimates, it is more likely than not that a portion of those assets will not be realized in a future period. The estimates utilized in recognition of deferred tax assets are subject to revision, either up or down, in future periods based on new facts or circumstances. We present deferred tax assets and liabilities as noncurrent in the balance sheet based on an analysis of each taxpaying component within a jurisdiction. We evaluate uncertain tax positions and record a liability as circumstances warrant. Share-Based Compensation. Share-based compensation cost is measured at the grant date based on the fair value of the award, net of an estimated forfeiture rate. We recognize these costs in the statement of operations using the straight-line method over the vesting term. Fair value at the grant date is determined using the Black-Scholes option-pricing model for stock options and using the Monte Carlo valuation model for performance-based restricted stock units. Foreign Currency Translation. The functional currency for substantially all international subsidiaries is their respective local currency. Financial statements for these international subsidiaries are translated into U.S. dollars using the exchange rate at each balance sheet date for assets and liabilities and the average exchange rates in effect during the respective period for revenues and expenses. Exchange rate adjustments resulting from translation of foreign currency financial statements of our international subsidiaries are reflected in accumulated other comprehensive loss in stockholders’ equity until such time that the international subsidiary is sold or liquidation is substantially complete, at which time the related accumulated adjustments would be reclassified into income. Exchange rate adjustments resulting from foreign currency denominated transactions are recorded in income. At December 31, 2019 and 2018 , accumulated other comprehensive loss related to foreign subsidiaries reflected in stockholders’ equity was $67.9 million and $67.7 million , respectively. At December 31, 2019, we had $10.3 million of accumulated translation losses related to our subsidiary in Brazil, which we are currently in process of winding down. As such, we will reclassify these accumulated losses and recognize a charge to income at such time when we have substantially liquidated our subsidiary in Brazil. Fair Value Measurement. Fair value is measured as the price that would be received from selling an asset or paid to transfer a liability in an orderly transaction between market participants at a measurement date. We apply the following fair value hierarchy, which prioritizes the inputs used to measure fair value into three levels and bases the categorization within the hierarchy upon the lowest level of input that is available and significant to the fair value measurement: • Level 1: The use of quoted prices in active markets for identical financial instruments. • Level 2: The use of quoted prices for similar instruments in active markets or quoted prices for identical or similar instruments in markets that are not active or other inputs that are observable in the market or can be corroborated by observable market data. • Level 3: The use of significantly unobservable inputs that typically require the use of management’s estimates of assumptions that market participants would use in pricing. New Accounting Pronouncements Standards Adopted in 2019 Leases. In 2016, the FASB amended the guidance related to the accounting for leases. The new guidance provides principles for the recognition, measurement, presentation, and disclosure of leases and requires lessees to recognize both assets and liabilities arising from finance and operating leases. The classification as either a finance or operating lease will determine whether lease expense is recognized based on an effective interest method basis or on a straight-line basis over the term of the lease, respectively. We adopted this new guidance as of January 1, 2019 using the modified retrospective transition method and recorded approximately $28.0 million of operating lease assets and liabilities as of January 1, 2019, with no cumulative effect adjustment to retained earnings. The new guidance had no impact on our consolidated statements of operations or cash flows. Results for reporting periods beginning after December 31, 2018 are presented under the new guidance, while prior period amounts were not adjusted and continue to be reported in accordance with previous guidance. As permitted under the transition guidance within the new standard, we elected to carry forward the historical lease identification and classification for existing leases upon adoption. We have also made an accounting policy election to not recognize leases with an initial term of 12 months or less in the consolidated balance sheets. See Note 8 for additional required disclosures. Standards Adopted in 2018 Revenue from Contracts with Customers. In 2014, the FASB amended the guidance for revenue from contracts with customers. The amendments are based on the principle that revenue should be recognized to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. We adopted this new guidance as of January 1, 2018 using the modified retrospective transition method, and recorded a net reduction of $2.3 million to opening retained earnings to reflect the cumulative effect of adoption for contracts not completed as of December 31, 2017. Results for reporting periods beginning after December 31, 2017 are presented under the new guidance, while prior period amounts were not adjusted and continue to be reported in accordance with previous guidance. The adoption of this new guidance primarily affected the timing of revenue recognition for fluid system additive products provided to customers in the delivery of an integrated fluid system in our U.S. drilling fluids business. There was no material impact on reported revenues for 2018 as a result of applying the new revenue recognition guidance. The adoption of this guidance also requires additional disclosures for disaggregated revenues, which are included in Note 13. See above for a summary of our significant accounting policies for revenue recognition under the new guidance for periods beginning after December 31, 2017. Accounting for Income Taxes: Intra-Entity Transfers of Assets Other Than Inventory. In 2016, the FASB amended the guidance related to the accounting for income tax consequences of intra-entity transfers of assets other than inventory. The guidance requires an entity to recognize the income tax consequences of an intra-entity transfer of an asset other than inventory when the transfer occurs, rather than the previous requirement to defer recognition of current and deferred income taxes for an intra-entity asset transfer until the asset had been sold to an outside party. This update does not change U.S. GAAP for the pre-tax effects of an intra-entity asset transfer or for an intra-entity transfer of inventory. We adopted this new guidance as of January 1, 2018 using the modified retrospective transition method, and recorded a net reduction of $4.5 million to opening retained earnings to reflect the cumulative effect of adoption for the current and deferred income tax consequences of an intra-entity sale of mats from the U.S. to the U.K. completed prior to 2018. Statement of Cash Flows. In 2016, the FASB issued new guidance that clarifies how certain cash receipts and cash payments are presented and classified in the statement of cash flows. This update provides guidance on eight specific cash flow issues. We adopted this new guidance as of January 1, 2018. The adoption of this new guidance had no impact on our historical financial statements or related disclosures. Standards Not Yet Adopted Credit Losses. In 2016, the 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. This guidance is effective for us in the first quarter of 2020. We will include incremental disclosures in our 2020 financial statements regarding our credit loss policies and related amounts. We have adopted the new guidance utilizing the modified retrospective transition method effective January 1, 2020. The cumulative effect adjustment to retained earnings upon adoption is not material.

Business Combinations

Business Combinations	12 Months Ended
	Dec. 31, 2019
Business Combinations [Abstract]
Business Combinations	Business Combinations In October 2019, we completed the acquisition of Cleansorb Limited (“Cleansorb”), a U.K. based provider of specialty chemicals for the oil and natural gas industry, which further expands our completion fluids technology portfolio and capabilities. The purchase price for this acquisition was $18.7 million , net of cash acquired, and was funded with borrowings under the ABL Facility. The results of operations of Cleansorb are reported within the Fluids Systems segment for the period subsequent to the date of the acquisition. The Cleansorb transaction has been recorded using the acquisition method of accounting and accordingly, assets acquired and liabilities assumed were recorded at their estimated fair values as of the acquisition date. The acquisition resulted in the recognition of $8.3 million in other intangible assets consisting primarily of customer relationships, technology, and tradename. All of the other intangibles are finite-lived intangible assets that are expected to be amortized over periods of 12 to 15 years with a weighted average amortization period of approximately 14 years. The excess of the total consideration was recorded as goodwill, which is not deductible for tax purposes. The fair values of the identifiable assets acquired and liabilities assumed were based on the company’s estimates and assumptions using various market, income, and cost valuation approaches, which are classified within level 3 of the fair value hierarchy. The following table summarizes the amounts recognized for the assets acquired and liabilities assumed as of the October 8, 2019 acquisition date. (in thousands) Receivables 2,691 Intangible assets 8,268 Other assets 974 Total assets acquired 11,933 Deferred tax liabilities 1,197 Other liabilities 1,302 Total liabilities assumed 2,499 Net assets purchased 9,434 Goodwill 9,258 Net cash conveyed at closing $ 18,692 In November 2017, we acquired certain assets and assumed certain liabilities of Well Service Group, Inc. and Utility Access Solutions, Inc. (together, “WSG”). The purchase price for this acquisition was $77.4 million , net of cash acquired, which included $45.0 million of total cash consideration and the issuance of approximately 3.4 million shares of our common equity valued at $32.4 million . In 2018, $0.2 million of the total cash consideration was paid as part of the final working capital settlement. The results of operations of WSG are reported within the Mats and Integrated Services segment for the period subsequent to the date of the acquisition.

Inventories

Inventories	12 Months Ended
	Dec. 31, 2019
Inventory Disclosure [Abstract]
Inventories	Inventories Inventories consisted of the following at December 31: (In thousands) 2019 2018 Raw materials: Fluids systems $ 141,314 $ 148,737 Mats and integrated services 5,049 1,485 Total raw materials 146,363 150,222 Blended fluids systems components 39,542 38,088 Finished goods - mats 10,992 8,586 Total inventories $ 196,897 $ 196,896 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.

Property, Plant and Equipment

Property, Plant and Equipment	12 Months Ended
	Dec. 31, 2019
Property, Plant and Equipment [Abstract]
Property, Plant and Equipment	Property, Plant and Equipment Property, plant and equipment consisted of the following at December 31: (In thousands) 2019 2018 Land $ 11,869 $ 11,338 Buildings and improvements 130,895 131,128 Machinery and equipment 295,622 291,081 Computer hardware and software 40,880 35,730 Furniture and fixtures 5,921 5,725 Construction in progress 13,091 12,960 498,278 487,962 Less accumulated depreciation (259,205 ) (239,643 ) 239,073 248,319 Composite mats (rental fleet) 125,300 120,644 Less accumulated depreciation - composite mats (53,964 ) (52,670 ) 71,336 67,974 Property, plant and equipment, net $ 310,409 $ 316,293 Depreciation expense was $42.8 million , $41.2 million , and $36.4 million in 2019 , 2018 and 2017 , respectively.

Goodwill and Other Intangible A

Goodwill and Other Intangible Assets	12 Months Ended
	Dec. 31, 2019
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Other Intangible Assets	Goodwill and Other Intangible Assets Changes in the carrying amount of goodwill by reportable segment are as follows: (In thousands) Fluids Mats and Total Balance at December 31, 2017 $ 1,782 $ 41,838 $ 43,620 Acquisition — 562 562 Effects of foreign currency (141 ) (209 ) (350 ) Balance at December 31, 2018 1,641 42,191 43,832 Acquisition 9,258 — 9,258 Impairment (11,422 ) — (11,422 ) Effects of foreign currency 523 141 664 Balance at December 31, 2019 $ — $ 42,332 $ 42,332 We completed the annual evaluation of the carrying values of our goodwill and other indefinite-lived intangible assets as of November 1, 2019. As a result of the decline in drilling activities and the projection of continued softness in the U.S. land market, as well as the decline in the quoted market prices of our common stock, we determined that it was more likely than not that the carrying value of our Fluids Systems reporting unit exceeded its estimated fair value such that goodwill was potentially impaired. As a result, we completed the evaluation to measure the amount of goodwill impairment determining a full impairment of goodwill related to the Fluids Systems reporting unit was required. As such, in the fourth quarter of 2019, we recorded an $11.4 million non-cash impairment charge to write-off all of the goodwill related to the Fluids Systems reporting unit. We also determined that the Mats and Integrated Services reporting unit did not have a fair value below its net carrying value and therefore, no impairment was required. Our impairment test included a comparison of the carrying value of net assets of our reporting units, including goodwill, with their estimated fair values, which we estimate using a combination of a market multiple and discounted cash flow approach. Significant assumptions inherent in the evaluation include the estimated growth rates for future revenues and the discount rate. Our assumptions were based on historical data supplemented by current and anticipated market conditions. Other intangible assets consisted of the following: December 31, 2019 December 31, 2018 (In thousands) Gross Accumulated Other Gross Accumulated Other Technology related $ 20,222 $ (6,516 ) $ 13,706 $ 17,380 $ (5,509 ) $ 11,871 Customer related 33,697 (18,234 ) 15,463 40,662 (27,891 ) 12,771 Employment related — — — 1,845 (1,845 ) — Total amortizing intangible assets 53,919 (24,750 ) 29,169 59,887 (35,245 ) 24,642 Permits and licenses 508 — 508 518 — 518 Total indefinite-lived intangible assets 508 — 508 518 — 518 Total intangible assets $ 54,427 $ (24,750 ) $ 29,677 $ 60,405 $ (35,245 ) $ 25,160 Total amortization expense related to other intangible assets was $4.4 million , $4.7 million and $3.3 million in 2019 , 2018 and 2017 , respectively. In October 2019, we completed the acquisition of Cleansorb, which resulted in additions to amortizable intangible assets of $8.3 million . See Note 2 for additional information. Estimated future amortization expense for the years ended December 31 is as follows: (In thousands) 2020 2021 2022 2023 2024 Thereafter Total Technology related $ 1,353 $ 1,298 $ 1,237 $ 1,068 $ 1,044 $ 7,706 $ 13,706 Customer related 1,416 996 783 663 1,458 10,147 15,463 Total future amortization expense $ 2,769 $ 2,294 $ 2,020 $ 1,731 $ 2,502 $ 17,853 $ 29,169 The weighted average amortization period for technology related and customer related intangible assets is 14 years and 12 years

Financing Arrangements

Financing Arrangements	12 Months Ended
	Dec. 31, 2019
Debt Disclosure [Abstract]
Financing Arrangements	Financing Arrangements Financing arrangements consisted of the following: December 31, 2019 December 31, 2018 (In thousands) Principal Amount Unamortized Discount and Debt Issuance Costs Total Debt Principal Amount Unamortized Discount and Debt Issuance Costs Total Debt 2021 Convertible Notes $ 100,000 $ (12,291 ) $ 87,709 $ 100,000 $ (17,752 ) $ 82,248 ABL Facility 65,000 — 65,000 76,300 — 76,300 Other debt 7,164 — 7,164 3,199 — 3,199 Total debt 172,164 (12,291 ) 159,873 179,499 (17,752 ) 161,747 Less: current portion (6,335 ) — (6,335 ) (2,522 ) — (2,522 ) Long-term debt $ 165,829 $ (12,291 ) $ 153,538 $ 176,977 $ (17,752 ) $ 159,225 2021 Convertible Notes. In December 2016, we issued $100.0 million of unsecured convertible senior notes (“2021 Convertible Notes”) that mature on December 1, 2021, unless earlier converted by the holders pursuant to the terms of the notes. 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 February 18, 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 initially 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. We estimated the fair value of the debt component of the notes to be $75.2 million at the issuance date, assuming a 10.5% non-convertible borrowing rate. The carrying amount of the equity component was determined to be approximately $24.8 million by deducting the fair value of the debt component from the principal amount of the notes, and was recorded as an increase to additional paid-in capital, net of the related deferred tax liability of $8.7 million . The excess of the principal amount of the debt component over its carrying amount (the “debt discount”) is being amortized as interest expense over the term of the notes using the effective interest method. We allocated transaction costs related to the issuance of the notes, including underwriting discounts, of $0.9 million and $2.7 million to the equity and debt components, respectively. Issuance costs attributable to the equity component were netted against the equity component recorded in additional paid-in capital. The amount of the equity component was $15.2 million at the time of issuance (net of issuance costs and the deferred tax liability related to the conversion feature) and is not remeasured as long as it continues to meet the conditions for equity classification. The $2.7 million of issuance costs attributable to the debt component were netted against long-term debt and are being amortized to interest expense over the term of the notes using the effective interest method. As of December 31, 2019 , the carrying amount of the debt component was $87.7 million , which is net of the unamortized debt discount and issuance costs of $11.0 million and $1.3 million , respectively. Including the impact of the debt discount and related deferred debt issuance costs, the effective interest rate on the notes is approximately 11.3% . 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 March 2019 amendment increased the amount available for borrowings, reduced applicable borrowing rates, and extended the term. 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 December 31, 2019 , our total availability under the ABL Facility was $156.8 million , of which $65.0 million was drawn, resulting in remaining availability of $91.8 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 2021 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 2021 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 2021 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 December 31, 2019 , 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 3.2% at December 31, 2019 . 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 December 31, 2019 , the applicable commitment fee was 37.5 basis points. The ABL Facility is a senior secured obligation, secured by first liens on substantially 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. Our foreign subsidiaries in Italy, India, the United Kingdom, and Canada maintain local credit arrangements consisting primarily of lines of credit or overdraft facilities which are 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 $4.8 million and $1.1 million , respectively, outstanding under these arrangements at December 31, 2019 and December 31, 2018 . We incurred net interest expense of $14.4 million , $14.9 million and $13.3 million for the years ended December 31, 2019 , 2018 and 2017 , respectively. There was no capitalized interest for the years ended December 31, 2019 or 2018 . Capitalized interest was $0.1 million for the year ended December 31, 2017. Scheduled repayment of long-term debt as of December 31, 2019 was $100.0 million in 2021 and $65.0 million in 2024.

Fair Value of Financial Instrum

Fair Value of Financial Instruments and Concentrations of Credit Risk	12 Months Ended
	Dec. 31, 2019
Fair Value Disclosures [Abstract]
Fair Value of Financial Instruments and Concentrations of Credit Risk	Fair Value of Financial Instruments and Concentrations of Credit Risk Fair Value of Financial Instruments 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 2021 Convertible Notes, approximated their fair values at December 31, 2019 and 2018 . The estimated fair value of our 2021 Convertible Notes was $101.4 million and $120.9 million at December 31, 2019 and 2018 , respectively, based on quoted market prices at these respective dates. Concentrations of Credit Risk Financial instruments that potentially subject us to significant concentrations of credit risk consist principally of cash and trade accounts receivable. At December 31, 2019 , substantially all of our cash deposits were held by our international subsidiaries in accounts at numerous financial institutions across the various regions in which we operate. A majority of the cash was held in accounts that maintain deposit ratings of P-1 by Moody’s, A-1 by Standard and Poor’s, and F1 by Fitch. As part of our investment strategy, we perform periodic evaluations of the relative credit standing of these financial institutions. Receivables Receivables consisted of the following at December 31: (In thousands) 2019 2018 Trade receivables: Gross trade receivables $ 207,554 $ 248,176 Allowance for doubtful accounts (6,007 ) (10,034 ) Net trade receivables 201,547 238,142 Income tax receivables 7,393 9,027 Other receivables 7,774 7,225 Total receivables, net $ 216,714 $ 254,394 Other receivables included $6.2 million and $6.3 million for value added, goods and service taxes related to foreign jurisdictions as of December 31, 2019 and 2018 , respectively. Customer Revenue Concentration We derive a significant portion of our revenues from companies in the E&P industry, and our customer base is highly concentrated in mid-sized and international oil companies as well as government-owned or government-controlled oil companies operating in the markets that we serve. For 2019 , 2018 and 2017 , revenues from our 20 largest customers represented approximately 42% , 44% and 45% , respectively, of our consolidated revenues. For 2019 , 2018 and 2017 , no single customer accounted for more than 10% of our consolidated revenues. We maintain an allowance for doubtful accounts based upon the expected collectability of accounts receivable. Changes in this allowance were as follows: (In thousands) 2019 2018 2017 Balance at beginning of year $ 10,034 $ 9,457 $ 8,849 Provision for doubtful accounts 1,792 2,849 1,481 Write-offs, net of recoveries (5,819 ) (2,272 ) (873 ) Balance at end of year $ 6,007 $ 10,034 $ 9,457

Leases

Leases	12 Months Ended
	Dec. 31, 2019
Leases [Abstract]
Leases	Leases We lease certain office space, manufacturing facilities, warehouses, land, and equipment. Our leases have remaining terms ranging from 1 to 12 years with various extension and termination options. We consider these options in determining the lease term used to establish our operating lease assets and liabilities. Lease agreements with lease and non-lease components are accounted for as a single lease component. Leases with an initial term of 12 months or less are not recorded in the balance sheet; we recognize lease expense for these leases on a straight-line basis over the lease term. Leases consisted of the following: (In thousands) Balance Sheet Classification December 31, 2019 Assets: Operating Operating lease assets $ 32,009 Finance Property, plant and equipment, net 1,135 Total lease assets $ 33,144 Liabilities: Current: Operating Accrued liabilities $ 6,105 Finance Current debt 287 Noncurrent: Operating Noncurrent operating lease liabilities $ 26,946 Finance Long-term debt, less current portion 829 Total lease liabilities $ 34,167 Total operating lease expenses were $30.1 million for 2019 , of which $19.5 million related to short-term leases and $10.6 million related to leases recognized in the balance sheet. Total operating lease expenses were $27.4 million and $23.9 million for 2018 and 2017 , respectively. Total operating lease expenses approximate cash paid during each period. Amortization and interest for finance leases are not material. Operating lease expenses and amortization of leased assets for finance leases are included in either cost of revenues or selling, general and administrative expenses. Interest for finance leases is included in interest expense, net. The maturity of lease liabilities as of December 31, 2019 is as follows: (In thousands) Operating Leases Finance Leases Total 2020 $ 7,528 $ 330 $ 7,858 2021 5,932 329 6,261 2022 4,351 329 4,680 2023 3,199 221 3,420 2024 2,760 — 2,760 Thereafter 17,165 — 17,165 Total lease payments 40,935 1,209 42,144 Less: Interest 7,884 93 7,977 Present value of lease liabilities $ 33,051 $ 1,116 $ 34,167 During 2019 , we entered into $12.1 million of new operating lease liabilities in exchange for leased assets. Lease Term and Discount Rate December 31, 2019 Weighted-average remaining lease term (years) Operating leases 8.5 Finance leases 3.7 Weighted-average discount rate Operating leases 4.8 % Finance leases 4.5 % As previously disclosed in our 2018 Annual Report on Form 10-K and under the previous lease accounting guidance, future minimum payments under non-cancelable operating leases at December 31, 2018, with initial or remaining terms in excess of one year are included in the table below. Future minimum payments under capital leases were not significant. (In thousands) 2019 $ 9,112 2020 5,707 2021 4,630 2022 3,816 2023 3,144 Thereafter 4,507 $ 30,916
Leases	Leases We lease certain office space, manufacturing facilities, warehouses, land, and equipment. Our leases have remaining terms ranging from 1 to 12 years with various extension and termination options. We consider these options in determining the lease term used to establish our operating lease assets and liabilities. Lease agreements with lease and non-lease components are accounted for as a single lease component. Leases with an initial term of 12 months or less are not recorded in the balance sheet; we recognize lease expense for these leases on a straight-line basis over the lease term. Leases consisted of the following: (In thousands) Balance Sheet Classification December 31, 2019 Assets: Operating Operating lease assets $ 32,009 Finance Property, plant and equipment, net 1,135 Total lease assets $ 33,144 Liabilities: Current: Operating Accrued liabilities $ 6,105 Finance Current debt 287 Noncurrent: Operating Noncurrent operating lease liabilities $ 26,946 Finance Long-term debt, less current portion 829 Total lease liabilities $ 34,167 Total operating lease expenses were $30.1 million for 2019 , of which $19.5 million related to short-term leases and $10.6 million related to leases recognized in the balance sheet. Total operating lease expenses were $27.4 million and $23.9 million for 2018 and 2017 , respectively. Total operating lease expenses approximate cash paid during each period. Amortization and interest for finance leases are not material. Operating lease expenses and amortization of leased assets for finance leases are included in either cost of revenues or selling, general and administrative expenses. Interest for finance leases is included in interest expense, net. The maturity of lease liabilities as of December 31, 2019 is as follows: (In thousands) Operating Leases Finance Leases Total 2020 $ 7,528 $ 330 $ 7,858 2021 5,932 329 6,261 2022 4,351 329 4,680 2023 3,199 221 3,420 2024 2,760 — 2,760 Thereafter 17,165 — 17,165 Total lease payments 40,935 1,209 42,144 Less: Interest 7,884 93 7,977 Present value of lease liabilities $ 33,051 $ 1,116 $ 34,167 During 2019 , we entered into $12.1 million of new operating lease liabilities in exchange for leased assets. Lease Term and Discount Rate December 31, 2019 Weighted-average remaining lease term (years) Operating leases 8.5 Finance leases 3.7 Weighted-average discount rate Operating leases 4.8 % Finance leases 4.5 % As previously disclosed in our 2018 Annual Report on Form 10-K and under the previous lease accounting guidance, future minimum payments under non-cancelable operating leases at December 31, 2018, with initial or remaining terms in excess of one year are included in the table below. Future minimum payments under capital leases were not significant. (In thousands) 2019 $ 9,112 2020 5,707 2021 4,630 2022 3,816 2023 3,144 Thereafter 4,507 $ 30,916

Income Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The U.S. Tax Cuts and Jobs Act (“Tax Act”) was enacted in December 2017 resulting in broad and complex changes to U.S. income tax law. The Tax Act included a one-time transition tax in 2017 on accumulated foreign subsidiary earnings not previously subject to U.S. income tax, reduced the U.S. corporate statutory tax rate from 35% to 21% effective January 1, 2018, generally eliminated U.S. federal income tax on dividends from foreign subsidiaries, created new tax on certain foreign-sourced earnings, made other changes to limit certain deductions and changed rules on how certain tax credits and net operating loss carryforwards can be utilized. Due to the timing of the enactment and the complexity involved in applying the provisions of the Tax Act, we made reasonable estimates of the effects and recorded provisional amounts in our 2017 financial statements. The net tax benefit recognized in 2017 related to the Tax Act was $3.4 million . As we completed our analysis of the Tax Act in 2018 for purposes of finalizing our 2017 U.S. federal income tax return, including assessment of additional guidance provided by regulatory bodies, we revised the cumulative net tax benefit related to the Tax Act to $5.0 million by recognizing an additional $1.6 million net tax benefit for 2018. For 2019 and 2018, our income tax provision includes the estimated expense for any U.S. federal and state income taxes from the new tax on certain foreign-sourced earnings as well as any additional foreign withholding taxes related to future repatriation of current year earnings in our non-U.S. subsidiaries held directly by a U.S. parent. The provision (benefit) for income taxes related to continuing operations was as follows: Year Ended December 31, (In thousands) 2019 2018 2017 Current: U.S. Federal $ 1,892 $ 805 $ (236 ) State 706 1,384 561 Foreign 11,440 12,572 10,301 Total current 14,038 14,761 10,626 Deferred: U.S. Federal (2,926 ) (331 ) (3,848 ) State 1,181 66 (796 ) Foreign (2,505 ) 501 (1,089 ) Total deferred (4,250 ) 236 (5,733 ) Total provision for income taxes $ 9,788 $ 14,997 $ 4,893 The total provision (benefit) was allocated to the following components of income (loss): Year Ended December 31, (In thousands) 2019 2018 2017 Income (loss) from continuing operations $ 9,788 $ 14,997 $ 4,893 Loss from discontinued operations — — (4,616 ) Total provision for income taxes $ 9,788 $ 14,997 $ 277 Income (loss) from continuing operations before income taxes was as follows: Year Ended December 31, (In thousands) 2019 2018 2017 U.S. $ (15,270 ) $ 4,084 $ (27,282 ) Foreign 12,112 43,194 43,394 Income (loss) from continuing operations before income taxes $ (3,158 ) $ 47,278 $ 16,112 The effective income tax rate for continuing operations is reconciled to the statutory federal income tax rate as follows: Year Ended December 31, (In thousands) 2019 2018 2017 Income tax expense (benefit) at federal statutory rate $ (663 ) $ 9,929 $ 5,639 Nondeductible executive compensation 756 1,165 768 Nondeductible goodwill impairment 2,401 — — Other nondeductible expenses 1,506 1,216 1,368 Stock-based compensation (248 ) (786 ) 472 Different rates on earnings of foreign operations 463 912 (2,139 ) Dividend taxes on unremitted earnings 1,609 3,023 1,506 U.S. tax on foreign earnings 1,215 333 — Change in valuation allowance 1,272 (790 ) 240 State tax expense (benefit), net 430 1,298 (283 ) Net impact of Tax Act — (1,613 ) (3,387 ) Other items, net 1,047 310 709 Total provision for income taxes $ 9,788 $ 14,997 $ 4,893 The provision for income taxes was $9.8 million for 2019 despite reporting a small pretax loss for the year. This result reflects the impact of the $11.4 million non-deductible goodwill impairment as well as the impact of the geographic composition of our pretax loss, where tax expense related to earnings from our international operations is only partially offset by the tax benefit from losses in the U.S. In addition, the provision for income taxes for 2019 includes a $1.4 million charge primarily related to the expiration of certain U.S. state net operating loss carryforwards. The provision for income taxes was $15.0 million for 2018 . The provision for income taxes for 2018 includes a $1.6 million net benefit related to U.S. tax reform and was also favorably impacted by excess tax benefits related to the vesting of certain stock-based compensation awards and a reduction in the valuation allowance related to our U.K. subsidiary. Although the U.S. corporate statutory tax rate was reduced from 35% to 21% effective January 1, 2018, our provision for income taxes beginning in 2018 also includes the new tax on certain foreign-sourced earnings as well as any additional foreign withholding taxes related to future repatriation of current year earnings from our non-U.S. subsidiaries. Due to the relative contribution of our domestic and foreign earnings, these taxes on certain foreign-sourced earnings effectively serve to increase our effective tax rate. Our effective tax rate in future periods will depend in large part on the relative contribution of our domestic and foreign earnings. Our effective tax rate in 2017 includes a $3.4 million benefit resulting from the provisional accounting for the Tax Act as described above. In addition, the 2017 effective tax rate was negatively impacted primarily by non-deductible expenses relative to the amount of pre-tax income. Temporary differences and carryforwards which give rise to deferred tax assets and liabilities consisted of the following at December 31: (In thousands) 2019 2018 Deferred tax assets: Net operating losses $ 14,205 $ 14,054 Foreign tax credits 5,651 7,304 Accruals not currently deductible 4,928 3,209 Unrealized foreign exchange losses, net 3,837 3,575 Stock-based compensation 3,380 3,266 Capitalized inventory costs 1,611 1,972 Alternative minimum tax carryforwards 369 2,198 Other 6,709 6,631 Total deferred tax assets 40,690 42,209 Valuation allowance (23,962 ) (23,842 ) Total deferred tax assets, net of allowances 16,728 18,367 Deferred tax liabilities: Accelerated depreciation and amortization (28,703 ) (29,656 ) Tax on unremitted earnings (13,645 ) (16,174 ) Original issue discount on 2021 Convertible Notes (2,311 ) (3,347 ) Other (2,716 ) (2,160 ) Total deferred tax liabilities (47,375 ) (51,337 ) Total net deferred tax liabilities $ (30,647 ) $ (32,970 ) Noncurrent deferred tax assets $ 3,600 $ 4,516 Noncurrent deferred tax liabilities (34,247 ) (37,486 ) Net deferred tax liabilities $ (30,647 ) $ (32,970 ) For state income tax purposes, we have net operating loss carryforwards (“NOLs”) of approximately $149.5 million available to reduce future state taxable income. These NOLs expire in varying amounts beginning in 2020 through 2039. Foreign NOLs of approximately $20.9 million are available to reduce future taxable income, some of which expire beginning in 2020. The realization of our net deferred tax assets is dependent on our ability to generate taxable income in future periods. At December 31, 2019 and 2018 , we have recorded a valuation allowance in the amount of $24.0 million and $23.8 million , respectively, primarily related to certain U.S. state and foreign NOL carryforwards, including Australia, as well as for certain tax credits recognized related to the accounting for the impact of the Tax Act, which may not be realized. We file income tax returns in the United States and several non-U.S. jurisdictions and are subject to examination in the various jurisdictions in which we file. We are no longer subject to income tax examinations for U.S. federal and substantially all state jurisdictions for years prior to 2012 and for substantially all foreign jurisdictions for years prior to 2008. In 2017, we received a Revenue Agent Report from the IRS disallowing a deduction claimed on our 2015 tax return associated with the forgiveness of certain inter-company balances due from our Brazilian subsidiary and assessing tax due of approximately $3.9 million . In 2019, we finalized the matter related to our 2015 U.S. tax return with no additional tax due. Following an audit in 2015, the treasury authority in Mexico issued a tax assessment (inclusive of interest and penalties) in the amount of 60 million pesos (approximately $3.3 million ) to our Mexico subsidiary primarily in connection with the export of mats from Mexico which took place in 2010. The mats that are the subject of this assessment were owned by a U.S. subsidiary and leased to our Mexico subsidiary for matting projects in the Mexican market. In 2010, we made the decision to move these mats out of Mexico to markets with higher demand. The Mexican treasury authority determined the export of the mats was the equivalent of a sale and assessed taxes on the gross declared value of the exported mats to our Mexico subsidiary. We retained outside legal counsel and filed administrative appeals with the treasury authority, but we were notified in April 2018 that the last administrative appeal had been rejected. In response, we filed an appeal in the Mexican Federal Tax Court in the second quarter of 2018, which required that we post a bond in the amount of the assessed taxes (plus additional interest). In the fourth quarter of 2018, the Mexican Federal Tax Court issued a favorable judgment nullifying in full the tax assessment which was subsequently appealed by the treasury authority in Mexico. Following a judgment by the Mexican Court of Appeals, in the third quarter of 2019 the Mexican Federal Tax Court confirmed the full nullification of the tax assessment based on a due process violation and recognized the treasury authority's right to cure the due process violation by starting a new tax audit. The treasury authority in Mexico is appealing the latest judgment from the Mexican Federal Tax Court. Although the tax appeals process has not concluded, we believe our tax position is properly reported in accordance with applicable tax laws and regulations in Mexico and intend to vigorously defend our position through the tax appeals process. We are also under examination by various tax authorities in other countries, and certain foreign jurisdictions have challenged the amounts of taxes due for certain tax periods. These audits are in various stages of completion. We fully cooperate with all audits, but defend existing positions vigorously. We evaluate the potential exposure associated with various filing positions and record a liability for uncertain tax positions as circumstances warrant. Although we believe all tax positions are reasonable and properly reported in accordance with applicable tax laws and regulations in effect during the periods involved, the final determination of tax audits and any related litigation could be materially different than that which is reflected in historical income tax provisions and accruals. A reconciliation of the beginning and ending provision for uncertain tax positions is as follows: (In thousands) 2019 2018 2017 Balance at January 1 $ 223 $ 257 $ 665 Additions (reductions) for tax positions of prior years 68 (3 ) (399 ) Additions (reductions) for tax positions of current year — — — Reductions for settlements with tax authorities — — — Reductions for lapse of statute of limitations — (31 ) (9 ) Balance at December 31 $ 291 $ 223 $ 257 Approximately $0.3 million of unrecognized tax benefits at December 31, 2019 , if recognized, would favorably impact the effective tax rate. We recognize accrued interest and penalties related to uncertain tax positions in operating expenses. The amount of interest and penalties was immaterial for all periods presented.

Capital Stock

Capital Stock	12 Months Ended
	Dec. 31, 2019
Equity [Abstract]
Capital Stock	Capital Stock Common Stock Changes in outstanding common stock were as follows: (In thousands of shares) 2019 2018 2017 Outstanding, beginning of year 106,363 104,572 99,843 Shares issued for exercise of options 281 603 416 Shares issued for time vested restricted stock (net of forfeitures) 53 1,188 952 Shares issued for acquisition — — 3,361 Outstanding, end of year 106,697 106,363 104,572 Outstanding shares of common stock include shares held as treasury stock totaling 16,958,418 , 15,530,952 and 15,366,504 as of December 31, 2019 , 2018 and 2017 , respectively. Preferred Stock We are authorized to issue up to 1,000,000 shares of preferred stock, $0.01 par value. There were no outstanding shares of preferred stock as of December 31, 2019 , 2018 or 2017 . Treasury Stock During 2019 , 2018 and 2017 , we repurchased 381,041 , 362,190 and 415,418 shares, respectively, for an aggregate price of $2.7 million , $3.9 million and $3.2 million , respectively, representing employee shares surrendered in lieu of taxes under vesting of restricted stock awards. All of the shares repurchased are held as treasury stock. During 2019 , 2018 and 2017 , we reissued 1,491,408 , 197,742 and 210,964 shares of treasury stock pursuant to various stock plans. Repurchase Program In November 2018, our Board of Directors authorized changes to our securities repurchase program. These changes increased the amount remaining under the repurchase program from $33.5 million to $100 million , available for repurchases of any combination of our common stock and our 2021 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 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. During 2019 , we repurchased an aggregate of 2,537,833 shares of our common stock under our Board authorized repurchase program for a total cost of $19.0 million . There were no shares repurchased under the program during 2018 or 2017 . As of December 31, 2019 , we had $81.0 million remaining under the program.

Earnings Per Share

Earnings Per Share	12 Months Ended
	Dec. 31, 2019
Earnings Per Share [Abstract]
Earnings Per Share	Earnings Per Share The following table presents the reconciliation of the numerator and denominator for calculating income (loss) from continuing operations per share: Year Ended December 31, (In thousands, except per share data) 2019 2018 2017 Numerator Income (loss) from continuing operations - basic and diluted $ (12,946 ) $ 32,281 $ 11,219 Denominator Weighted average common shares outstanding - basic 89,782 89,996 85,421 Dilutive effect of stock options and restricted stock awards — 2,385 2,554 Dilutive effect of 2021 Convertible Notes — 544 — Weighted average common shares outstanding - diluted 89,782 92,925 87,975 Income (loss) from continuing operations per common share Basic $ (0.14 ) $ 0.36 $ 0.13 Diluted $ (0.14 ) $ 0.35 $ 0.13 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: Year Ended December 31, (In thousands) 2019 2018 2017 Stock options and restricted stock awards 5,312 1,495 7,419 2017 Convertible Notes — — 5,702 The 2021 Convertible Notes 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 2021 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 2021 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, are assumed to be settled with shares of common stock for purposes of computing diluted net income per share.

Stock-Based Compensation and Ot

Stock-Based Compensation and Other Benefit Plans	12 Months Ended
	Dec. 31, 2019
Share-based Payment Arrangement [Abstract]
Stock-Based Compensation and Other Benefit Plans	Stock-Based Compensation and Other Benefit Plans The following describes stockholder approved plans utilized by us for the issuance of stock-based awards. 2014 Non-Employee Directors’ Restricted Stock Plan In May 2014, our stockholders approved the 2014 Non-Employee Directors’ Restricted Stock Plan (“2014 Director Plan”) which authorizes grants of restricted stock to non-employee directors based on a pre-determined dollar amount on the date of each annual meeting of stockholders. The pre-determined dollar amount for determining the number of restricted shares granted is subject to change by the Board of Directors or its committee but was initially set at $150,000 for each non-employee director, except for the Chairman of the Board who will receive an annual grant of restricted shares equal to $170,000 . Each restricted share granted to a non-employee director vests in full on the earlier of the day prior to the next annual meeting of stockholders following the grant date or the first anniversary of the grant. During 2019 , non-employee directors received shares of restricted stock totaling 104,900 shares at a weighted average grant-date fair value of $7.34 per share. The maximum number of shares of common stock issuable under the 2014 Director Plan is 1,000,000 leaving 313,780 shares available for grant as of December 31, 2019 . 2015 Employee Equity Incentive Plan In May 2015, our stockholders approved the 2015 Employee Equity Incentive Plan (“2015 Plan”) pursuant to which the Compensation Committee of our Board of Directors (“Compensation Committee”) may grant to key employees, including executive officers and other corporate and divisional employees, a variety of forms of equity-based compensation, including options to purchase shares of common stock, shares of restricted common stock, restricted stock units, stock appreciation rights, other stock-based awards, and performance-based awards. Our stockholders subsequently approved amendments to the 2015 Plan which increased the number of shares authorized for issuance to 12,300,000 shares and removed the fungible share counting provision. At December 31, 2019 , 3,381,983 shares remained available for award under the 2015 Plan. In June 2017, our Board of Directors approved the Long-Term Cash Incentive Plan (“Cash Plan”), a sub-plan to the 2015 Plan, pursuant to which the Compensation Committee may grant time-based cash awards or performance-based cash awards to key employees, including executive officers and other corporate and divisional employees, to provide an opportunity for employees to receive a cash payment upon either completion of a service period or achievement of predetermined performance criteria at the end of a performance period. During 2018, the Compensation Committee modified certain outstanding stock-based and other incentive awards in connection with the retirement of our former Senior Vice President, General Counsel and Chief Administrative Officer. As a result of these modifications, we recognized a charge of $1.5 million in the third quarter of 2018. During 2019, the Compensation Committee modified our retirement policy applicable to cash and equity awards granted to include our Chief Executive Officer and those officers who report to our Chief Executive Officer, who were previously excluded from the retirement policy. In addition, the Compensation Committee also modified the retirement policy for certain vested stock options that remain outstanding to extend the exercise period available following the qualifying retirement of eligible employees. As a result of these modifications, we recognized a charge of $4.0 million in the first quarter of 2019. This charge primarily reflects the acceleration of expense, as well as the incremental value associated with modifications to extend the exercise period of outstanding options, for previously-granted awards for retirement eligible executive officers. Activity under each of these programs is described below. Stock Options Stock options granted by the Compensation Committee are granted with a three year vesting period and a term of ten years . There have been no options granted since 2016. The following table summarizes activity for our outstanding stock options for the year ended December 31, 2019 : Stock Options Shares Weighted- Weighted- Aggregate Outstanding at beginning of period 3,311,726 $ 7.13 Granted — — Exercised (334,395 ) 3.93 Expired or canceled (135,272 ) 9.98 Outstanding at end of period 2,842,059 $ 7.37 3.89 $ 2,177 Vested or expected to vest at end of period 2,842,059 $ 7.37 3.89 $ 2,177 Options exercisable at end of period 2,842,059 $ 7.37 3.89 $ 2,177 The total intrinsic value of options exercised was $1.6 million , $2.3 million , and $1.1 million for the years ended December 31, 2019 , 2018 and 2017 , while cash from option exercises totaled $1.3 million , $3.9 million , and $2.6 million , respectively. Total compensation cost recognized for stock options during the years ended December 31, 2019 , 2018 and 2017 was $1.3 million , $1.5 million and $1.7 million , respectively. For the years ended December 31, 2019 , 2018 and 2017 , we recognized tax benefits resulting from the exercise of stock options totaling $0.3 million , $0.5 million and $0.3 million , respectively. Performance-Based Restricted Stock Units In 2016, performance-based restricted stock units were awarded to executive officers and were to be settled in shares of common stock based on the relative ranking of our total shareholder return (“TSR”) as compared to the TSR of our designated peer group over a three -year period. The ending TSR price is equal to the average closing price of our shares over the last 30-calendar days of the performance period. There have been no performance-based restricted stock units granted since 2016. The following table summarizes activity for outstanding performance-based restricted stock units for the year-ended December 31, 2019 : Nonvested Performance-Based Restricted Stock Units Shares Weighted-Average Outstanding at beginning of period 230,790 $ 5.18 Granted — — Vested (230,790 ) 5.18 Forfeited — — Outstanding at the end of period — $ — Total compensation cost recognized for performance-based restricted stock units was $0.1 million , $0.8 million and $1.0 million for the years ended December 31, 2019 , 2018 and 2017 respectively. During the year ended December 31, 2019 , the total fair value of performance-based restricted stock units vested was $2.4 million . Restricted Stock Awards and Units Time-vested restricted stock awards and restricted stock units are periodically granted to key employees, including grants for employment inducements, as well as to members of our Board of Directors. Employee awards provide for vesting periods ranging from three to four years . Non-employee director grants vest in full on the earlier of the day prior to the next annual meeting of stockholders following the grant date or the first anniversary of the grant. Upon vesting of these grants, shares are issued to award recipients. The following tables summarize the activity for our outstanding time-vested restricted stock awards and restricted stock units for the year ended December 31, 2019 : Nonvested Restricted Stock Awards (Time-Vesting) Shares Weighted-Average Nonvested at January 1, 2019 180,578 $ 9.56 Granted 104,900 7.34 Vested (105,578 ) 10.49 Forfeited — — Nonvested at December 31, 2019 179,900 $ 7.72 Nonvested Restricted Stock Units (Time-Vesting) Shares Weighted-Average Nonvested at January 1, 2019 1,797,538 $ 8.33 Granted 1,351,916 7.24 Vested (903,254 ) 6.97 Forfeited (153,031 ) 8.06 Nonvested at December 31, 2019 2,093,169 $ 8.24 Total compensation cost recognized for restricted stock awards and restricted stock units was $9.8 million , $7.8 million and $8.0 million for the years ended December 31, 2019 , 2018 and 2017 , respectively. Total unrecognized compensation cost at December 31, 2019 related to restricted stock awards and restricted stock units was approximately $10.4 million which is expected to be recognized over the next 2.2 years . During the years ended December 31, 2019 , 2018 and 2017 , the total fair value of shares vested was $7.2 million , $11.6 million and $10.4 million , respectively. For the years ended December 31, 2019 , 2018 and 2017 , we recognized tax benefits resulting from the vesting of restricted stock awards and units of $1.9 million , $2.8 million and $1.9 million , respectively. Cash-Based Awards The Compensation Committee also approved the issuance of cash-based awards during 2019, 2018 and 2017. The 2019 awards included a target amount of $2.3 million of performance-based cash awards. The 2018 awards included $1.3 million of time-based cash awards and a target amount of $1.3 million of performance-based cash awards. The 2017 awards included $5.3 million of time-based cash awards and a target amount of $1.3 million of performance-based cash awards. The time-based cash awards were granted to executive officers and other key employees and primarily vest in equal installments over a three -year period. The performance-based cash awards were granted to executive officers and are to be paid based on the relative ranking of our TSR as compared to the TSR of our designated peer group. The performance period began June 1, 2019 and ends May 31, 2022 for the 2019 awards, began June 1, 2018 and ends May 31, 2021 for the 2018 awards, and began June 1, 2017 and ends May 31, 2020 for the 2017 awards. The ending TSR price is equal to the average closing price of our shares over the last 30-calendar days of the performance period. The cash payout for each executive ranges from 0% to 200% of target for the 2019 awards, and 0% to 150% of target for the 2018 and 2017 awards. The performance-based cash awards are accrued as a liability award over the performance period based on the estimated fair value. The fair value of the performance-based cash awards is remeasured each period using a Monte-Carlo valuation model with changes in fair value recognized in the consolidated statement of operations. As of December 31, 2019 and 2018 , the total liability for cash-based awards was $4.1 million and $3.0 million , respectively. Defined Contribution Plan Substantially all of our U.S. employees are covered by a defined contribution plan (“401(k) Plan”). Employees may voluntarily contribute up to 50% of compensation, as defined in the 401(k) Plan. Participants’ contributions, up to 3% of compensation, are matched 100% by us, and the participants’ contributions, from 3% to 6% of compensation, are matched 50% by us. Under the 401(k) Plan, our cash contributions were $4.3 million , $3.9 million and $1.4 million for 2019 , 2018 and 2017 , respectively. In connection with the cost reduction programs implemented in early 2016, we temporarily eliminated our 401(k) matching contribution beginning in March 2016, and this temporary elimination was lifted in the second quarter of 2017.

Segment and Related Information

Segment and Related Information	12 Months Ended
	Dec. 31, 2019
Segment Reporting [Abstract]
Segment and Related Information	Segment and Related Information We operate our business through two reportable segments: Fluids Systems and Mats and Integrated Services. All intercompany revenues and related profits have been eliminated. Fluids Systems — Our Fluids Systems segment provides customized drilling, completion, and stimulation fluids solutions to E&P customers primarily in North America, and Europe, the Middle East and Africa (“EMEA”), as well as certain countries in Asia Pacific and Latin America. We offer customized solutions for highly technical drilling projects involving complex subsurface conditions, such as horizontal, directional, geologically deep or drilling in deep water. These projects require high levels of monitoring and technical support of the fluids system during the drilling process. We also have industrial mineral grinding operations for barite, a critical raw material in drilling fluids products, which serve to support our activity in the North American drilling fluids market. We use the resulting products in our drilling fluids business, and also sell them to third party users, including other drilling fluids companies. We also sell a variety of other minerals, principally to third party industrial (non-oil and natural gas) markets. Mats and Integrated Services — Our Mats and Integrated Services segment provides composite mat rentals utilized for temporary worksite access, along with related site construction and services to customers in various markets including E&P, electrical transmission & distribution, pipeline, solar, petrochemical, and construction industries across North America and Europe. We also sell composite mats to customers around the world. We manufacture our DURA-BASE ® Advanced Composite Mats for use in our rental operations as well as for third-party sales. Our matting systems provide environmental protection and ensure all-weather access to sites with unstable soil conditions. The November 2017 acquisition of WSG expanded our range of site construction and related services we offer our customers across the U.S. to include a variety of complementary services to our composite matting systems, including access road construction, site planning and preparation, environmental protection, fluids and spill containment, erosion control, and site restoration services. Summarized financial information concerning our reportable segments is shown in the following tables: Year Ended December 31, (In thousands) 2019 2018 2017 Revenues Fluids systems $ 620,317 $ 715,813 $ 615,803 Mats and integrated services 199,802 230,735 131,960 Total revenues $ 820,119 $ 946,548 $ 747,763 Depreciation and amortization Fluids systems $ 21,202 $ 20,922 $ 21,566 Mats and integrated Services 21,763 21,321 14,991 Corporate office 4,179 3,656 3,200 Total depreciation and amortization $ 47,144 $ 45,899 $ 39,757 Operating income (loss) Fluids systems $ 3,814 $ 40,337 $ 27,580 Mats and integrated services 47,466 60,604 40,491 Corporate office (40,885 ) (37,383 ) (36,635 ) Total operating income (loss) $ 10,395 $ 63,558 $ 31,436 Segment assets Fluids systems $ 593,758 $ 617,615 $ 611,455 Mats and integrated services 265,786 270,248 260,931 Corporate office 40,535 27,991 30,330 Total segment assets $ 900,079 $ 915,854 $ 902,716 Capital expenditures Fluids Systems $ 18,416 $ 15,356 $ 17,589 Mats and Integrated Services 23,535 27,043 11,956 Corporate office 2,855 2,742 1,826 Total capital expenditures $ 44,806 $ 45,141 $ 31,371 Fluids Systems operating income for 2019 includes an $11.4 million non-cash impairment of goodwill and a total of $7.3 million of charges associated with facility closures and related exit costs, inventory write-downs, and severance costs, as well as the modification of the Company’s retirement policy. Corporate office operating loss for 2019 includes $3.4 million in charges associated with the February 2019 retirement policy modification. The following table presents further disaggregated revenues for the Fluids Systems segment: Year Ended December 31, (In thousands) 2019 2018 2017 United States $ 395,618 $ 410,410 $ 341,075 Canada 31,635 66,416 54,322 Total North America 427,253 476,826 395,397 EMEA 172,263 192,537 179,360 Asia Pacific 15,273 17,733 4,081 Latin America 5,528 28,717 36,965 Total International 193,064 238,987 220,406 Total Fluids Systems revenues $ 620,317 $ 715,813 $ 615,803 The following table presents further disaggregated revenues for the Mats and Integrated Services segment: Year Ended December 31, (In thousands) 2019 2018 2017 Service revenues $ 73,130 $ 93,056 $ 34,943 Rental revenues 70,207 81,784 61,124 Product sales revenues 56,465 55,895 35,893 Total Mats and Integrated Services revenues $ 199,802 $ 230,735 $ 131,960 The Mats and Integrated Services segment includes the impact of the WSG acquisition completed in November 2017. The following table sets forth geographic information for all of our operations. Revenues by geographic location are determined based on the operating location from which services are rendered or products are sold. Long-lived assets include property, plant and equipment and other long-term assets based on the country in which the assets are located. Year Ended December 31, (In thousands) 2019 2018 2017 Revenues United States $ 578,698 $ 626,656 $ 460,872 Canada 37,496 67,374 55,600 Algeria 60,010 81,508 87,975 All Other EMEA 123,114 124,510 102,247 Asia Pacific 15,273 17,733 4,081 Latin America 5,528 28,767 36,988 Total revenues $ 820,119 $ 946,548 $ 747,763 Long-lived assets United States $ 365,185 $ 338,475 $ 337,190 Canada 2,129 3,284 3,993 EMEA 46,447 41,774 46,269 Asia Pacific 2,862 2,898 3,120 Latin America 1,047 1,595 2,354 Total long-lived assets $ 417,670 $ 388,026 $ 392,926 For 2019 , 2018 and 2017 , no single customer accounted for more than 10% of our consolidated revenues.

Supplemental Cash Flow and Othe

Supplemental Cash Flow and Other Information	12 Months Ended
	Dec. 31, 2019
Supplemental Cash Flow Elements [Abstract]
Supplemental Cash Flow and Other Information	Supplemental Cash Flow and Other Information Supplemental disclosures to the statements of cash flows are presented below: (in thousands) 2019 2018 2017 Cash paid (received) for: Income taxes (net of refunds) $ 12,165 $ 15,627 $ (20,396 ) Interest $ 8,718 $ 8,741 $ 8,718 Cash, cash equivalents, and restricted cash in the consolidated statements of cash flows consisted of the following: (in thousands) 2019 2018 2017 Cash and cash equivalents $ 48,672 $ 56,118 $ 56,352 Restricted cash (included in other current assets) 8,191 8,148 9,108 Cash, cash equivalents, and restricted cash $ 56,863 $ 64,266 $ 65,460 Accounts payable and accrued liabilities at December 31, 2019 , 2018 , and 2017 , included accruals for capital expenditures of $1.8 million , $4.2 million , and $2.7 million , respectively. Accrued liabilities at December 31, 2019 and 2018 included accruals for employee incentives and other compensation related expenses of $21.6 million and $28.9 million , respectively.

Discontinued Operations

Discontinued Operations	12 Months Ended
	Dec. 31, 2019
Discontinued Operations and Disposal Groups [Abstract]
Discontinued Operations	Discontinued Operations Following the sale of our Environmental Services business in March 2014, the buyer asserted that we had breached certain representations and warranties contained in the sale agreement. The disputed matter went to trial in 2017 and following commencement of the trial, we reached a settlement agreement with the buyer to effectively reduce the sales price by $22.0 million . The impact of this settlement resulted in a charge to discontinued operations of $22.0 million ( $17.4 million net of tax) in 2017 to reduce the previously recognized gain from the sale of the Environmental Services business. See further discussion of the buyer’s claims and related litigation in Note 16 . Summarized results of operations from discontinued operations are as follows: (In thousands) 2017 Loss from disposal of discontinued operations before income taxes $ 21,983 Loss from disposal of discontinued operations, net of tax $ 17,367

Commitments and Contingencies

Commitments and Contingencies	12 Months Ended
	Dec. 31, 2019
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. During the third quarter of 2018 and subsequently, we have 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 December 31, 2019, there are open claims with 19 plaintiffs seeking a total of approximately $1.5 million . While no trial date has been set for the matter at this time, we have been advised by our insurer that these claims are insured under our general liability insurance program. While this event and related claims are covered by our property, business interruption, and general liability insurance programs, these programs contain self-insured retentions, which remain our financial obligations. During 2018, we incurred fire-related costs of $4.8 million , which included $1.9 million for inventory and property, plant and equipment, $2.1 million in property-related cleanup and other costs, and $0.8 million relating to our self-insured retention for third-party claims. Based on the provisions of our insurance policies and initial insurance claims filed, we estimated $4.0 million in expected insurance recoveries and recognized a charge of $0.8 million in other operating (income) loss, net, in the third quarter of 2018. The insurance receivable balance included in other receivables was $0.3 million and $0.6 million as of December 31, 2019 and 2018 , respectively. As of December 31, 2019 , the claims related to the fire under our property, business interruption, and general liability insurance programs have not been finalized. Escrow Claims Related to Sale of Environmental Services Business Under the terms of the March 2014 sale of our previous Environmental Services business to Ecoserv, LLC (“Ecoserv”), $8.0 million of the sales price was withheld and placed in an escrow account to satisfy claims for possible breaches of representations and warranties contained in the purchase/sale agreement. In December 2014, we received a letter from Ecoserv asserting that we had breached certain representations and warranties contained in the purchase/sale agreement, including failing to disclose operational problems and service work performed on injection/disposal wells and increased barge rental costs. The letter indicated that Ecoserv expected the damages associated with these claims to exceed the escrow amount. In July 2015 we filed an action against Ecoserv in state district court in Harris County, Texas, seeking release of the escrow funds. Thereafter, Ecoserv filed a counterclaim seeking recovery in excess of the escrow funds based on the alleged breach of representations and covenants in the purchase/sale agreement. Ecoserv also alleged that we committed fraud in connection with the March 2014 transaction. Following commencement of the trial in December 2017, we reached a settlement agreement with Ecoserv in the first quarter of 2018, under which Ecoserv received $22.0 million in cash, effectively reducing the net sales price of the Environmental Services business by such amount in exchange for dismissal of the pending claims in the lawsuit, and release of any future claims related to the March 2014 transaction. As a result of the settlement, we recognized a charge to discontinued operations in the fourth quarter of 2017 for $22.0 million ( $17.4 million net of tax) to reduce the previously recognized gain from the sale of the Environmental Services business. The reduction in sales price was funded in the first quarter of 2018 with a cash payment of $14.0 million and release of the $8.0 million that had been held in escrow since the March 2014 transaction. In March 2018, the lawsuit was dismissed with prejudice. Litigation expenses related to this matter were included in corporate office expenses in operating income. Other We do not have any special purpose entities. At December 31, 2019 , we had $52.5 million in outstanding letters of credit, performance bonds, and other guarantees for which certain of the letters of credit are collateralized by $8.2 million in restricted cash. We also enter into normal short-term operating leases for office and warehouse space, as well as rolling stock and other pieces of operating equipment. None of these off-balance sheet arrangements either had, or is expected to have, a material effect on our financial statements. We are self-insured for health claims, subject to certain “stop loss” insurance policies. Claims in excess of $250,000 per incident are insured by third-party insurers. Based on historical experience, we had accrued liabilities of $0.8 million for unpaid claims incurred at both December 31, 2019 and 2018 . Substantially all of these estimated claims are expected to be paid within six months of their occurrence. In addition, we are self-insured for certain workers’ compensation, auto, and general liability claims up to a certain policy limit. Claims in excess of $750,000 are insured by third-party reinsurers. Based on historical experience, we had accrued liabilities of $1.9 million and $2.2 million for the uninsured portion of claims as of December 31, 2019 and 2018 , respectively. We also maintain accrued liabilities for asset retirement obligations, which represent obligations associated with the retirement of tangible long-lived assets that result from the normal operation of the long-lived asset. Our asset retirement obligations primarily relate to required expenditures associated with owned and leased facilities. Upon settlement of the liability, a gain or loss for any difference between the settlement amount and the liability recorded is recognized. We had accrued asset retirement obligations of $1.2 million and $1.1 million as of December 31, 2019 and 2018 , respectively.

Supplemental Selected Quarterly

Supplemental Selected Quarterly Financial Data (Unaudited)	12 Months Ended
	Dec. 31, 2019
Quarterly Financial Information Disclosure [Abstract]
Supplemental Selected Quarterly Financial Data (Unaudited)	Supplemental Selected Quarterly Financial Data (Unaudited) (In thousands, except per share amounts) First Second Third Fourth Fiscal Year 2019 Revenues $ 211,473 $ 216,412 $ 202,763 $ 189,471 Operating income (loss) 5,679 10,914 6,288 (12,486 ) Income (loss) from continuing operations 1,282 4,306 (1,441 ) (17,093 ) Net income (loss) 1,282 4,306 (1,441 ) (17,093 ) Income per common share - basic: Income from continuing operations $ 0.01 $ 0.05 $ (0.02 ) $ (0.19 ) Net income $ 0.01 $ 0.05 $ (0.02 ) $ (0.19 ) Income per common share - diluted: Income from continuing operations $ 0.01 $ 0.05 $ (0.02 ) $ (0.19 ) Net income $ 0.01 $ 0.05 $ (0.02 ) $ (0.19 ) Fiscal Year 2018 Revenues $ 227,293 $ 236,262 $ 235,329 $ 247,664 Operating income 13,838 19,143 10,054 20,523 Income from continuing operations 7,222 10,846 3,644 10,569 Net income 7,222 10,846 3,644 10,569 Income per common share - basic: Income from continuing operations $ 0.08 $ 0.12 $ 0.04 $ 0.12 Net income $ 0.08 $ 0.12 $ 0.04 $ 0.12 Income per common share - diluted: Income from continuing operations $ 0.08 $ 0.12 $ 0.04 $ 0.11 Net income $ 0.08 $ 0.12 $ 0.04 $ 0.11 Operating income for the first quarter of 2019 includes $4.0 million in charges associated with the February 2019 retirement policy modification and $0.5 million related to severance costs. Operating loss for the fourth quarter of 2019 includes an $11.4 million non-cash impairment of goodwill and a total of $6.7 million of charges associated with facility closures and related exit costs, inventory write-downs, and severance costs.

Significant Accounting Policies

Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2019
Accounting Policies [Abstract]
Organization and Principles of Consolidation	Organization and Principles of Consolidation. Newpark Resources, Inc. was organized in 1932 as a Nevada corporation. In 1991, we changed our state of incorporation to Delaware. The consolidated financial statements include our company and our wholly-owned subsidiaries (“we,” “our,” or “us”). All intercompany transactions are eliminated in consolidation. We are a geographically diversified supplier providing products, as well as rentals and services primarily to the oil and natural gas exploration and production (“E&P”) industry. We operate our business through two
Use of Estimates and Market Risks	Use of Estimates and Market Risks . The preparation of financial statements in conformity with accounting principles generally accepted in the United States (“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. Estimates used in preparing our consolidated financial statements include, but are not limited to the following: allowances for doubtful accounts, reserves for self-insured retention under insurance programs, estimated performance and values associated with employee incentive programs, fair values used for impairments of long-lived assets, including goodwill and other intangibles, and valuation allowances for deferred tax assets.
Cash Equivalents	Cash Equivalents. All highly liquid investments with a remaining maturity of three months or less at the date of acquisition are classified as cash equivalents.
Restricted Cash	Restricted Cash. Cash that is restricted as to withdrawal or usage is recognized as restricted cash and is included in other current assets in the consolidated balance sheets.
Allowance for Doubtful Accounts	Allowance for Doubtful Accounts. Reserves for uncollectible accounts receivable are determined on a specific identification basis when we believe that the required payment of specific amounts owed to us is not probable. The majority of our revenues are from mid-sized and international oil companies as well as government-owned or government-controlled oil companies, and we have receivables in several foreign jurisdictions. Changes in the financial condition of our customers or political changes in foreign jurisdictions could cause our customers to be unable to repay these receivables, resulting in additional allowances.
Inventories	Inventories. Inventories are stated at the lower of cost (principally average cost) or net realizable value. Certain conversion costs associated with the acquisition, production, blending, and storage of inventory in our Fluids Systems segment as well as in the manufacturing operations in the Mats and Integrated Services segment are capitalized as a component of the carrying value of the inventory and expensed as a component of cost of revenues as the products are sold. Reserves for inventory obsolescence are determined based on the fair value of the inventory using factors such as our historical usage of inventory on-hand, future expectations related to our customers’ needs, market conditions, and the development of new products.
Property, Plant and Equipment	Property, Plant and Equipment. Property, plant and equipment are recorded at cost. Additions and improvements that extend the useful life of an asset are capitalized. We capitalize interest costs on significant capital projects. Maintenance and repairs are expensed as incurred. Sales and disposals of property, plant and equipment are removed at carrying cost less accumulated depreciation with any resulting gain or loss reflected in earnings. Depreciation is provided on property, plant and equipment, including finance lease assets, primarily utilizing the straight-line method over the following estimated useful service lives or lease term: Computer hardware and office equipment 3-5 years Computer software 3-10 years Autos and light trucks 5-7 years Furniture, fixtures, and trailers 7-10 years Composite mats (rental fleet) 7-12 years Machinery and heavy equipment 10-15 years Owned buildings 20-39 years Leasehold improvements Lease term, including reasonably assured renewal periods
Goodwill and Other Intangible Assets	Goodwill and Other Intangible Assets. Goodwill represents the excess of the purchase price of acquisitions over the fair value of the net identifiable assets acquired in business combinations. Goodwill and other intangible assets with indefinite lives are not amortized. Intangible assets with finite useful lives are amortized either on a straight-line basis over the asset’s estimated useful life or on a basis that reflects the pattern in which the economic benefits of the asset are realized. Any period costs of maintaining intangible assets are expensed as incurred.
Impairment of Long-Lived Assets	Impairment of Long-Lived Assets. Goodwill and other indefinite-lived intangible assets are tested for impairment annually as of November 1, or more frequently, if an indication of impairment exists. As part of our annual goodwill review we first perform a qualitative assessment based on company performance and future business outlook to determine if indicators of impairment exist. When there are qualitative indicators of impairment, we use an impairment test which includes a comparison of the carrying value of net assets of our reporting units, including goodwill, with their estimated fair values, which we estimate using a combination of a market multiple and discounted cash flow approach (classified within level 3 of the fair value hierarchy). We also compare the aggregate fair values of our reporting units with our market capitalization. If the carrying value exceeds the estimated fair value, an impairment charge is recorded in the period in which such review is performed. We identify our reporting units based on our analysis of several factors, including our operating segment structure, evaluation of the economic characteristics of our geographic regions within each of our operating segments, and the extent to which our business units share assets and other resources. 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. In estimating expected cash flows, we use a probability-weighted approach. Should the review indicate that the carrying value is not fully recoverable, the amount of impairment loss is determined by comparing the carrying value to the estimated fair value.
Insurance	Insurance. We maintain reserves for estimated future payments associated with our self-insured employee healthcare programs, as well as the self-insured retention exposures under our general liability, auto liability, and workers compensation insurance policies. Our reserves are determined based on historical experience under these programs, including estimated development of known claims and estimated incurred-but-not-reported claims.
Treasury Stock	Treasury Stock. Treasury stock is carried at cost, which includes the entire cost of the acquired stock.
Revenue Recognition	Revenue Recognition. In 2014, the Financial Accounting Standards Board (“FASB”) amended the guidance for revenue from contracts with customers. See "New Accounting Pronouncements" below for details about the amended guidance and about our adoption. Results for reporting periods beginning after December 31, 2017 are presented under the new guidance, while prior period amounts were not adjusted and continue to be reported in accordance with previous guidance. The adoption of this new guidance primarily affected the timing of revenue recognition for fluid system additive products provided to customers in the delivery of an integrated fluid system in our U.S. drilling fluids business. Under previous guidance, we recognized revenue for these products upon shipment of materials and passage of title, with a reserve for estimated product returns. Under the new guidance, we recognize revenue for these products when they are utilized, which generally occurs at the time of consumption by the customer. The following provides a summary of our significant accounting policies for revenue recognition under the new guidance for periods beginning after December 31, 2017. Revenue Recognition - Fluids Systems. Revenues for fluid system additive products and engineering services, when provided to customers in the delivery of an integrated fluid system, are recognized as product sales revenues when utilized by the customer. Revenues for formulated liquid systems are recognized as product sales revenues when utilized or lost downhole while drilling. Revenues for equipment rentals and other services provided to customers that are ancillary to the fluid system product delivery are recognized in rental and service revenues when the services are performed. For direct sales of fluid system products, revenues are recognized when control passes to the customer, which is generally upon shipment of materials. Revenue Recognition - Mats and Integrated Services. Revenues for rentals and services are generated from both fixed-price and unit-priced contracts, which are generally short-term in duration. The activities under these contracts include the installation and rental of matting systems for a period of time and services such as access road construction, site planning and preparation, environmental protection, fluids and spill containment, erosion control, and site restoration services. Rental revenues are recognized over the rental term and service revenues are recognized when the specified services are performed. Revenues from any subsequent extensions to the rental agreements are recognized over the extension period. Revenues from the direct sale of mats are recognized when control passes to the customer, which is upon shipment or delivery, depending on the terms of the underlying sales contract. For both segments, the amount of revenue we recognize for products sold and services performed reflects the consideration to which we expect to be entitled in exchange for such goods or services, which generally reflects the amount we have the right to invoice based on agreed upon unit rates. While billing requirements vary, many of our customer contracts require that billings occur periodically or at the completion of specified activities, even though our performance and right to consideration occurs throughout the contract. As such, we recognize revenue as performance is completed in the amount to which we have the right to invoice. We do not disclose the value of our unsatisfied performance obligations for (i) contracts with an original expected length of one year or less and (ii) contracts for which we recognize revenue for the amount to which we have the right to invoice for products sold and services performed. Shipping and handling costs are reflected in cost of revenues, and all reimbursements by customers of shipping and handling costs are included in revenues.
Income Taxes	Income Taxes. We provide for deferred taxes using an asset and liability approach by measuring deferred tax assets and liabilities due to temporary differences existing at year end using currently enacted tax rates and laws that will be in effect when the differences are expected to reverse. We reduce deferred tax assets by a valuation allowance when, based on our estimates, it is more likely than not that a portion of those assets will not be realized in a future period. The estimates utilized in recognition of deferred tax assets are subject to revision, either up or down, in future periods based on new facts or circumstances. We present deferred tax assets and liabilities as noncurrent in the balance sheet based on an analysis of each taxpaying component within a jurisdiction. We evaluate uncertain tax positions and record a liability as circumstances warrant.
Share-Based Compensation	Share-Based Compensation. Share-based compensation cost is measured at the grant date based on the fair value of the award, net of an estimated forfeiture rate. We recognize these costs in the statement of operations using the straight-line method over the vesting term. Fair value at the grant date is determined using the Black-Scholes option-pricing model for stock options and using the Monte Carlo valuation model for performance-based restricted stock units.
Foreign Currency Translation	Foreign Currency Translation.
Fair Value Measurement	Fair Value Measurement. Fair value is measured as the price that would be received from selling an asset or paid to transfer a liability in an orderly transaction between market participants at a measurement date. We apply the following fair value hierarchy, which prioritizes the inputs used to measure fair value into three levels and bases the categorization within the hierarchy upon the lowest level of input that is available and significant to the fair value measurement: • Level 1: The use of quoted prices in active markets for identical financial instruments. • Level 2: The use of quoted prices for similar instruments in active markets or quoted prices for identical or similar instruments in markets that are not active or other inputs that are observable in the market or can be corroborated by observable market data. • Level 3: The use of significantly unobservable inputs that typically require the use of management’s estimates of assumptions that market participants would use in pricing.
New Accounting Pronouncements	New Accounting Pronouncements Standards Adopted in 2019 Leases. In 2016, the FASB amended the guidance related to the accounting for leases. The new guidance provides principles for the recognition, measurement, presentation, and disclosure of leases and requires lessees to recognize both assets and liabilities arising from finance and operating leases. The classification as either a finance or operating lease will determine whether lease expense is recognized based on an effective interest method basis or on a straight-line basis over the term of the lease, respectively. We adopted this new guidance as of January 1, 2019 using the modified retrospective transition method and recorded approximately $28.0 million of operating lease assets and liabilities as of January 1, 2019, with no cumulative effect adjustment to retained earnings. The new guidance had no impact on our consolidated statements of operations or cash flows. Results for reporting periods beginning after December 31, 2018 are presented under the new guidance, while prior period amounts were not adjusted and continue to be reported in accordance with previous guidance. As permitted under the transition guidance within the new standard, we elected to carry forward the historical lease identification and classification for existing leases upon adoption. We have also made an accounting policy election to not recognize leases with an initial term of 12 months or less in the consolidated balance sheets. See Note 8 for additional required disclosures. Standards Adopted in 2018 Revenue from Contracts with Customers. In 2014, the FASB amended the guidance for revenue from contracts with customers. The amendments are based on the principle that revenue should be recognized to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. We adopted this new guidance as of January 1, 2018 using the modified retrospective transition method, and recorded a net reduction of $2.3 million to opening retained earnings to reflect the cumulative effect of adoption for contracts not completed as of December 31, 2017. Results for reporting periods beginning after December 31, 2017 are presented under the new guidance, while prior period amounts were not adjusted and continue to be reported in accordance with previous guidance. The adoption of this new guidance primarily affected the timing of revenue recognition for fluid system additive products provided to customers in the delivery of an integrated fluid system in our U.S. drilling fluids business. There was no material impact on reported revenues for 2018 as a result of applying the new revenue recognition guidance. The adoption of this guidance also requires additional disclosures for disaggregated revenues, which are included in Note 13. See above for a summary of our significant accounting policies for revenue recognition under the new guidance for periods beginning after December 31, 2017. Accounting for Income Taxes: Intra-Entity Transfers of Assets Other Than Inventory. In 2016, the FASB amended the guidance related to the accounting for income tax consequences of intra-entity transfers of assets other than inventory. The guidance requires an entity to recognize the income tax consequences of an intra-entity transfer of an asset other than inventory when the transfer occurs, rather than the previous requirement to defer recognition of current and deferred income taxes for an intra-entity asset transfer until the asset had been sold to an outside party. This update does not change U.S. GAAP for the pre-tax effects of an intra-entity asset transfer or for an intra-entity transfer of inventory. We adopted this new guidance as of January 1, 2018 using the modified retrospective transition method, and recorded a net reduction of $4.5 million to opening retained earnings to reflect the cumulative effect of adoption for the current and deferred income tax consequences of an intra-entity sale of mats from the U.S. to the U.K. completed prior to 2018. Statement of Cash Flows. In 2016, the FASB issued new guidance that clarifies how certain cash receipts and cash payments are presented and classified in the statement of cash flows. This update provides guidance on eight specific cash flow issues. We adopted this new guidance as of January 1, 2018. The adoption of this new guidance had no impact on our historical financial statements or related disclosures. Standards Not Yet Adopted Credit Losses. In 2016, the 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. This guidance is effective for us in the first quarter of 2020. We will include incremental disclosures in our 2020 financial statements regarding our credit loss policies and related amounts. We have adopted the new guidance utilizing the modified retrospective transition method effective January 1, 2020. The cumulative effect adjustment to retained earnings upon adoption is not material.

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2019
Accounting Policies [Abstract]
Schedule of useful life for property, plant and equipment	Depreciation is provided on property, plant and equipment, including finance lease assets, primarily utilizing the straight-line method over the following estimated useful service lives or lease term: Computer hardware and office equipment 3-5 years Computer software 3-10 years Autos and light trucks 5-7 years Furniture, fixtures, and trailers 7-10 years Composite mats (rental fleet) 7-12 years Machinery and heavy equipment 10-15 years Owned buildings 20-39 years Leasehold improvements Lease term, including reasonably assured renewal periods

Business Combinations (Tables)

Business Combinations (Tables)	12 Months Ended
	Dec. 31, 2019
Business Combinations [Abstract]
Schedule of preliminary amounts recognized for assets acquired and liabilities assumed	The following table summarizes the amounts recognized for the assets acquired and liabilities assumed as of the October 8, 2019 acquisition date. (in thousands) Receivables 2,691 Intangible assets 8,268 Other assets 974 Total assets acquired 11,933 Deferred tax liabilities 1,197 Other liabilities 1,302 Total liabilities assumed 2,499 Net assets purchased 9,434 Goodwill 9,258 Net cash conveyed at closing $ 18,692

Inventories (Tables)

Inventories (Tables)	12 Months Ended
	Dec. 31, 2019
Inventory Disclosure [Abstract]
Schedule of inventories	Inventories consisted of the following at December 31: (In thousands) 2019 2018 Raw materials: Fluids systems $ 141,314 $ 148,737 Mats and integrated services 5,049 1,485 Total raw materials 146,363 150,222 Blended fluids systems components 39,542 38,088 Finished goods - mats 10,992 8,586 Total inventories $ 196,897 $ 196,896

Property, Plant and Equipment (

Property, Plant and Equipment (Tables)	12 Months Ended
	Dec. 31, 2019
Property, Plant and Equipment [Abstract]
Schedule of property, plant and equipment	Property, plant and equipment consisted of the following at December 31: (In thousands) 2019 2018 Land $ 11,869 $ 11,338 Buildings and improvements 130,895 131,128 Machinery and equipment 295,622 291,081 Computer hardware and software 40,880 35,730 Furniture and fixtures 5,921 5,725 Construction in progress 13,091 12,960 498,278 487,962 Less accumulated depreciation (259,205 ) (239,643 ) 239,073 248,319 Composite mats (rental fleet) 125,300 120,644 Less accumulated depreciation - composite mats (53,964 ) (52,670 ) 71,336 67,974 Property, plant and equipment, net $ 310,409 $ 316,293

Goodwill and Other Intangible_2

Goodwill and Other Intangible Assets (Tables)	12 Months Ended
	Dec. 31, 2019
Goodwill and Intangible Assets Disclosure [Abstract]
Changes in the carrying amount of goodwill	Changes in the carrying amount of goodwill by reportable segment are as follows: (In thousands) Fluids Mats and Total Balance at December 31, 2017 $ 1,782 $ 41,838 $ 43,620 Acquisition — 562 562 Effects of foreign currency (141 ) (209 ) (350 ) Balance at December 31, 2018 1,641 42,191 43,832 Acquisition 9,258 — 9,258 Impairment (11,422 ) — (11,422 ) Effects of foreign currency 523 141 664 Balance at December 31, 2019 $ — $ 42,332 $ 42,332
Other intangible assets	Other intangible assets consisted of the following: December 31, 2019 December 31, 2018 (In thousands) Gross Accumulated Other Gross Accumulated Other Technology related $ 20,222 $ (6,516 ) $ 13,706 $ 17,380 $ (5,509 ) $ 11,871 Customer related 33,697 (18,234 ) 15,463 40,662 (27,891 ) 12,771 Employment related — — — 1,845 (1,845 ) — Total amortizing intangible assets 53,919 (24,750 ) 29,169 59,887 (35,245 ) 24,642 Permits and licenses 508 — 508 518 — 518 Total indefinite-lived intangible assets 508 — 508 518 — 518 Total intangible assets $ 54,427 $ (24,750 ) $ 29,677 $ 60,405 $ (35,245 ) $ 25,160
Estimated future amortization expense	Estimated future amortization expense for the years ended December 31 is as follows: (In thousands) 2020 2021 2022 2023 2024 Thereafter Total Technology related $ 1,353 $ 1,298 $ 1,237 $ 1,068 $ 1,044 $ 7,706 $ 13,706 Customer related 1,416 996 783 663 1,458 10,147 15,463 Total future amortization expense $ 2,769 $ 2,294 $ 2,020 $ 1,731 $ 2,502 $ 17,853 $ 29,169

Financing Arrangements (Tables)

Financing Arrangements (Tables)	12 Months Ended
	Dec. 31, 2019
Debt Disclosure [Abstract]
Schedule of financing arrangements	Financing arrangements consisted of the following: December 31, 2019 December 31, 2018 (In thousands) Principal Amount Unamortized Discount and Debt Issuance Costs Total Debt Principal Amount Unamortized Discount and Debt Issuance Costs Total Debt 2021 Convertible Notes $ 100,000 $ (12,291 ) $ 87,709 $ 100,000 $ (17,752 ) $ 82,248 ABL Facility 65,000 — 65,000 76,300 — 76,300 Other debt 7,164 — 7,164 3,199 — 3,199 Total debt 172,164 (12,291 ) 159,873 179,499 (17,752 ) 161,747 Less: current portion (6,335 ) — (6,335 ) (2,522 ) — (2,522 ) Long-term debt $ 165,829 $ (12,291 ) $ 153,538 $ 176,977 $ (17,752 ) $ 159,225

Fair Value of Financial Instr_2

Fair Value of Financial Instruments and Concentrations of Credit Risk (Tables)	12 Months Ended
	Dec. 31, 2019
Fair Value Disclosures [Abstract]
Schedule of accounts receivable	Receivables consisted of the following at December 31: (In thousands) 2019 2018 Trade receivables: Gross trade receivables $ 207,554 $ 248,176 Allowance for doubtful accounts (6,007 ) (10,034 ) Net trade receivables 201,547 238,142 Income tax receivables 7,393 9,027 Other receivables 7,774 7,225 Total receivables, net $ 216,714 $ 254,394
Schedule of allowance for doubtful accounts	Changes in this allowance were as follows: (In thousands) 2019 2018 2017 Balance at beginning of year $ 10,034 $ 9,457 $ 8,849 Provision for doubtful accounts 1,792 2,849 1,481 Write-offs, net of recoveries (5,819 ) (2,272 ) (873 ) Balance at end of year $ 6,007 $ 10,034 $ 9,457

Leases (Tables)

Leases (Tables)	12 Months Ended
	Dec. 31, 2019
Leases [Abstract]
Schedule of leases	During 2019 , we entered into $12.1 million of new operating lease liabilities in exchange for leased assets. Lease Term and Discount Rate December 31, 2019 Weighted-average remaining lease term (years) Operating leases 8.5 Finance leases 3.7 Weighted-average discount rate Operating leases 4.8 % Finance leases 4.5 % Leases consisted of the following: (In thousands) Balance Sheet Classification December 31, 2019 Assets: Operating Operating lease assets $ 32,009 Finance Property, plant and equipment, net 1,135 Total lease assets $ 33,144 Liabilities: Current: Operating Accrued liabilities $ 6,105 Finance Current debt 287 Noncurrent: Operating Noncurrent operating lease liabilities $ 26,946 Finance Long-term debt, less current portion 829 Total lease liabilities $ 34,167
Maturity of lease liabilities, finance leases	The maturity of lease liabilities as of December 31, 2019 is as follows: (In thousands) Operating Leases Finance Leases Total 2020 $ 7,528 $ 330 $ 7,858 2021 5,932 329 6,261 2022 4,351 329 4,680 2023 3,199 221 3,420 2024 2,760 — 2,760 Thereafter 17,165 — 17,165 Total lease payments 40,935 1,209 42,144 Less: Interest 7,884 93 7,977 Present value of lease liabilities $ 33,051 $ 1,116 $ 34,167
Maturity of lease liabilities, operating leases	The maturity of lease liabilities as of December 31, 2019 is as follows: (In thousands) Operating Leases Finance Leases Total 2020 $ 7,528 $ 330 $ 7,858 2021 5,932 329 6,261 2022 4,351 329 4,680 2023 3,199 221 3,420 2024 2,760 — 2,760 Thereafter 17,165 — 17,165 Total lease payments 40,935 1,209 42,144 Less: Interest 7,884 93 7,977 Present value of lease liabilities $ 33,051 $ 1,116 $ 34,167
Maturity of lease liabilities, non-cancelable operating leases	Future minimum payments under capital leases were not significant. (In thousands) 2019 $ 9,112 2020 5,707 2021 4,630 2022 3,816 2023 3,144 Thereafter 4,507 $ 30,916

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Provision (benefit) for income taxes	The total provision (benefit) was allocated to the following components of income (loss): Year Ended December 31, (In thousands) 2019 2018 2017 Income (loss) from continuing operations $ 9,788 $ 14,997 $ 4,893 Loss from discontinued operations — — (4,616 ) Total provision for income taxes $ 9,788 $ 14,997 $ 277 The provision (benefit) for income taxes related to continuing operations was as follows: Year Ended December 31, (In thousands) 2019 2018 2017 Current: U.S. Federal $ 1,892 $ 805 $ (236 ) State 706 1,384 561 Foreign 11,440 12,572 10,301 Total current 14,038 14,761 10,626 Deferred: U.S. Federal (2,926 ) (331 ) (3,848 ) State 1,181 66 (796 ) Foreign (2,505 ) 501 (1,089 ) Total deferred (4,250 ) 236 (5,733 ) Total provision for income taxes $ 9,788 $ 14,997 $ 4,893
Income (loss) from continuing operations before income taxes	Income (loss) from continuing operations before income taxes was as follows: Year Ended December 31, (In thousands) 2019 2018 2017 U.S. $ (15,270 ) $ 4,084 $ (27,282 ) Foreign 12,112 43,194 43,394 Income (loss) from continuing operations before income taxes $ (3,158 ) $ 47,278 $ 16,112
Effective income tax rate	The effective income tax rate for continuing operations is reconciled to the statutory federal income tax rate as follows: Year Ended December 31, (In thousands) 2019 2018 2017 Income tax expense (benefit) at federal statutory rate $ (663 ) $ 9,929 $ 5,639 Nondeductible executive compensation 756 1,165 768 Nondeductible goodwill impairment 2,401 — — Other nondeductible expenses 1,506 1,216 1,368 Stock-based compensation (248 ) (786 ) 472 Different rates on earnings of foreign operations 463 912 (2,139 ) Dividend taxes on unremitted earnings 1,609 3,023 1,506 U.S. tax on foreign earnings 1,215 333 — Change in valuation allowance 1,272 (790 ) 240 State tax expense (benefit), net 430 1,298 (283 ) Net impact of Tax Act — (1,613 ) (3,387 ) Other items, net 1,047 310 709 Total provision for income taxes $ 9,788 $ 14,997 $ 4,893
Schedule of deferred tax assets and liabilities	tax income. Temporary differences and carryforwards which give rise to deferred tax assets and liabilities consisted of the following at December 31: (In thousands) 2019 2018 Deferred tax assets: Net operating losses $ 14,205 $ 14,054 Foreign tax credits 5,651 7,304 Accruals not currently deductible 4,928 3,209 Unrealized foreign exchange losses, net 3,837 3,575 Stock-based compensation 3,380 3,266 Capitalized inventory costs 1,611 1,972 Alternative minimum tax carryforwards 369 2,198 Other 6,709 6,631 Total deferred tax assets 40,690 42,209 Valuation allowance (23,962 ) (23,842 ) Total deferred tax assets, net of allowances 16,728 18,367 Deferred tax liabilities: Accelerated depreciation and amortization (28,703 ) (29,656 ) Tax on unremitted earnings (13,645 ) (16,174 ) Original issue discount on 2021 Convertible Notes (2,311 ) (3,347 ) Other (2,716 ) (2,160 ) Total deferred tax liabilities (47,375 ) (51,337 ) Total net deferred tax liabilities $ (30,647 ) $ (32,970 ) Noncurrent deferred tax assets $ 3,600 $ 4,516 Noncurrent deferred tax liabilities (34,247 ) (37,486 ) Net deferred tax liabilities $ (30,647 ) $ (32,970 )
Income tax contingencies	A reconciliation of the beginning and ending provision for uncertain tax positions is as follows: (In thousands) 2019 2018 2017 Balance at January 1 $ 223 $ 257 $ 665 Additions (reductions) for tax positions of prior years 68 (3 ) (399 ) Additions (reductions) for tax positions of current year — — — Reductions for settlements with tax authorities — — — Reductions for lapse of statute of limitations — (31 ) (9 ) Balance at December 31 $ 291 $ 223 $ 257

Capital Stock (Tables)

Capital Stock (Tables)	12 Months Ended
	Dec. 31, 2019
Equity [Abstract]
Schedule of changes in outstanding Common Stock	Changes in outstanding common stock were as follows: (In thousands of shares) 2019 2018 2017 Outstanding, beginning of year 106,363 104,572 99,843 Shares issued for exercise of options 281 603 416 Shares issued for time vested restricted stock (net of forfeitures) 53 1,188 952 Shares issued for acquisition — — 3,361 Outstanding, end of year 106,697 106,363 104,572

Earnings Per Share (Tables)

Earnings Per Share (Tables)	12 Months Ended
	Dec. 31, 2019
Earnings Per Share [Abstract]
Schedule of earnings per share, basic and diluted	The following table presents the reconciliation of the numerator and denominator for calculating income (loss) from continuing operations per share: Year Ended December 31, (In thousands, except per share data) 2019 2018 2017 Numerator Income (loss) from continuing operations - basic and diluted $ (12,946 ) $ 32,281 $ 11,219 Denominator Weighted average common shares outstanding - basic 89,782 89,996 85,421 Dilutive effect of stock options and restricted stock awards — 2,385 2,554 Dilutive effect of 2021 Convertible Notes — 544 — Weighted average common shares outstanding - diluted 89,782 92,925 87,975 Income (loss) from continuing operations per common share Basic $ (0.14 ) $ 0.36 $ 0.13 Diluted $ (0.14 ) $ 0.35 $ 0.13
Schedule of weighted-average potential shares excluded from diluted net income (loss) per share	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: Year Ended December 31, (In thousands) 2019 2018 2017 Stock options and restricted stock awards 5,312 1,495 7,419 2017 Convertible Notes — — 5,702

Stock-Based Compensation and _2

Stock-Based Compensation and Other Benefit Plans (Tables)	12 Months Ended
	Dec. 31, 2019
Share-based Payment Arrangement [Abstract]
Summary of activity for outstanding stock options	The following table summarizes activity for our outstanding stock options for the year ended December 31, 2019 : Stock Options Shares Weighted- Weighted- Aggregate Outstanding at beginning of period 3,311,726 $ 7.13 Granted — — Exercised (334,395 ) 3.93 Expired or canceled (135,272 ) 9.98 Outstanding at end of period 2,842,059 $ 7.37 3.89 $ 2,177 Vested or expected to vest at end of period 2,842,059 $ 7.37 3.89 $ 2,177 Options exercisable at end of period 2,842,059 $ 7.37 3.89 $ 2,177
Summary of activity for outstanding performance-based restricted stock units	The following table summarizes activity for outstanding performance-based restricted stock units for the year-ended December 31, 2019 : Nonvested Performance-Based Restricted Stock Units Shares Weighted-Average Outstanding at beginning of period 230,790 $ 5.18 Granted — — Vested (230,790 ) 5.18 Forfeited — — Outstanding at the end of period — $ —
Summary of activity for outstanding time-vested restricted stock awards and restricted stock units	The following tables summarize the activity for our outstanding time-vested restricted stock awards and restricted stock units for the year ended December 31, 2019 : Nonvested Restricted Stock Awards (Time-Vesting) Shares Weighted-Average Nonvested at January 1, 2019 180,578 $ 9.56 Granted 104,900 7.34 Vested (105,578 ) 10.49 Forfeited — — Nonvested at December 31, 2019 179,900 $ 7.72 Nonvested Restricted Stock Units (Time-Vesting) Shares Weighted-Average Nonvested at January 1, 2019 1,797,538 $ 8.33 Granted 1,351,916 7.24 Vested (903,254 ) 6.97 Forfeited (153,031 ) 8.06 Nonvested at December 31, 2019 2,093,169 $ 8.24

Segment and Related Informati_2

Segment and Related Information (Tables)	12 Months Ended
	Dec. 31, 2019
Segment Reporting [Abstract]
Schedule of segment reporting information	Summarized financial information concerning our reportable segments is shown in the following tables: Year Ended December 31, (In thousands) 2019 2018 2017 Revenues Fluids systems $ 620,317 $ 715,813 $ 615,803 Mats and integrated services 199,802 230,735 131,960 Total revenues $ 820,119 $ 946,548 $ 747,763 Depreciation and amortization Fluids systems $ 21,202 $ 20,922 $ 21,566 Mats and integrated Services 21,763 21,321 14,991 Corporate office 4,179 3,656 3,200 Total depreciation and amortization $ 47,144 $ 45,899 $ 39,757 Operating income (loss) Fluids systems $ 3,814 $ 40,337 $ 27,580 Mats and integrated services 47,466 60,604 40,491 Corporate office (40,885 ) (37,383 ) (36,635 ) Total operating income (loss) $ 10,395 $ 63,558 $ 31,436 Segment assets Fluids systems $ 593,758 $ 617,615 $ 611,455 Mats and integrated services 265,786 270,248 260,931 Corporate office 40,535 27,991 30,330 Total segment assets $ 900,079 $ 915,854 $ 902,716 Capital expenditures Fluids Systems $ 18,416 $ 15,356 $ 17,589 Mats and Integrated Services 23,535 27,043 11,956 Corporate office 2,855 2,742 1,826 Total capital expenditures $ 44,806 $ 45,141 $ 31,371
Schedule of disaggregated revenues for Fluid Systems segment	The following table presents further disaggregated revenues for the Fluids Systems segment: Year Ended December 31, (In thousands) 2019 2018 2017 United States $ 395,618 $ 410,410 $ 341,075 Canada 31,635 66,416 54,322 Total North America 427,253 476,826 395,397 EMEA 172,263 192,537 179,360 Asia Pacific 15,273 17,733 4,081 Latin America 5,528 28,717 36,965 Total International 193,064 238,987 220,406 Total Fluids Systems revenues $ 620,317 $ 715,813 $ 615,803
Disaggregation revenues for Mats and Integrated Services segments	The following table presents further disaggregated revenues for the Mats and Integrated Services segment: Year Ended December 31, (In thousands) 2019 2018 2017 Service revenues $ 73,130 $ 93,056 $ 34,943 Rental revenues 70,207 81,784 61,124 Product sales revenues 56,465 55,895 35,893 Total Mats and Integrated Services revenues $ 199,802 $ 230,735 $ 131,960
Schedule of revenue and long-lived assets	The following table sets forth geographic information for all of our operations. Revenues by geographic location are determined based on the operating location from which services are rendered or products are sold. Long-lived assets include property, plant and equipment and other long-term assets based on the country in which the assets are located. Year Ended December 31, (In thousands) 2019 2018 2017 Revenues United States $ 578,698 $ 626,656 $ 460,872 Canada 37,496 67,374 55,600 Algeria 60,010 81,508 87,975 All Other EMEA 123,114 124,510 102,247 Asia Pacific 15,273 17,733 4,081 Latin America 5,528 28,767 36,988 Total revenues $ 820,119 $ 946,548 $ 747,763 Long-lived assets United States $ 365,185 $ 338,475 $ 337,190 Canada 2,129 3,284 3,993 EMEA 46,447 41,774 46,269 Asia Pacific 2,862 2,898 3,120 Latin America 1,047 1,595 2,354 Total long-lived assets $ 417,670 $ 388,026 $ 392,926

Supplemental Cash Flow and Ot_2

Supplemental Cash Flow and Other Information (Tables)	12 Months Ended
	Dec. 31, 2019
Supplemental Cash Flow Elements [Abstract]
Schedule of supplemental cash flow disclosures, impairments and other non-cash charges	Supplemental disclosures to the statements of cash flows are presented below: (in thousands) 2019 2018 2017 Cash paid (received) for: Income taxes (net of refunds) $ 12,165 $ 15,627 $ (20,396 ) Interest $ 8,718 $ 8,741 $ 8,718
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) 2019 2018 2017 Cash and cash equivalents $ 48,672 $ 56,118 $ 56,352 Restricted cash (included in other current assets) 8,191 8,148 9,108 Cash, cash equivalents, and restricted cash $ 56,863 $ 64,266 $ 65,460

Discontinued Operations (Tables

Discontinued Operations (Tables)	12 Months Ended
	Dec. 31, 2019
Discontinued Operations and Disposal Groups [Abstract]
Operations from discontinued operations	Summarized results of operations from discontinued operations are as follows: (In thousands) 2017 Loss from disposal of discontinued operations before income taxes $ 21,983 Loss from disposal of discontinued operations, net of tax $ 17,367

Supplemental Selected Quarter_2

Supplemental Selected Quarterly Financial Data (Unaudited) (Tables)	12 Months Ended
	Dec. 31, 2019
Quarterly Financial Information Disclosure [Abstract]
Supplemental selected quarterly financial data	(In thousands, except per share amounts) First Second Third Fourth Fiscal Year 2019 Revenues $ 211,473 $ 216,412 $ 202,763 $ 189,471 Operating income (loss) 5,679 10,914 6,288 (12,486 ) Income (loss) from continuing operations 1,282 4,306 (1,441 ) (17,093 ) Net income (loss) 1,282 4,306 (1,441 ) (17,093 ) Income per common share - basic: Income from continuing operations $ 0.01 $ 0.05 $ (0.02 ) $ (0.19 ) Net income $ 0.01 $ 0.05 $ (0.02 ) $ (0.19 ) Income per common share - diluted: Income from continuing operations $ 0.01 $ 0.05 $ (0.02 ) $ (0.19 ) Net income $ 0.01 $ 0.05 $ (0.02 ) $ (0.19 ) Fiscal Year 2018 Revenues $ 227,293 $ 236,262 $ 235,329 $ 247,664 Operating income 13,838 19,143 10,054 20,523 Income from continuing operations 7,222 10,846 3,644 10,569 Net income 7,222 10,846 3,644 10,569 Income per common share - basic: Income from continuing operations $ 0.08 $ 0.12 $ 0.04 $ 0.12 Net income $ 0.08 $ 0.12 $ 0.04 $ 0.12 Income per common share - diluted: Income from continuing operations $ 0.08 $ 0.12 $ 0.04 $ 0.11 Net income $ 0.08 $ 0.12 $ 0.04 $ 0.11

Summary of Significant Accoun_3

Summary of Significant Accounting Policies - Textual (Details)	12 Months Ended
	Dec. 31, 2019USD ($)segment	Jan. 01, 2019USD ($)	Dec. 31, 2018USD ($)	Jan. 01, 2018USD ($)
Property, Plant and Equipment [Line Items]
Number of reportable segments | segment	2
AOCI, foreign currency translation adjustment	$ (67,900,000)		$ (67,700,000)
Accumulated other comprehensive loss	67,947,000		$ 67,673,000
Operating lease assets	32,009,000	$ 28,000,000
Present value of lease liabilities	33,051,000	28,000,000
Cumulative effect of accounting changes		$ 0		$ (6,764,000)
BRAZIL [Member]
Property, Plant and Equipment [Line Items]
Accumulated other comprehensive loss	$ 10,300,000
Retained Earnings [Member]
Property, Plant and Equipment [Line Items]
Cumulative effect of accounting changes				(6,764,000)
Retained Earnings [Member] | Accounting Standards Update 2016-16 [Member]
Property, Plant and Equipment [Line Items]
Cumulative effect of accounting changes				(4,500,000)
Retained Earnings [Member] | Difference between revenue guidance in effect before and after Topic 606 [Member] | Accounting Standards Update 2014-09 [Member]
Property, Plant and Equipment [Line Items]
Cumulative effect of accounting changes				$ (2,300,000)

Summary of Significant Accoun_4

Summary of Significant Accounting Policies - Estimated Useful Service Lives or Lease Term (Details)	12 Months Ended
	Dec. 31, 2019
Minimum [Member] | Computer hardware and office equipment [Member]
Property, Plant and Equipment [Line Items]
Useful lives	3 years
Minimum [Member] | Computer software [Member]
Property, Plant and Equipment [Line Items]
Useful lives	3 years
Minimum [Member] | Autos and light trucks [Member]
Property, Plant and Equipment [Line Items]
Useful lives	5 years
Minimum [Member] | Furniture, fixtures and trailers [Member]
Property, Plant and Equipment [Line Items]
Useful lives	7 years
Minimum [Member] | Composite mats (rental fleet) [Member]
Property, Plant and Equipment [Line Items]
Useful lives	7 years
Minimum [Member] | Machinery and equipment [Member]
Property, Plant and Equipment [Line Items]
Useful lives	10 years
Minimum [Member] | Owned buildings [Member]
Property, Plant and Equipment [Line Items]
Useful lives	20 years
Maximum [Member] | Computer hardware and office equipment [Member]
Property, Plant and Equipment [Line Items]
Useful lives	5 years
Maximum [Member] | Computer software [Member]
Property, Plant and Equipment [Line Items]
Useful lives	10 years
Maximum [Member] | Autos and light trucks [Member]
Property, Plant and Equipment [Line Items]
Useful lives	7 years
Maximum [Member] | Furniture, fixtures and trailers [Member]
Property, Plant and Equipment [Line Items]
Useful lives	10 years
Maximum [Member] | Composite mats (rental fleet) [Member]
Property, Plant and Equipment [Line Items]
Useful lives	12 years
Maximum [Member] | Machinery and equipment [Member]
Property, Plant and Equipment [Line Items]
Useful lives	15 years
Maximum [Member] | Owned buildings [Member]
Property, Plant and Equipment [Line Items]
Useful lives	39 years

Business Combinations - Textual

Business Combinations - Textual (Details) - USD ($) $ in Thousands, shares in Millions	Oct. 08, 2019	Oct. 31, 2019	Nov. 30, 2017	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Business Acquisition [Line Items]
Payment to acquire business, net of cash acquired				$ 18,692	$ 249	$ 44,750
Cleansorb Limited [Member]
Business Acquisition [Line Items]
Payment to acquire business, net of cash acquired	$ 18,692	$ 18,700
Intangible assets		$ 8,300
Finite-lived intangible assets acquired, weighted-average amortization period		14 years
Cleansorb Limited [Member] | Minimum [Member]
Business Acquisition [Line Items]
Finite-lived intangible assets acquired, amortization period		12 years
Cleansorb Limited [Member] | Maximum [Member]
Business Acquisition [Line Items]
Finite-lived intangible assets acquired, amortization period		15 years
Well Service Group, Inc. and Utility Access Solutions, Inc. (WSG) [Member]
Business Acquisition [Line Items]
Purchase price of acquisition			$ 77,400
Cash consideration			$ 45,000		$ 200
Business acquisition, common shares issuance (in shares)			3.4
Equity issued at closing in 2017			$ 32,400

Business Combinations - Assets

Business Combinations - Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Thousands	Oct. 08, 2019	Oct. 31, 2019	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Business Acquisition [Line Items]
Goodwill			$ 42,332	$ 43,832	$ 43,620
Net cash conveyed at closing			$ 18,692	$ 249	$ 44,750
Cleansorb Limited [Member]
Business Acquisition [Line Items]
Receivables	$ 2,691
Intangible assets	8,268
Other assets	974
Total assets acquired	11,933
Deferred tax liabilities	1,197
Other liabilities	1,302
Total liabilities assumed	2,499
Net assets purchased	9,434
Goodwill	9,258
Net cash conveyed at closing	$ 18,692	$ 18,700

Inventories - Schedule of Inven

Inventories - Schedule of Inventories (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Inventory, Net, Items Net of Reserve Alternative [Abstract]
Raw materials	$ 146,363	$ 150,222
Total inventories	196,897	196,896
Drilling fluids [Member]
Inventory, Net, Items Net of Reserve Alternative [Abstract]
Raw materials	141,314	148,737
Mats [Member]
Inventory, Net, Items Net of Reserve Alternative [Abstract]
Raw materials	5,049	1,485
Finished goods	10,992	8,586
Blended drilling fluids components [Member]
Inventory, Net, Items Net of Reserve Alternative [Abstract]
Finished goods	$ 39,542	$ 38,088

Property, Plant and Equipment -

Property, Plant and Equipment - Schedule of Property, Plant and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	$ 310,409
Property, plant and equipment, net		$ 316,293
Land [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment	11,869
Property, plant and equipment		11,338
Buildings and improvements [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment	130,895
Property, plant and equipment		131,128
Machinery and equipment [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment	295,622
Property, plant and equipment		291,081
Computer hardware and software [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment	40,880
Property, plant and equipment		35,730
Furniture and fixtures [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment	5,921
Property, plant and equipment		5,725
Construction in progress [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment	13,091
Property, plant and equipment		12,960
Property, plant and equipment excluding composite mats [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment	498,278
Property, plant and equipment		487,962
Less accumulated depreciation	(259,205)
Less accumulated depreciation		(239,643)
Property, plant and equipment, net	239,073
Property, plant and equipment, net		248,319
Composite mats [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment	125,300	120,644
Less accumulated depreciation	(53,964)	(52,670)
Property, plant and equipment, net	$ 71,336	$ 67,974

Property, Plant and Equipment_2

Property, Plant and Equipment - Textual (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Property, Plant and Equipment [Abstract]
Depreciation	$ 42.8	$ 41.2	$ 36.4

- Changes in the Carrying Amoun

- Changes in the Carrying Amount of Goodwill (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Goodwill [Roll Forward]
Goodwill, beginning balance		$ 43,832	$ 43,620
Acquisition		9,258	562
Impairment	$ (11,400)	(11,422)	0	$ 0
Effects of foreign currency		664	(350)
Goodwill, ending balance	42,332	42,332	43,832	43,620
Fluids systems [Member]
Goodwill [Roll Forward]
Goodwill, beginning balance		1,641	1,782
Acquisition		9,258	0
Impairment		(11,422)
Effects of foreign currency		523	(141)
Goodwill, ending balance	0	0	1,641	1,782
Mats and integrated services [Member]
Goodwill [Roll Forward]
Goodwill, beginning balance		42,191	41,838
Acquisition		0	562
Impairment		0
Effects of foreign currency		141	(209)
Goodwill, ending balance	$ 42,332	$ 42,332	$ 42,191	$ 41,838

Goodwill and Other Intangible_3

Goodwill and Other Intangible Assets - Textual (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Oct. 31, 2019
Goodwill [Line Items]
Goodwill impairment	$ 11,400	$ 11,422	$ 0	$ 0
Amortization of intangible assets		$ 4,400	$ 4,700	$ 3,300
Technology-based intangible assets [Member]
Goodwill [Line Items]
Finite-lived intangible asset, useful life		14 years
Customer-related intangible assets [Member]
Goodwill [Line Items]
Finite-lived intangible asset, useful life		12 years
Cleansorb Limited [Member]
Goodwill [Line Items]
Intangible assets					$ 8,300
Fluids systems [Member]
Goodwill [Line Items]
Goodwill impairment		$ 11,422

Goodwill and Other Intangible_4

Goodwill and Other Intangible Assets - Other Intangible Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Finite-Lived Intangible Assets, Net [Abstract]
Finite-lived intangible assets, gross carrying amount	$ 53,919	$ 59,887
Finite-lived intangible assets, accumulated amortization	(24,750)	(35,245)
Finite-lived intangible assets, net	29,169	24,642
Indefinite-lived Intangible Assets (Excluding Goodwill) [Abstract]
Indefinite-lived intangible assets	508	518
Total intangible assets, gross carrying amount	54,427	60,405
Total intangible assets, net	29,677	25,160
Permits and licenses [Member]
Indefinite-lived Intangible Assets (Excluding Goodwill) [Abstract]
Indefinite-lived intangible assets	508	518
Technology-based intangible assets [Member]
Finite-Lived Intangible Assets, Net [Abstract]
Finite-lived intangible assets, gross carrying amount	20,222	17,380
Finite-lived intangible assets, accumulated amortization	(6,516)	(5,509)
Finite-lived intangible assets, net	13,706	11,871
Customer-related intangible assets [Member]
Finite-Lived Intangible Assets, Net [Abstract]
Finite-lived intangible assets, gross carrying amount	33,697	40,662
Finite-lived intangible assets, accumulated amortization	(18,234)	(27,891)
Finite-lived intangible assets, net	15,463	12,771
Employment related intangible assets [Member]
Finite-Lived Intangible Assets, Net [Abstract]
Finite-lived intangible assets, gross carrying amount	0	1,845
Finite-lived intangible assets, accumulated amortization	0	(1,845)
Finite-lived intangible assets, net	$ 0	$ 0

Goodwill and Other Intangible_5

Goodwill and Other Intangible Assets - Estimated Future Amortization Expense (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Finite-Lived Intangible Assets, Amortization Expense, Maturity Schedule [Abstract]
Finite-lived intangible assets, amortization expense, 2020	$ 2,769
Finite-lived intangible assets, amortization expense, 2021	2,294
Finite-lived intangible assets, amortization expense, 2022	2,020
Finite-lived intangible assets, amortization expense, 2023	1,731
Finite-lived intangible assets, amortization expense, 2024	2,502
Finite-lived intangible assets, amortization expense, thereafter	17,853
Finite-lived intangible assets, net	29,169	$ 24,642
Technology-based intangible assets [Member]
Finite-Lived Intangible Assets, Amortization Expense, Maturity Schedule [Abstract]
Finite-lived intangible assets, amortization expense, 2020	1,353
Finite-lived intangible assets, amortization expense, 2021	1,298
Finite-lived intangible assets, amortization expense, 2022	1,237
Finite-lived intangible assets, amortization expense, 2023	1,068
Finite-lived intangible assets, amortization expense, 2024	1,044
Finite-lived intangible assets, amortization expense, thereafter	7,706
Finite-lived intangible assets, net	13,706	11,871
Customer-related intangible assets [Member]
Finite-Lived Intangible Assets, Amortization Expense, Maturity Schedule [Abstract]
Finite-lived intangible assets, amortization expense, 2020	1,416
Finite-lived intangible assets, amortization expense, 2021	996
Finite-lived intangible assets, amortization expense, 2022	783
Finite-lived intangible assets, amortization expense, 2023	663
Finite-lived intangible assets, amortization expense, 2024	1,458
Finite-lived intangible assets, amortization expense, thereafter	10,147
Finite-lived intangible assets, net	$ 15,463	$ 12,771

Financing Arrangements - Schedu

Financing Arrangements - Schedule of Financing Arrangements (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Debt Instrument [Line Items]
Long-term debt, gross	$ 172,164	$ 179,499
Unamortized discount and debt issuance costs	(12,291)	(17,752)
Long-term debt	159,873	161,747
Long-term debt, current maturities, gross	(6,335)	(2,522)
Unamortized discount and debt issuance costs, current	0	0
Long-term debt, current maturities	(6,335)	(2,522)
Long-term debt, excluding current maturities, gross	165,829	176,977
Unamortized discount and debt issuance costs, noncurrent	(12,291)	(17,752)
Long-term debt, excluding current maturities	153,538	159,225
Other debt [Member]
Debt Instrument [Line Items]
Long-term debt, gross	7,164	3,199
Unamortized discount and debt issuance costs	0	0
Long-term debt	7,164	3,199
Revolving credit facility [Member] | ABL Facility [Member]
Debt Instrument [Line Items]
Long-term debt, gross	65,000	76,300
Unamortized discount and debt issuance costs	0	0
Long-term debt	65,000	76,300
Senior notes [Member] | Convertible Notes due 2021 [Member]
Debt Instrument [Line Items]
Long-term debt, gross	100,000	100,000
Unamortized discount and debt issuance costs	(12,291)	(17,752)
Long-term debt	$ 87,709	$ 82,248

Financing Arrangements - Textua

Financing Arrangements - Textual (Details)	1 Months Ended		12 Months Ended
	Dec. 31, 2016USD ($)trading_day$ / shares	May 31, 2016USD ($)	Dec. 31, 2022USD ($)	Dec. 31, 2021USD ($)	Dec. 31, 2019USD ($)	Dec. 31, 2018USD ($)	Dec. 31, 2017USD ($)	Dec. 31, 2016USD ($)$ / shares	May 12, 2016USD ($)
Conversion price percentage	130.00%
Business day period	5 days
Consecutive trading day period	5 days
Percent threshold last reported sale price	98.00%
Deferred tax liabilities					$ 47,375,000	$ 51,337,000
Current debt					6,335,000	2,522,000
Interest expense					14,400,000	14,900,000	$ 13,300,000
Interest costs capitalized					0	0	$ 100,000
Foreign Operations [Member]
Current debt					$ 4,800,000	$ 1,100,000
Scenario, forecast [Member]
Repayments of debt			$ 65,000,000	$ 100,000,000
Senior notes [Member]
Debt instrument, convertible, threshold trading days | trading_day	20
Debt instrument, convertible, threshold consecutive trading days | trading_day	30
Debt conversion, converted shares for basis principal (in shares)	10.71381%
Interest rate, effective percentage					11.30%
Convertible Notes due 2021 [Member] | Senior notes [Member]
Debt instrument, face amount	$ 100,000,000							$ 100,000,000
Interest rate, stated percentage	4.00%							4.00%
Debt instrument, convertible, conversion price (in dollars per share) | $ / shares	$ 9.33							$ 9.33
ABL Facility [Member] | Revolving credit facility [Member]
Current borrowing capacity		$ 200,000,000
Maximum borrowing capacity		275,000,000			$ 156,800,000
Weighted average interest rate					3.20%
Secured debt outstanding					$ 65,000,000
Remaining borrowing capacity					$ 91,800,000
Fixed charge coverage ratio, amount		$ 25,000,000							$ 22,500,000
Unused capacity, commitment fee percentage					0.375%
Covenant terms acceleration of other indebtedness									$ 25,000,000
Convertible debt, debt component [Member]
Debt issuance cost	$ 2,700,000							$ 2,700,000
Deferred tax liabilities	15,200,000							15,200,000
Current debt					$ 87,700,000
Unamortized debt discount					11,000,000
Debt issuance cost					$ 1,300,000
Convertible debt, debt component [Member] | Senior notes [Member]
Debt instrument, fair value	$ 75,200,000							$ 75,200,000
Interest rate, effective percentage	10.50%							10.50%
Convertible debt, equity component [Member]
Debt instrument, conversion equity amount	$ 24,800,000							$ 24,800,000
Deferred tax liability								(8,700,000)
Debt issuance cost	$ 900,000							$ 900,000
Federal Funds Rate [Member] | ABL Facility [Member]
Base rate basis spread on variable rate		0.50%
London Interbank Offered Rate (LIBOR) [Member] | ABL Facility [Member]
Base rate basis spread on variable rate		1.00%
Basis spread on variable rate					1.50%
Base Rate [Member] | ABL Facility [Member]
Basis spread on variable rate					50.00%
Minimum [Member] | ABL Facility [Member] | Revolving credit facility [Member]
Unused capacity, commitment fee percentage					0.25%
Minimum [Member] | London Interbank Offered Rate (LIBOR) [Member] | ABL Facility [Member]
Basis spread on variable rate		1.50%
Minimum [Member] | Base Rate [Member] | ABL Facility [Member]
Basis spread on variable rate		50.00%
Maximum [Member] | ABL Facility [Member] | Revolving credit facility [Member]
Unused capacity, commitment fee percentage					0.375%
Maximum [Member] | London Interbank Offered Rate (LIBOR) [Member] | ABL Facility [Member]
Basis spread on variable rate		2.00%
Maximum [Member] | Base Rate [Member] | ABL Facility [Member]
Basis spread on variable rate		1.00%

Fair Value of Financial Instr_3

Fair Value of Financial Instruments and Concentrations of Credit Risk - Textual (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other receivables, value added taxes	$ 6.2	$ 6.3
Customer concentration risk [Member] | Revenues [Member] | Twenty largest customers [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Concentration risk, percentage	42.00%	44.00%	45.00%
Senior notes [Member] | Convertible Notes due 2021 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, fair value	$ 101.4	$ 120.9

Fair Value of Financial Instr_4

Fair Value of Financial Instruments and Concentrations of Credit Risk - Accounts Receivable (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Trade receivables:
Gross trade receivables	$ 207,554	$ 248,176
Allowance for doubtful accounts	(6,007)	(10,034)
Net trade receivables	201,547	238,142
Income tax receivables	7,393	9,027
Other receivables	7,774	7,225
Total receivables, net	$ 216,714	$ 254,394

Fair Value of Financial Instr_5

Fair Value of Financial Instruments and Concentrations of Credit Risk - Allowances for Losses on Accounts Receivable (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Balance at beginning of year	$ 10,034	$ 9,457	$ 8,849
Provision for doubtful accounts	1,792	2,849	1,481
Write-offs, net of recoveries	(5,819)	(2,272)	(873)
Balance at end of year	$ 6,007	$ 10,034	$ 9,457

Leases - Textual (Details)

Leases - Textual (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Lessee, Lease, Description [Line Items]
Operating lease expense	$ 30.1
Operating lease liabilities in exchange for leased assets	12.1
Letters of credit in favor of insurance company [Member]
Lessee, Lease, Description [Line Items]
Operating leases, rent expense		$ 27.4	$ 23.9
Current Operating Lease Liabilities [Member]
Lessee, Lease, Description [Line Items]
Operating lease expense	19.5
Noncurrent Operating Lease Liabilities [Member]
Lessee, Lease, Description [Line Items]
Operating lease expense	$ 10.6
Minimum [Member]
Lessee, Lease, Description [Line Items]
Lease remaining lease term	1 year
Maximum [Member]
Lessee, Lease, Description [Line Items]
Lease remaining lease term	12 years

Leases - Balance Sheet Classifi

Leases - Balance Sheet Classification (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Jan. 01, 2019
Leases [Abstract]
Operating lease assets	$ 32,009	$ 28,000
Finance lease assets	1,135
Total lease assets	33,144
Current operating lease liabilities	6,105
Current finance lease liabilities	287
Noncurrent operating lease liabilities	26,946
Noncurrent finance lease liabilities	829
Total lease liabilities	$ 34,167

Leases - Maturity of Lease Liab

Leases - Maturity of Lease Liability (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Jan. 01, 2019	Dec. 31, 2018
Operating Leases
2020	$ 7,528
2021	5,932
2022	4,351
2023	3,199
2024	2,760
Thereafter	17,165
Total lease payments	40,935
Less: Interest	7,884
Present value of lease liabilities	33,051	$ 28,000
Finance Leases
2020	330
2021	329
2022	329
2023	221
2024	0
Thereafter	0
Total lease payments	1,209
Less: Interest	93
Present value of lease liabilities	1,116
Total
2020	7,858
2021	6,261
2022	4,680
2023	3,420
2024	2,760
Thereafter	17,165
Total lease payments	42,144
Less: Interest	7,977
Present value of lease liabilities	$ 34,167
Operating Leases Before Topic 842 Adoption
2019			$ 9,112
2020			5,707
2021			4,630
2022			3,816
2023			3,144
Thereafter			4,507
Total operating leases			$ 30,916

Leases - Lease Term and Discoun

Leases - Lease Term and Discount Rate (Details)	Dec. 31, 2019
Weighted-average remaining lease term (years)
Operating leases	8 years 6 months
Finance leases	3 years 8 months 12 days
Weighted-average discount rate
Operating leases	4.80%
Finance leases	4.50%

Income Taxes - Textual (Details

Income Taxes - Textual (Details) $ in Thousands, $ in Millions	3 Months Ended			9 Months Ended	12 Months Ended
	Dec. 31, 2019USD ($)	Dec. 31, 2018USD ($)	Jun. 30, 2017USD ($)	Sep. 30, 2018USD ($)	Dec. 31, 2019USD ($)	Dec. 31, 2018USD ($)	Dec. 31, 2017USD ($)	Dec. 31, 2015USD ($)	Dec. 31, 2015MXN ($)
Income Tax Examination [Line Items]
Net tax benefit recognized		$ 1,600		$ 5,000			$ 3,400
Provision for income taxes					$ 9,788	$ 14,997	4,893
Goodwill impairment	$ 11,400				11,422	0	$ 0
Provision for income taxes					1,400
Deferred tax assets, NOL carryforwards, state and local	149,500				149,500
Deferred tax assets, NOL carryforwards, foreign	20,900				20,900
Deferred tax assets, valuation allowance	23,962	$ 23,842			23,962	$ 23,842
Income tax benefit, release of U.S. tax reserves			$ 3,900
Unrecognized tax benefits that would impact effective tax rate	$ 300				$ 300
Foreign tax authority [Member] | Mexico Tax Authority [Member]
Income Tax Examination [Line Items]
Income tax assessment								$ 3,300	$ 60

Income Taxes - Provision For In

Income Taxes - Provision For Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Current:
U.S. Federal	$ 1,892	$ 805	$ (236)
State	706	1,384	561
Foreign	11,440	12,572	10,301
Total current	14,038	14,761	10,626
Deferred:
U.S. Federal	(2,926)	(331)	(3,848)
State	1,181	66	(796)
Foreign	(2,505)	501	(1,089)
Total deferred	(4,250)	236	(5,733)
Total provision for income taxes	$ 9,788	$ 14,997	$ 4,893

Income Taxes - Total Provision

Income Taxes - Total Provision Allocated In Components (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Income (loss) from continuing operations	$ 9,788	$ 14,997	$ 4,893
Loss from discontinued operations	0	0	(4,616)
Total provision for income taxes	$ 9,788	$ 14,997	$ 277

Income Taxes - Income from Oper

Income Taxes - Income from Operations Before Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Tax Disclosure [Abstract]
U.S.	$ (15,270)	$ 4,084	$ (27,282)
Foreign	12,112	43,194	43,394
Income (loss) from continuing operations before income taxes	$ (3,158)	$ 47,278	$ 16,112

Income Taxes - Effective Income

Income Taxes - Effective Income Tax Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Income tax expense (benefit) at federal statutory rate	$ (663)	$ 9,929	$ 5,639
Nondeductible executive compensation	756	1,165	768
Nondeductible goodwill impairment	2,401	0	0
Other nondeductible expenses	1,506	1,216	1,368
Stock-based compensation	(248)	(786)	472
Different rates on earnings of foreign operations	463	912	(2,139)
Dividend taxes on unremitted earnings	1,609	3,023	1,506
U.S. tax on foreign earnings	1,215	333	0
Change in valuation allowance	1,272	(790)	240
State tax expense (benefit), net	430	1,298	(283)
Net impact of Tax Act	0	(1,613)	(3,387)
Other items, net	1,047	310	709
Total provision for income taxes	$ 9,788	$ 14,997	$ 4,893

Income Taxes - Deferred Tax Ass

Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Deferred tax assets:
Net operating losses	$ 14,205	$ 14,054
Foreign tax credits	5,651	7,304
Accruals not currently deductible	4,928	3,209
Unrealized foreign exchange losses, net	3,837	3,575
Stock-based compensation	3,380	3,266
Capitalized inventory costs	1,611	1,972
Alternative minimum tax carryforwards	369	2,198
Other	6,709	6,631
Total deferred tax assets	40,690	42,209
Valuation allowance	(23,962)	(23,842)
Total deferred tax assets, net of allowances	16,728	18,367
Deferred tax liabilities:
Accelerated depreciation and amortization	(28,703)	(29,656)
Tax on unremitted earnings	(13,645)	(16,174)
Original issue discount on 2021 Convertible Notes	(2,311)	(3,347)
Other	(2,716)	(2,160)
Total deferred tax liabilities	(47,375)	(51,337)
Net deferred tax liabilities	(30,647)	(32,970)
Noncurrent deferred tax assets	3,600	4,516
Noncurrent deferred tax liabilities	(34,247)	(37,486)
Net deferred tax liabilities	$ (30,647)	$ (32,970)

Income Taxes - Uncertain Tax Po

Income Taxes - Uncertain Tax Positions Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Balance at January 1	$ 223	$ 257	$ 665
Additions (reductions) for tax positions of prior years	68
Additions (reductions) for tax positions of prior years		(3)	(399)
Additions (reductions) for tax positions of current year	0
Reductions for settlements with tax authorities		0	0
Reductions for lapse of statute of limitations		(31)	(9)
Balance at December 31	$ 291	$ 223	$ 257

- Changes in Outstanding Common

- Changes in Outstanding Common Stock (Details) - shares shares in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Changes in Common Stock [Roll Forward]
Outstanding, beginning of year (in shares)	106,363	104,572	99,843
Shares issued for exercise of options (in shares)	281	603	416
Shares issued for time vested restricted stock (net of forfeitures) (in shares)	53	1,188	952
Shares issued for acquisition (in shares)	0	0	3,361
Outstanding, end of year (in shares)	106,697	106,363	104,572

Capital Stock - Textual (Detail

Capital Stock - Textual (Details) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Nov. 30, 2018
Equity, Class of Treasury Stock [Line Items]
Treasury stock, common (in shares)	16,958,418	15,530,952	15,366,504
Preferred stock, shares authorized (in shares)	1,000,000
Preferred stock, par or stated value per share (in dollars per share)	$ 0.01
Preferred stock, shares outstanding (in shares)	0	0	0
Treasury stock, shares, acquired (in shares)	381,041	362,190	415,418
Treasury shares purchased	$ 19,031,000
Treasury stock issued during period (in shares)	1,491,408	197,742	210,964
Share repurchase program [Member]
Equity, Class of Treasury Stock [Line Items]
Treasury stock, shares, acquired (in shares)	2,537,833
Treasury shares purchased	$ 19,000,000
Treasury stock issued during period (in shares)		0	0
Stock repurchase program, authorized amount	81,000,000			$ 100,000,000
Share repurchase program [Member] | Convertible Notes due 2021 [Member]
Equity, Class of Treasury Stock [Line Items]
Stock repurchase program, authorized amount				$ 33,500,000
Restricted Stock [Member]
Equity, Class of Treasury Stock [Line Items]
Treasury shares purchased	$ 2,700,000	$ 3,900,000	$ 3,200,000

Earnings Per Share - Reconcilia

Earnings Per Share - Reconciliation of Earnings per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Numerator
Income (loss) from continuing operations - basic and diluted	$ (17,093)	$ (1,441)	$ 4,306	$ 1,282	$ 10,569	$ 3,644	$ 10,846	$ 7,222	$ (12,946)	$ 32,281	$ 11,219
Denominator
Weighted average common shares outstanding - basic (in shares)									89,782	89,996	85,421
Dilutive effect of stock options and restricted stock awards (in shares)									0	2,385	2,554
Weighted average common shares outstanding - diluted (in shares)									89,782	92,925	87,975
Income (loss) from continuing operations per common share
Basic (in dollars per share)	$ (0.19)	$ (0.02)	$ 0.05	$ 0.01	$ 0.12	$ 0.04	$ 0.12	$ 0.08	$ (0.14)	$ 0.36	$ 0.13
Diluted (in dollars per share)	$ (0.19)	$ (0.02)	$ 0.05	$ 0.01	$ 0.11	$ 0.04	$ 0.12	$ 0.08	$ (0.14)	$ 0.35	$ 0.13
Convertible debt [Member]
Denominator
Dilutive effect of the convertible notes (in shares)									0	544	0

Earnings Per Share - Antidiluti

Earnings Per Share - Antidilutive Securities Excluded from Computation of EPS (Details) - $ / shares shares in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Convertible Notes due 2021 [Member] | Senior notes [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Debt instrument, convertible, conversion price (in dollars per share)				$ 9.33
Stock options and restricted stock awards [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Weighted-average antidilutive securities excluded from computation of EPS (in shares)	5,312	1,495	7,419
Convertible notes [Member] | Convertible Notes due 2017 [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Weighted-average antidilutive securities excluded from computation of EPS (in shares)	0	0	5,702

Stock-Based Compensation and _3

Stock-Based Compensation and Other Benefit Plans - Textual (Details) - USD ($)	1 Months Ended	3 Months Ended		12 Months Ended
	May 31, 2014	Mar. 31, 2019	Sep. 30, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	May 31, 2019
Options granted (in shares)				0
Value of options exercised				$ 1,600,000	$ 2,300,000	$ 1,100,000
Proceeds from options exercised				1,300,000	3,900,000	2,600,000
Tax benefit from compensation expense				1,300,000	1,500,000	1,700,000
Tax benefits from exercise of stock options				$ 300,000	500,000	300,000
Maximum annual contributions per employee (percent)				50.00%
Employer discretionary contribution amount				$ 4,300,000	$ 3,900,000	1,400,000
Restricted Stock [Member]
Estimated fair value at date of grant (in dollars per share)				$ 7.34
Number of performance-based restricted stock units issued, at target (in shares)				104,900
Stock Options [Member]
Vesting period				3 years
Expiration period				10 years
Stock Appreciation Rights (SARs) [Member]
Granted, restricted stock (in shares)					0
Performance-based Restricted Stock Units [Member]
Estimated fair value at date of grant (in dollars per share)				$ 0
Vesting period				3 years
Number of performance-based restricted stock units issued, at target (in shares)				0	0
Allocated share-based compensation expense				$ 100,000	$ 800,000	$ 1,000,000
Vested				2,400,000
Restricted stock awards				4,100,000	3,000,000
Range of payout of shares for each executive, minimum						0.00%
Range of payout of shares for each executive, maximum						150.00%
Restricted Stock Units and Restricted Stock Awards [Member]
Tax benefit from compensation expense				1,900,000	2,800,000	$ 1,900,000
Allocated share-based compensation expense				9,800,000	7,800,000	8,000,000
Restricted stock awards				$ 10,400,000
Period for recognition				2 years 2 months 12 days
Fair value of shares vested				$ 7,200,000	$ 11,600,000	$ 10,400,000
Restricted Stock Units and Restricted Stock Awards [Member] | Minimum [Member]
Vesting period				3 years
Restricted Stock Units and Restricted Stock Awards [Member] | Maximum [Member]
Vesting period				4 years
The 2014 Director Plan [Member]
Number of shares authorized (in shares)				1,000,000
Shares available for grant (in shares)				313,780
The 2014 Director Plan [Member] | Non-employee directors [Member]
Restricted shares granted (in shares)	$ 150,000
The 2014 Director Plan [Member] | Non-employee directors [Member] | Restricted Stock [Member]
Granted, restricted stock (in shares)				104,900
Estimated fair value at date of grant (in dollars per share)				$ 7.34
The 2014 Director Plan [Member] | Board of Directors Chairman [Member]
Restricted shares granted (in shares)	$ 170,000
The 2015 Plan [Member]
Number of shares authorized (in shares)							12,300,000
Shares available for grant (in shares)				3,381,983
The 2015 Plan [Member] | Employees, non-directors [Member]
Plan modification, expense recognized		$ 4,000,000	$ 1,500,000
Participants Contributions from 3 Percent to 6 Percent of Compensation [Member]
Options granted (in shares)				0
Employer matching contribution, percent of match				50.00%
Participants Contributions from 3 Percent to 6 Percent of Compensation [Member] | Minimum [Member]
Employer matching contribution, percent of employees' gross pay				3.00%
Participants Contributions from 3 Percent to 6 Percent of Compensation [Member] | Maximum [Member]
Employer matching contribution, percent of employees' gross pay				6.00%
2019 Awards [Member] | Performance-based Restricted Stock Units [Member]
Allocated share-based compensation expense				$ 2,300,000
2019 Awards [Member] | Time-based Restricted Stock Units [Member]
Range of payout of shares for each executive, maximum				200.00%
2018 Awards [Member] | Performance-based Restricted Stock Units [Member]
Allocated share-based compensation expense				$ 1,300,000
2018 Awards [Member] | Time-based Restricted Stock Units [Member]
Allocated share-based compensation expense				$ 1,300,000
Range of payout of shares for each executive, minimum				0.00%
Range of payout of shares for each executive, maximum				150.00%
2017 Awards [Member] | Performance-based Restricted Stock Units [Member]
Allocated share-based compensation expense				$ 1,300,000
2017 Awards [Member] | Time-based Restricted Stock Units [Member]
Allocated share-based compensation expense				$ 5,300,000
Range of payout of shares for each executive, minimum				0.00%
Range of payout of shares for each executive, maximum				150.00%
Participants Contributions Up to 3 Percent of Compensation [Member]
Employer matching contribution, percent of employees' gross pay				3.00%
Employer matching contribution, percent of match				100.00%

Stock-Based Compensation and _4

Stock-Based Compensation and Other Benefit Plans - Stock Options Activity (Details)	12 Months Ended
	Dec. 31, 2019USD ($)$ / sharesshares
Shares
Outstanding at beginning of period (in shares) | shares	3,311,726
Granted (in shares) | shares	0
Exercised (in shares) | shares	(334,395)
Expired or canceled (in shares) | shares	(135,272)
Outstanding at end of period (in shares) | shares	2,842,059
Weighted- Average Exercise Price
Outstanding at beginning of period (in dollars per share) | $ / shares	$ 7.13
Granted (in dollars per share) | $ / shares	0
Exercised (in dollars per share) | $ / shares	3.93
Expired or canceled (in dollars per share) | $ / shares	9.98
Outstanding at end of period (in dollars per share) | $ / shares	$ 7.37
Vested or expected to vest at end of period
Vested or expected to vest at end of period (in shares) | shares	2,842,059
Vested or expected to vest at end of period (in dollars per share) | $ / shares	$ 7.37
Weighted- average remaining contractual life vested or expected to vest at end of period	3 years 10 months 20 days
Aggregate intrinsic value, vested or expected to vest at end of period | $	$ 2,177
Options exercisable at end of period
Options exercisable at end of period (in shares) | shares	2,842,059
Options exercisable at end of period (in dollars per share) | $ / shares	$ 7.37
Options exercisable at end of period	3 years 10 months 20 days
Options exercisable at end of period | $	$ 2,177
Weighted-average remaining contractual life, outstanding at end of period	3 years 10 months 20 days
Aggregate intrinsic value, outstanding at end of period | $	$ 2,177

Stock-Based Compensation and _5

Stock-Based Compensation and Other Benefit Plans - Restricted Stock Activity (Details) - Performance-based Restricted Stock Units [Member] - $ / shares	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Shares
Outstanding at beginning of period (in shares)	230,790
Granted (in shares)	0	0
Vested (in shares)	(230,790)
Forfeited (in shares)	0
Outstanding at the end of period (in shares)	0	230,790
Weighted-Average Grant Date Fair Value
Outstanding at beginning of period (in dollars per share)	$ 5.18
Granted (in dollars per share)	0
Vested (in dollars per share)	5.18
Forfeited (in dollars per share)	0
Outstanding at the end of period (in dollars per share)	$ 0	$ 5.18

Stock-Based Compensation and _6

Stock-Based Compensation and Other Benefit Plans - Time-vested Restricted Stock (Details)	12 Months Ended
	Dec. 31, 2019$ / sharesshares
Restricted Stock [Member]
Shares
Outstanding at beginning of period (in shares) | shares	180,578
Granted (in shares) | shares	104,900
Vested (in shares) | shares	(105,578)
Forfeited (in shares) | shares	0
Outstanding at the end of period (in shares) | shares	179,900
Weighted-Average Grant Date Fair Value
Outstanding at beginning of period (in dollars per share) | $ / shares	$ 9.56
Granted (in dollars per share) | $ / shares	7.34
Vested (in dollars per share) | $ / shares	10.49
Forfeited (in dollars per share) | $ / shares	0
Outstanding at the end of period (in dollars per share) | $ / shares	$ 7.72
Restricted Stock Units (RSUs) [Member]
Shares
Outstanding at beginning of period (in shares) | shares	1,797,538
Granted (in shares) | shares	1,351,916
Vested (in shares) | shares	(903,254)
Forfeited (in shares) | shares	(153,031)
Outstanding at the end of period (in shares) | shares	2,093,169
Weighted-Average Grant Date Fair Value
Outstanding at beginning of period (in dollars per share) | $ / shares	$ 8.33
Granted (in dollars per share) | $ / shares	7.24
Vested (in dollars per share) | $ / shares	6.97
Forfeited (in dollars per share) | $ / shares	8.06
Outstanding at the end of period (in dollars per share) | $ / shares	$ 8.24

Segment and Related Informati_3

Segment and Related Information - Textual (Details) $ in Thousands	3 Months Ended	12 Months Ended
	Dec. 31, 2019USD ($)	Dec. 31, 2019USD ($)segment	Dec. 31, 2018USD ($)	Dec. 31, 2017USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments | segment		2
Goodwill impairment	$ 11,400	$ 11,422	$ 0	$ 0
Charges relating to facility closures and related exit costs, inventory write-downs and severeance costs	6,700
Fluids systems [Member]
Segment Reporting Information [Line Items]
Goodwill impairment		11,422
Operating segments [Member] | Fluids systems [Member]
Segment Reporting Information [Line Items]
Goodwill impairment		11,400
Charges relating to facility closures and related exit costs, inventory write-downs and severeance costs	$ 7,300
Employees, non-directors [Member] | 2019 February [Member] | Corporate office [Member]
Segment Reporting Information [Line Items]
Plan modification, expense recognized		$ 3,400

Segment and Related Informati_4

Segment and Related Information - Financial Information by Segment (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Revenues
Revenues	$ 189,471	$ 202,763	$ 216,412	$ 211,473	$ 247,664	$ 235,329	$ 236,262	$ 227,293	$ 820,119	$ 946,548	$ 747,763
Depreciation and Amortization
Total depreciation and amortization									47,144	45,899	39,757
Operating Income (loss)
Total operating income (loss)	(12,486)	$ 6,288	$ 10,914	$ 5,679	20,523	$ 10,054	$ 19,143	$ 13,838	10,395	63,558	31,436
Segment Assets
Total segment assets	900,079				915,854				900,079	915,854	902,716
Capital Expenditures
Total capital expenditures									44,806	45,141	31,371
Fluids systems [Member]
Revenues
Revenues									620,317	715,813	615,803
Mats and integrated services [Member]
Revenues
Revenues									199,802	230,735	131,960
Operating segments [Member] | Fluids systems [Member]
Revenues
Revenues									620,317	715,813	615,803
Depreciation and Amortization
Total depreciation and amortization									21,202	20,922	21,566
Operating Income (loss)
Total operating income (loss)									3,814	40,337	27,580
Segment Assets
Total segment assets	593,758				617,615				593,758	617,615	611,455
Capital Expenditures
Total capital expenditures									18,416	15,356	17,589
Operating segments [Member] | Mats and integrated services [Member]
Revenues
Revenues									199,802	230,735	131,960
Depreciation and Amortization
Total depreciation and amortization									21,763	21,321	14,991
Operating Income (loss)
Total operating income (loss)									47,466	60,604	40,491
Segment Assets
Total segment assets	265,786				270,248				265,786	270,248	260,931
Capital Expenditures
Total capital expenditures									23,535	27,043	11,956
Corporate office [Member]
Depreciation and Amortization
Total depreciation and amortization									4,179	3,656	3,200
Operating Income (loss)
Total operating income (loss)									(40,885)	(37,383)	(36,635)
Segment Assets
Total segment assets	$ 40,535				$ 27,991				40,535	27,991	30,330
Capital Expenditures
Total capital expenditures									$ 2,855	$ 2,742	$ 1,826

Segment and Related Informati_5

Segment and Related Information - Disaggregated Revenues for Fluids Systems Segment (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 189,471	$ 202,763	$ 216,412	$ 211,473	$ 247,664	$ 235,329	$ 236,262	$ 227,293	$ 820,119	$ 946,548	$ 747,763
United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									578,698	626,656	460,872
Canada [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									37,496	67,374	55,600
EMEA [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									123,114	124,510	102,247
Asia Pacific [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									15,273	17,733	4,081
Latin America [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									5,528	28,767	36,988
Fluids systems [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									620,317	715,813	615,803
Fluids systems [Member] | North America [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									427,253	476,826	395,397
Fluids systems [Member] | United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									395,618	410,410	341,075
Fluids systems [Member] | Canada [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									31,635	66,416	54,322
Fluids systems [Member] | International [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									193,064	238,987	220,406
Fluids systems [Member] | EMEA [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									172,263	192,537	179,360
Fluids systems [Member] | Asia Pacific [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									15,273	17,733	4,081
Fluids systems [Member] | Latin America [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									$ 5,528	$ 28,717	$ 36,965

Segment and Related Informati_6

Segment and Related Information - Disaggregated Revenues for Mats and Integrated Services Segment (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Segment Reporting Information [Line Items]
Revenues	$ 189,471	$ 202,763	$ 216,412	$ 211,473	$ 247,664	$ 235,329	$ 236,262	$ 227,293	$ 820,119	$ 946,548	$ 747,763
Mats and integrated services [Member]
Segment Reporting Information [Line Items]
Revenues									199,802	230,735	131,960
Service [Member] | Mats and integrated services [Member]
Segment Reporting Information [Line Items]
Revenues									73,130	93,056	34,943
Rental [Member] | Mats and integrated services [Member]
Segment Reporting Information [Line Items]
Revenues									70,207	81,784	61,124
Product sales [Member]
Segment Reporting Information [Line Items]
Revenues									654,006	743,342	628,401
Product sales [Member] | Mats and integrated services [Member]
Segment Reporting Information [Line Items]
Revenues									$ 56,465	$ 55,895	$ 35,893

Segment and Related Informati_7

Segment and Related Information - Financial Information by Geographical Area (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	$ 189,471	$ 202,763	$ 216,412	$ 211,473	$ 247,664	$ 235,329	$ 236,262	$ 227,293	$ 820,119	$ 946,548	$ 747,763
Long-Lived Assets	417,670				388,026				417,670	388,026	392,926
United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue									578,698	626,656	460,872
Long-Lived Assets	365,185				338,475				365,185	338,475	337,190
Canada [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue									37,496	67,374	55,600
Long-Lived Assets	2,129				3,284				2,129	3,284	3,993
Algeria [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue									60,010	81,508	87,975
EMEA [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue									123,114	124,510	102,247
Long-Lived Assets	46,447				41,774				46,447	41,774	46,269
Asia Pacific [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue									15,273	17,733	4,081
Long-Lived Assets	2,862				2,898				2,862	2,898	3,120
Latin America [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue									5,528	28,767	36,988
Long-Lived Assets	$ 1,047				$ 1,595				$ 1,047	$ 1,595	$ 2,354

Supplemental Cash Flow and Ot_3

Supplemental Cash Flow and Other Information - Supplemental Disclosures (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Supplemental Cash Flow Elements [Abstract]
Income taxes (net of refunds)	$ 12,165	$ 15,627	$ (20,396)
Interest	$ 8,718	$ 8,741	$ 8,718

Supplemental Cash Flow and Ot_4

Supplemental Cash Flow and Other Information - Cash, Cash Equivalents and Restricted Cash (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Supplemental Cash Flow Elements [Abstract]
Cash and cash equivalents	$ 48,672	$ 56,118	$ 56,352
Restricted cash (included in other current assets)	8,191	8,148	9,108
Cash, cash equivalents, and restricted cash	$ 56,863	$ 64,266	$ 65,460	$ 95,299

Supplemental Cash Flow and Ot_5

Supplemental Cash Flow and Other Information - Textual (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Supplemental Cash Flow Elements [Abstract]
Accrual for capital expenditures	$ 1.8	$ 4.2	$ 2.7
Employee-related liabilities	$ 21.6	$ 28.9

Discontinued Operations - Textu

Discontinued Operations - Textual (Details) - USD ($) $ in Thousands	1 Months Ended	12 Months Ended
	Mar. 31, 2014	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Loss from disposal of discontinued operations net of tax		$ 0	$ 0	$ 17,367
Environmental services [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from divestiture of businesses, increase (decrease) sales price	$ (22,000)
Loss from disposal of discontinued operations before income taxes				22,000
Loss from disposal of discontinued operations net of tax				$ 17,400

Discontinued Operations - Opera

Discontinued Operations - Operations from Discontinued Operations (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Discontinued Operations and Disposal Groups [Abstract]
Loss from disposal of discontinued operations before income taxes	$ 0	$ 0	$ 21,983
Loss from disposal of discontinued operations, net of tax	$ 0	$ 0	$ 17,367

Commitments and Contingencies -

Commitments and Contingencies - Textual (Details)	3 Months Ended			12 Months Ended
	Sep. 30, 2018USD ($)	Mar. 31, 2018USD ($)	Dec. 31, 2017USD ($)	Dec. 31, 2019USD ($)plaintiff	Dec. 31, 2018USD ($)	Mar. 31, 2014USD ($)
Loss Contingencies [Line Items]
Restricted cash			$ 9,108,000	$ 8,191,000	$ 8,148,000
Guarantee obligations due to closure of bonds					7,300,000
Asset retirement obligation				1,200,000	1,100,000
Performance Bonds [Member]
Loss Contingencies [Line Items]
Restricted cash				8,200,000
Mexico Tax Authority [Member] | Performance Bonds [Member]
Loss Contingencies [Line Items]
Performance bond outstanding				6,000,000
Health claims [Member]
Loss Contingencies [Line Items]
Threshold for claims to be insured by third party insurers				250,000
Accrued liabilities for uninsured portion of claims				800,000	800,000
Workers compensation auto and general liability claims [Member]
Loss Contingencies [Line Items]
Threshold for claims to be insured by third party insurers				750,000
Accrued liabilities for uninsured portion of claims				$ 1,900,000	2,200,000
Damage from Fire [Member] | Natural disasters and other casualty events [Member]
Loss Contingencies [Line Items]
Loss contingency, number of plaintiffs | plaintiff				19
Loss contingency, damages sought, value				$ 1,500,000
Loss contingency costs incurred					4,800,000
Insurance recoveries and recognized a charge	$ 800,000
Loss contingency, receivable	$ 4,000,000			300,000	600,000
Damage from Fire [Member] | Inventory and property, plant and equipment [Member]
Loss Contingencies [Line Items]
Loss contingency costs incurred					1,900,000
Damage from Fire [Member] | Property-related cleanup and other costs [Member]
Loss Contingencies [Line Items]
Loss contingency costs incurred					2,100,000
Damage from Fire [Member] | Self-insured retention for third-party claims [Member]
Loss Contingencies [Line Items]
Loss contingency costs incurred					$ 800,000
Ecoserv [Member] | Environmental services [Member]
Loss Contingencies [Line Items]
Escrow deposit						$ 8,000,000
Ecoserv [Member] | Environmental services [Member] | Settled litigation [Member]
Loss Contingencies [Line Items]
Litigation settlement, amount from other party		$ 22,000,000	22,000,000
Litigation settlement, amount awarded from other party, net of tax			$ 17,400,000
Litigation settlement, awarded to other party		$ 14,000,000
Credit Agreement [Member] | Performance Bonds [Member]
Loss Contingencies [Line Items]
Letters of credit outstanding, amount				$ 52,500,000

Supplemental Selected Quarter_3

Supplemental Selected Quarterly Financial Data (Unaudited) - Schedule of Quarterly Financial Data (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Quarterly Financial Information Disclosure [Abstract]
Revenues	$ 189,471	$ 202,763	$ 216,412	$ 211,473	$ 247,664	$ 235,329	$ 236,262	$ 227,293	$ 820,119	$ 946,548	$ 747,763
Operating income (loss)	(12,486)	6,288	10,914	5,679	20,523	10,054	19,143	13,838	10,395	63,558	31,436
Income (loss) from continuing operations	(17,093)	(1,441)	4,306	1,282	10,569	3,644	10,846	7,222	(12,946)	32,281	11,219
Net income (loss)	$ (17,093)	$ (1,441)	$ 4,306	$ 1,282	$ 10,569	$ 3,644	$ 10,846	$ 7,222	$ (12,946)	$ 32,281	$ (6,148)
Income (loss) per common share - basic:
Income from continuing operations (in dollars per share)	$ (0.19)	$ (0.02)	$ 0.05	$ 0.01	$ 0.12	$ 0.04	$ 0.12	$ 0.08	$ (0.14)	$ 0.36	$ 0.13
Net income (in dollars per share)	(0.19)	(0.02)	0.05	0.01	0.12	0.04	0.12	0.08	(0.14)	0.36	(0.07)
Income (loss) per common share - diluted:
Income from continuing operations (in dollars per share)	(0.19)	(0.02)	0.05	0.01	0.11	0.04	0.12	0.08	(0.14)	0.35	0.13
Net income (in dollars per share)	$ (0.19)	$ (0.02)	$ 0.05	$ 0.01	$ 0.11	$ 0.04	$ 0.12	$ 0.08	$ (0.14)	$ 0.35	$ (0.07)

Supplemental Selected Quarter_4

Supplemental Selected Quarterly Financial Data (Unaudited) - Textual (Details) - USD ($) $ in Thousands	3 Months Ended			12 Months Ended
	Dec. 31, 2019	Mar. 31, 2019	Sep. 30, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Severance costs		$ 500
Nondeductible goodwill impairment	$ 11,400			$ 11,422	$ 0	$ 0
Charges relating to facility closures and related exit costs, inventory write-downs and severeance costs	$ 6,700
Employees, non-directors [Member] | The 2015 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Plan modification, expense recognized		$ 4,000	$ 1,500