Financing Arrangements and Fair Value of Financial Instruments - Narrative (Details)		1 Months Ended		3 Months Ended		9 Months Ended
	Nov. 03, 2020 USD ($)	Nov. 30, 2020	Mar. 31, 2019 USD ($)	Sep. 30, 2020 USD ($) $ / shares	Sep. 30, 2019 USD ($)	Sep. 30, 2020 USD ($) trading_day $ / shares	Sep. 30, 2019 USD ($)	Dec. 31, 2019 USD ($)	Dec. 31, 2016 USD ($)
Debt Instrument [Line Items]
Principal amount outstanding				$ 107,617,000		$ 107,617,000		$ 172,164,000
Long-term debt, excluding current maturities				92,206,000		92,206,000		153,538,000
Unamortized debt discount and debt issuance costs				5,262,000		5,262,000		12,291,000
Net gain				0	$ 0	(419,000)	$ 0
Current debt				10,149,000		10,149,000		6,335,000
Foreign Operations
Debt Instrument [Line Items]
Current debt				7,900,000		7,900,000		4,800,000
Convertible Debt, Debt Component
Debt Instrument [Line Items]
Long-term debt, excluding current maturities				61,700,000		61,700,000
Unamortized debt discount and debt issuance costs				$ 5,300,000		$ 5,300,000
Senior Notes
Debt Instrument [Line Items]
Debt instrument, convertible, threshold trading days | trading_day						20
Debt instrument, convertible, threshold consecutive trading days | trading_day						30
Conversion price percentage						130.00%
Business day period						5 days
Consecutive trading day period						5 days
Debt conversion rate						0.1071381
Percent threshold last reported sale price						98.00%
Interest rate, effective percentage				11.30%		11.30%
Convertible Notes
Debt Instrument [Line Items]
Repurchased face amount				$ 33,100,000		$ 33,100,000		0
Repurchase amount				29,100,000		29,100,000
Net gain						(400,000)
Convertible Notes | Senior Notes
Debt Instrument [Line Items]
Debt instrument, face amount									$ 100,000,000.0
Principal amount outstanding				$ 66,912,000		$ 66,912,000		100,000,000
Interest rate, stated percentage									4.00%
Debt instrument, convertible, conversion price (in dollars per share) | $ / shares				$ 9.33		$ 9.33
Unamortized debt discount and debt issuance costs				$ 5,262,000		$ 5,262,000		12,291,000
Convertible debt, fair value				59,200,000		$ 59,200,000		101,400,000
ABL Facility | Subsequent Event
Debt Instrument [Line Items]
Basis spread on variable rate		0.50%
ABL Facility | Federal Funds Rate
Debt Instrument [Line Items]
Base rate basis spread on variable rate			0.50%
ABL Facility | London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Base rate basis spread on variable rate			1.00%
Basis spread on variable rate						1.50%
ABL Facility | London Interbank Offered Rate (LIBOR) | Minimum
Debt Instrument [Line Items]
Basis spread on variable rate			1.50%
ABL Facility | London Interbank Offered Rate (LIBOR) | Maximum
Debt Instrument [Line Items]
Basis spread on variable rate			2.00%
ABL Facility | Base Rate
Debt Instrument [Line Items]
Basis spread on variable rate						0.50%
ABL Facility | Base Rate | Minimum
Debt Instrument [Line Items]
Basis spread on variable rate			0.50%
ABL Facility | Base Rate | Maximum
Debt Instrument [Line Items]
Basis spread on variable rate			1.00%
ABL Facility | Revolving Credit Facility
Debt Instrument [Line Items]
Principal amount outstanding				29,900,000		$ 29,900,000		$ 65,000,000
Maximum borrowing capacity			$ 200,000,000.0	99,000,000.0		99,000,000.0
Maximum borrowing capacity, maximum			$ 275,000,000.0
Drawn				29,900,000		29,900,000
Remaining borrowing capacity				$ 69,100,000		$ 69,100,000
Fixed charge coverage ratio			1.0
Line of credit facility, covenant fixed charge coverage ratio, calculation period			12 months
Line of credit, covenant, unused availability			$ 25,000,000.0
Debt, weighted average interest rate				1.90%		1.90%
Unused capacity, commitment fee percentage						0.375%
Line of credit facility, fixed charge coverage ratio, amount			22,500,000
Covenant terms acceleration of other indebtedness			$ 25,000,000.0
ABL Facility | Revolving Credit Facility | Mats and Integrated Services
Debt Instrument [Line Items]
Fixed charge coverage ratio			1.5
Line of credit facility, covenant fixed charge coverage ratio, calculation period			12 months
Line of credit, covenant, operating income			$ 1,000,000.0
Line of credit facility, covenant, operating income, calculation period			12 months
ABL Facility | Revolving Credit Facility | Subsequent Event
Debt Instrument [Line Items]
Remaining borrowing capacity	$ 83,300,000
Line of credit facility, current borrowing capacity	112,300,000
Reduction in the borrowing availability	29,000,000.0
Reduction in borrowing availability	25,300,000
ABL Facility | Revolving Credit Facility | Subsequent Event | Mats and Integrated Services
Debt Instrument [Line Items]
Line of credit facility, current borrowing capacity	$ 25,300,000
ABL Facility | Revolving Credit Facility | Minimum
Debt Instrument [Line Items]
Fixed charge coverage ratio			1.25
Unused capacity, commitment fee percentage						0.25%
ABL Facility | Revolving Credit Facility | Maximum
Debt Instrument [Line Items]
Unused capacity, commitment fee percentage						0.375%
Credit Agreement | Domestic Line of Credit
Debt Instrument [Line Items]
Letters of credit outstanding, amount				$ 57,500,000		$ 57,500,000
Restricted cash and cash equivalents, current				$ 6,300,000		$ 6,300,000