Financing Arrangements (Details Textual)	1 Months Ended	3 Months Ended	12 Months Ended
	May 31, 2016 USD ($)	Jun. 30, 2017 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2017 USD ($) trading_day $ / shares shares	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Oct. 31, 2017 USD ($)	May 12, 2016 USD ($)	Mar. 31, 2015 USD ($)
Long-term debt					$ 160,475,000	$ 156,268,000
Conversion price percentage					130.00%
Business day period					5 days
Consecutive trading day period					5 days
Percent threshold last reported sale price					98.00%
Net deferred tax liabilities					$ (26,827,000)	(36,996,000)
Long-term debt, excluding current maturities					158,957,000	72,900,000
Non-cash charge, interest expense						1,058,000	$ 0
Current debt					1,518,000	83,368,000
Restricted cash and cash equivalents, current					7,600,000
Interest expense					13,300,000	9,900,000	9,100,000
Interest costs capitalized						900,000	$ 1,100,000
Prepaid Expenses and Other Current Assets [Member]
Restricted cash and cash equivalents, current					9,100,000	7,400,000
Foreign Operations [Member]
Current debt					1,000,000	0
Restricted cash and cash equivalents, current					$ 1,500,000
Scenario, forecast [Member]
Repayments of debt			$ 81,600,000	$ 100,000,000
Interest costs capitalized				$ 100,000
Senior notes [Member]
Debt conversion, converted shares for basis principal (shares) | shares					107.1381
Debt conversion, principal amount as basis for conversion rate					$ 1,000
Debt instrument, convertible, threshold trading days | trading_day					20
Debt instrument, convertible, threshold consecutive trading days | trading_day					30
Net deferred tax liabilities					$ (8,700,000)
Interest rate, effective percentage					11.30%
Convertible Notes due 2017 [Member]
Long-term debt						83,300,000
Convertible Notes due 2017 [Member] | Senior notes [Member]
Debt instrument, face amount					$ 172,500,000.0
Interest rate, stated percentage					4.00%
Debt conversion, converted shares for basis principal (shares) | shares					90.8893
Debt Instrument, convertible, conversion price (in dollars per share) | $ / shares					$ 11.00
Debt repurchase, principal						89,300,000
Repayments of debt						87,300,000
Gain (loss) on repurchase of debt						1,600,000
Long-term debt					$ 0	82,988,000
Convertible Notes due 2021 [Member] | Senior notes [Member]
Debt instrument, face amount					$ 100,000,000	100,000,000.0
Interest rate, stated percentage					4.00%
Debt Instrument, convertible, conversion price (in dollars per share) | $ / shares					$ 9.33
Long-term debt					$ 77,357,000	72,900,000
ABL Facility [Member] | Federal Funds Rate [Member]
Base rate basis spread on variable rate	0.50%
ABL Facility [Member] | London Interbank Offered Rate (LIBOR) [Member]
Base rate basis spread on variable rate	1.00%
Basis spread on variable rate					2.00%
ABL Facility [Member] | Base Rate [Member]
Basis spread on variable rate					1.00%
ABL Facility [Member] | Minimum [Member] | London Interbank Offered Rate (LIBOR) [Member]
Basis spread on variable rate	1.75%
ABL Facility [Member] | Minimum [Member] | Base Rate [Member]
Basis spread on variable rate	0.75%
ABL Facility [Member] | Maximum [Member] | London Interbank Offered Rate (LIBOR) [Member]
Basis spread on variable rate	2.75%
ABL Facility [Member] | Maximum [Member] | Base Rate [Member]
Basis spread on variable rate	1.75%
ABL Facility [Member] | Revolving Credit Facility [Member]
Long-term debt					$ 81,600,000	$ 0
Maximum borrowing capacity	$ 90,000,000.0							$ 225,000,000.0
Fixed charge coverage ratio, amount	25,000,000								$ 22,500,000.0
Current borrowing capacity					136,200,000
Secured debt outstanding					81,600,000
Remaining borrowing capacity					$ 54,600,000
Weighted average interest rate					3.90%
Unused capacity, commitment fee percentage					0.375%
Covenant terms acceleration of other indebtedness									$ 25,000,000.0
ABL Facility [Member] | Revolving Credit Facility [Member] | Minimum [Member]
Unused capacity, commitment fee percentage					0.25%
ABL Facility [Member] | Revolving Credit Facility [Member] | Maximum [Member]
Maximum borrowing capacity	150,000,000.0
Unused capacity, commitment fee percentage					0.375%
Credit Agreement [Member]
Letters of credit outstanding, amount					$ 7,200,000
Credit Agreement [Member] | Foreign Operations [Member]
Letters of credit outstanding, amount					21,600,000
Credit Agreement [Member] | Revolving Credit Facility [Member]
Maximum borrowing capacity					150,000,000					$ 200,000,000
Long-term line of credit	$ 0
Non-cash charge, interest expense		$ 1,100,000
Convertible debt, debt component [Member]
Debt issuance cost					2,700,000
Long-term debt, excluding current maturities					77,400,000
Unamortized debt discount					20,400,000
Debt issuance cost					$ 2,200,000
Convertible debt, debt component [Member] | Senior notes [Member]
Interest rate, stated percentage					10.50%
Debt instrument, fair value					$ 75,200,000
Convertible debt, equity component [Member]
Debt instrument, conversion equity amount					24,800,000
Debt issuance cost					900,000
Debt instrument, conversion equity, carrying amount net of issuance costs and deferred tax liability					$ 15,200,000