Financing Arrangements (Asset Based Revolving Credit Facility) - Additional Information (Detail) € in Thousands, ¥ in Thousands	1 Months Ended	3 Months Ended		9 Months Ended
	Jan. 31, 2019 EUR (€)	Sep. 30, 2019 USD ($)	Sep. 30, 2018 USD ($)	Sep. 30, 2019 USD ($)	Sep. 30, 2018 USD ($)	Sep. 30, 2019 JPY (¥)	Sep. 30, 2019 USD ($)	Jan. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Jun. 30, 2018 USD ($)	Dec. 31, 2017 USD ($)
Debt Instrument [Line Items]
Asset-based credit facilities							$ 110,711,000		$ 40,300,000	$ 4,300,000
Cash and cash equivalents							88,216,000		63,981,000	70,821,000	$ 85,674,000
Total available liquidity							340,186,000			330,220,000
Asset-based credit facility, maximum borrowing capacity							400,000,000
Equipment note, short-term							7,296,000		2,411,000
Equipment note, long-term							445,019,000		7,218,000
Long-term Debt, Gross							468,494,000
Interest Income		$ 94,000	$ 70,000	$ 759,000	$ 485,000
United States
Debt Instrument [Line Items]
Asset-based credit facility, maximum borrowing capacity							260,000,000
Germany
Debt Instrument [Line Items]
Asset-based credit facility, maximum borrowing capacity							70,000,000
Canada
Debt Instrument [Line Items]
Asset-based credit facility, maximum borrowing capacity							25,000,000
United Kingdom
Debt Instrument [Line Items]
Asset-based credit facility, maximum borrowing capacity							$ 45,000,000
Bank of America, N.A.
Debt Instrument [Line Items]
Amount outstanding under letters of credit										$ 1,205,000
Average outstanding borrowing				147,289,000
Average available liquidity				$ 161,009,000
Asset-based credit facility, maturity date				May 31, 2024
Debt covenants , dividend restrictions				In addition, the ABL Facility imposes restrictions on the amount the Company could pay in annual cash dividends, including certain restrictions on the amount of additional indebtedness and requirements to maintain a certain fixed charge coverage ratio under certain circumstances.
Debt Covenant, Borrowing Base Below Threshold, Period Ratio Required to be in Compliance				30 days
Fixed Charge Coverage Ratio Covenant Reference Borrowing Capacity, Percent				10.00%
Fixed Charge Coverage Ratio Covenant Reference Borrowing Capacity				$ 40,000,000
Asset-based credit facility, interest rate						4.69%	4.69%
Asset-based credit facility, Monthly fees on unused portion				0.25%
Asset-based credit facility, origination fees							$ 3,296,000
Unamortized origination fees							2,298,000		1,825,000
Bank of America, N.A. | Other Current Assets
Debt Instrument [Line Items]
Asset-based credit facility, origination fees included in other current assets							745,000		476,000
Bank of America, N.A. | Other Assets
Debt Instrument [Line Items]
Asset-based credit facility, origination fees included in other long-term assets							1,553,000		1,349,000
Japan Credit Facility, 1 | The Bank Of Tokyo-Mitsubishi UFJ
Debt Instrument [Line Items]
Asset-based credit facilities						¥ 3,200,000	29,609,000
Asset-based credit facility, maximum borrowing capacity						¥ 4,000,000	$ 37,012,000
Applicable margin rate reduction				subject to an effective interest rate equal to the Tokyo interbank offered rate plus 0.80%
Asset-based credit facility, interest rate						0.86%	0.86%
Debt instrument term				3 years
Japan Credit Facility, 1 | The Bank Of Tokyo-Mitsubishi UFJ | Tokyo Interbank Offered Rate (TIBOR)
Debt Instrument [Line Items]
Basis spread on variable rate on debt				0.80%
Japan Credit Facility 2 | The Bank Of Tokyo-Mitsubishi UFJ | Tokyo Interbank Offered Rate (TIBOR)
Debt Instrument [Line Items]
Applicable margin rate reduction				subject to an effective interest rate equal to the Tokyo Interbank Offered Rate (TIBOR) plus 1.0%
Basis spread on variable rate on debt				1.00%
Japan Credit Facility 2 | The Bank of Tokyo-Mitsubishi UFG Ltd
Debt Instrument [Line Items]
Asset-based credit facilities						¥ 2,000,000	$ 18,506,000
Asset-based credit facility, maximum borrowing capacity | ¥						¥ 2,000,000
Asset-based credit facility, interest rate						1.07%	1.07%
Debt instrument term				1 year
Intellectual Property [Member]
Debt Instrument [Line Items]
Line Of Credit, Maximum Borrowing Capacity, Quarterly Reduction Period				3 years
Real Estate [Member]
Debt Instrument [Line Items]
Line Of Credit, Maximum Borrowing Capacity, Quarterly Reduction Period				15 years
Secured Debt | 2017 Equipment Note
Debt Instrument [Line Items]
Asset-based credit facility, interest rate						3.79%	3.79%
Long-term Debt							$ 7,933,000		9,629,000
Equipment note, short-term							$ 2,444,000		2,411,000
Equipment note, long-term			5,489,000		5,489,000				$ 7,218,000
Note amortization period		5 years
Interest Expense, Debt		$ 252,000
Secured Debt | 2019 Equipment Note
Debt Instrument [Line Items]
Asset-based credit facility, interest rate						3.21%	3.21%
Long-term Debt							$ 12,969,000
Equipment note, short-term							2,642,000
Equipment note, long-term			$ 10,327,000		$ 10,327,000
Note amortization period		5 years
Interest Expense, Debt		$ 36,000
Secured Debt | Term Loan Facility
Debt Instrument [Line Items]
Long-term Debt							447,600,000
Equipment note, short-term							4,800,000
Debt Issuance Costs, Net							16,186,000
Debt Instrument, Face Amount								$ 480,000,000
Interest Expense, Debt		7,902,000		$ 24,449,000
Debt Instrument, Periodic Payment, Principal				1,200,000
Debt Issuance Costs, Gross								9,600,000
Long Term Debt, Maximum Additional Loan Commitments, Amounts								225,000,000
Line Of Credit Facility Covenant Terms, First Lien Net Leverage Ratio For Unlimited Commitment	2.25
Interest Income		$ 1,578,000		$ 3,865,000
Secured Debt | Term Loan Facility, Short-Term Portion
Debt Instrument [Line Items]
Debt Issuance Costs, Net							2,590,000
Secured Debt | Term Loan Facility, Long-Term Portion
Debt Instrument [Line Items]
Debt Issuance Costs, Net							$ 13,597,000
Maximum | London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Basis spread on variable rate on debt	4.50%
Maximum | Secured Debt | Term Loan Facility | London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Basis spread on variable rate on debt				4.50%
Minimum | London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Basis spread on variable rate on debt	4.60%
Minimum | Secured Debt | Term Loan Facility | London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Basis spread on variable rate on debt				3.50%
Interest Rate Swap
Debt Instrument [Line Items]
Long-term Debt, Gross								$ 200,357,000
Currency Swap
Debt Instrument [Line Items]
Hedging Liabilities, Noncurrent | €	€ 176,200