Income Taxes - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Tax Contingency [Line Items]
Pension, restructuring and other non recurring costs	$ 10,500,000
Income tax expense (benefit)	11,576,000	$ (9,242,000)	$ 7,723,000
Offsetting of income tax	6,100,000
Valuation allowance	23,305,000	28,485,000
Research and development, tax credit	3,300,000	2,800,000	(100,000)
Unremitted earnings of subsidiaries outside the United States, reinvested	109,000,000	62,000,000.0
Deferred tax liability	0
Gross unrecognized tax benefits	46,300,000	$ 30,500,000	$ 29,600,000	$ 26,900,000
Unrecognized tax benefits that would impact effective tax rate	35,800,000
Minimum [Member]
Income Tax Contingency [Line Items]
Gross unrecognized tax benefits balance may decrease within the next twelve months	0
Maximum [Member]
Income Tax Contingency [Line Items]
Gross unrecognized tax benefits balance may decrease within the next twelve months	6,100,000
United States - Federal [Member]
Income Tax Contingency [Line Items]
Net operating loss carryforwards	$ 10,000,000.0
Net operating loss carryforwards expiration year	2037
Tax credit carryforwards	$ 14,200,000
Tax credit carryforwards expiration year	2034
State and Local Jurisdiction [Member]
Income Tax Contingency [Line Items]
Net operating loss carryforwards	$ 199,300,000
Net operating loss carryforwards expiration year	2021
Tax credit carryforwards	$ 3,400,000
Tax credit carryforwards expiration year	2021
Foreign Tax Authority [Member]
Income Tax Contingency [Line Items]
Net operating loss carryforwards	$ 3,600,000
Net operating loss carryforwards expiration year	2024
Pension, Restructuring, and Other Non-Recurring Costs [Member]
Income Tax Contingency [Line Items]
Income tax expense (benefit)	$ 0