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Income Taxes - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Tax Examination [Line Items]
Provision for income taxes	$ 40,606,000	$ 25,085,000	$ 9,907,000
Effective tax rates	22.10%	32.00%	14.70%
Effective income tax rate reconciliation at federal statutory income tax rate	21.00%	21.00%	21.00%	35.00%
Basis in foreign subsidiary	$ 239,073,000
Deferred tax assets valuation allowance	$ 239,100,000
Exemption of tax credit	1.00%	2.20%	2.30%
Valuation allowance against deferred tax assets	$ 241,225,000	$ 6,859,000
Federal net operating loss carryforwards	0	0
Foreign net operating loss carryforwards	100,000	100,000
State net operating loss carry forwards	$ 170,000,000.0	220,800,000
Operating loss carryforwards expiration start year	2022
Operating loss carryforwards expiration end year	2035
Expiration of State tax credits	2030
State tax credits	$ 600,000
Income taxes receivable	897,000	4,786,000
Income tax payable included in other accrued liabilities	16,345,000
Unrecognized tax benefits	2,060,000	2,441,000	$ 713,000
Cumulative amounts of interest and penalties recognized	500,000	600,000
Unrecognized tax benefits would impact effective tax rate	$ 400,000
Foreign dividends			$ 10,900
Earliest Tax Year [Member] \| Internal Revenue Service (IRS) [Member]
Income Tax Examination [Line Items]
Period of examination by internal revenue service	2017
Latest Tax Year [Member] \| Internal Revenue Service (IRS) [Member]
Income Tax Examination [Line Items]
Period of examination by internal revenue service	2019
Other Liabilities [Member]
Income Tax Examination [Line Items]
Unrecognized tax benefits	$ 2,500,000	$ 3,100,000
Foreign Tax Authority [Member]
Income Tax Examination [Line Items]
Period of examination by internal revenue service minimum	2016
Period of examination by internal revenue service maximum	2019
State and Local Jurisdiction [Member]
Income Tax Examination [Line Items]
Period of examination by internal revenue service minimum	2014
Period of examination by internal revenue service maximum	2019
Maximum [Member]
Income Tax Examination [Line Items]
Exemption of tax credit	50.00%
Maximum [Member] \| Payroll [Member]
Income Tax Examination [Line Items]
Exemption of tax credit	15.00%