Income Taxes - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 22, 2017
Income Tax Disclosure [Abstract]
Measurement period adjustment, change in tax rate, income tax benefit		$ 3,576,000
Measurement period adjustment, transition tax for accumulated foreign earnings, income tax expense		5,026,000
Additional U.S. tax act- transition tax	$ 1,661
U.S. tax act - transition tax	20,434,000	18,773,000
Unremitted foreign earnings	$ 727,000,000			$ 495,000,000
Income tax holiday term	10 years
Income tax holiday, percent	1.50%
Income tax holiday, aggregate dollar amount	$ 15,030,000
Payments for income taxes net of refunds	10,244,000	19,763,000	$ 67,782,000
Operating Loss Carryforwards [Line Items]
Valuation allowances	27,270,000	$ 22,620,000
Recognition of unrecognized tax benefit upon which the effective rate would change	9,934,000
Unrecognized tax benefit that would impact effective tax rate	8,468,000
Interest on income tax expense (benefit)	1,262,000
Unrecognized tax benefits interest on income taxes accrued	1,353,000
United States
Operating Loss Carryforwards [Line Items]
Tax loss carryforward domestic	6,560,000
Foreign
Operating Loss Carryforwards [Line Items]
Tax loss carryforward domestic	$ 76,748,000