Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2020
Income Taxes [Line Items]
Income tax expense	$ 7,517	$ 13,596
Effective tax rate	27.30%	25.30%
Deferred tax assets, valuation allowance	$ 100
Statutory Effective Tax Rate [Member]
Income Taxes [Line Items]
U.S. federal statutory rate	21.00%
State income tax rate, net of federal benefit	3.70%
Forecast [Member]
Income Taxes [Line Items]
Effective tax rate			27.30%