Property and Equipment - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Property and Equipment [Line Items]
Computer software development costs capitalized	$ 30,400	$ 22,000
Interest cost paid	1,600	1,600	$ 1,700
Interest costs capitalized	600	800	800
Retainage amount included in construction in progress	2,200	100
Depreciation and amortization	21,800	15,125	9,805
Property and Equipment [Member]
Property and Equipment [Line Items]
Depreciation and amortization	$ 42,000	$ 29,400	$ 18,500