Property and Equipment - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Property and Equipment [Line Items]
Computer software development costs capitalized	$ 9,700	$ 8,900
Interest cost paid	400	400
Interest costs capitalized	400	100
Retainage amount included in construction in progress	2,500	2,200
Depreciation and amortization	6,285	4,805
Property and Equipment [Member]
Property and Equipment [Line Items]
Depreciation and amortization	$ 12,200	$ 9,300