Property and Equipment - Schedule of Property and Equipment and Accumulated Depreciation and Amortization (Detail) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Property and Equipment [Line Items]
Property and equipment, gross	$ 578,420	$ 546,467
Less: accumulated depreciation and amortization	(263,278)	(242,652)
Property and equipment, net	362,505	348,953
Software and Capitalized Software Costs [Member]
Property and Equipment [Line Items]
Property and equipment, gross	217,501	199,470
Buildings [Member]
Property and Equipment [Line Items]
Property and equipment, gross	175,878	172,807
Computer Equipment [Member]
Property and Equipment [Line Items]
Property and equipment, gross	109,838	102,509
Rental Clocks [Member]
Property and Equipment [Line Items]
Property and equipment, gross	31,833	30,313
Furniture, Fixtures and Equipment [Member]
Property and Equipment [Line Items]
Property and equipment, gross	26,851	24,971
Other [Member]
Property and Equipment [Line Items]
Property and equipment, gross	16,519	16,397
Property and Equipment, net, Excluding Land and Construction in Progress [Member]
Property and Equipment [Line Items]
Property and equipment, net	315,142	303,815
Construction in Progress [Member]
Property and Equipment [Line Items]
Property and equipment, net	13,567	11,342
Land [Member]
Property and Equipment [Line Items]
Property and equipment, net	$ 33,796	$ 33,796