Goodwill and Other Intangibles - Summary of Other Intangible Assets and Accumulated Amortization Balances (Detail) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Intangible Assets [Line Items]
Gross Carrying Value	$ 148,524	$ 155,264
Accumulated Amortization	(105,665)	(108,843)
Net Carrying Value	42,859	46,421
Net Carrying Value	42,859	46,421
Customer Relationships
Intangible Assets [Line Items]
Gross Carrying Value	93,444	97,815
Accumulated Amortization	(61,816)	(63,432)
Net Carrying Value	31,628	34,383
Technology
Intangible Assets [Line Items]
Gross Carrying Value	29,378	30,615
Accumulated Amortization	(23,565)	(24,075)
Net Carrying Value	5,813	6,540
Product Development Costs
Intangible Assets [Line Items]
Gross Carrying Value	21,032	22,164
Accumulated Amortization	(20,284)	(21,336)
Net Carrying Value	748	828
Tradenames
Intangible Assets [Line Items]
Net Carrying Value	$ 4,670	$ 4,670