Goodwill and Other Intangibles - Summary of Other Intangible Assets and Accumulated Amortization Balances (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Intangible Assets [Line Items]
Gross Carrying Value	$ 155,264	$ 138,895
Accumulated Amortization	(108,843)	(89,112)
Net Carrying Value	46,421	49,783
Net Carrying Value	46,421	49,783
Customer Relationships
Intangible Assets [Line Items]
Gross Carrying Value	97,815	89,208
Accumulated Amortization	(63,432)	(50,687)
Net Carrying Value	34,383	38,521
Technology
Intangible Assets [Line Items]
Gross Carrying Value	30,615	25,106
Accumulated Amortization	(24,075)	(19,866)
Net Carrying Value	6,540	5,240
Product Development Costs
Intangible Assets [Line Items]
Gross Carrying Value	22,164	19,911
Accumulated Amortization	(21,336)	(18,559)
Net Carrying Value	828	1,352
Tradenames
Intangible Assets [Line Items]
Net Carrying Value	$ 4,670	$ 4,670