Goodwill and Other Intangible Assets (Intangible Assets) (Detail) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 314,737	$ 247,711
Accumulated Amortization	142,875	134,530
Net Carrying Amount	171,862	113,181
Indefinite-lived other intangible asset	4,491	4,845
Total other intangible assets, gross carrying amount	319,228	252,556
Total other intangible assets, net carrying amount	176,353	118,026
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	198,095	150,863
Accumulated Amortization	77,870	72,014
Net Carrying Amount	120,225	78,849
Technology
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	88,445	83,469
Accumulated Amortization	54,900	53,540
Net Carrying Amount	33,545	29,929
Trademarks and trade names
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	25,504	12,039
Accumulated Amortization	8,968	8,149
Net Carrying Amount	16,536	3,890
Covenants not to compete
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	2,693	1,340
Accumulated Amortization	1,137	827
Net Carrying Amount	$ 1,556	$ 513