OTHER INTANGIBLE ASSETS, NET (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Finite-Lived Intangible Assets [Line Items]
Finite Lived Intangible Assets Gross	$ 1,049,810	$ 879,897
Finite Lived Intangible Assets Accumulated Amortization	(440,180)	(399,990)
Other intangible assets, net	609,630	479,907
Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Finite Lived Intangible Assets Gross	280,595	257,676
Finite Lived Intangible Assets Accumulated Amortization	(148,064)	(140,390)
Other intangible assets, net	132,531	117,286
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Finite Lived Intangible Assets Gross	573,722	434,492
Finite Lived Intangible Assets Accumulated Amortization	(239,798)	(215,855)
Other intangible assets, net	333,924	218,637
Contract and Program Intangible Assets [Member]
Finite-Lived Intangible Assets [Line Items]
Finite Lived Intangible Assets Gross	144,000	144,000
Finite Lived Intangible Assets Accumulated Amortization	(19,800)	(12,600)
Other intangible assets, net	124,200	131,400
Other Intangible Assets [Member]
Finite-Lived Intangible Assets [Line Items]
Finite Lived Intangible Assets Gross	51,493	43,729
Finite Lived Intangible Assets Accumulated Amortization	(32,518)	(31,145)
Other intangible assets, net	$ 18,975	$ 12,584