OTHER INTANGIBLE ASSETS, NET (Detail) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Finite Lived Intangible Assets [Line Items]
Gross	$ 1,040,449	$ 1,049,810
Accumulated Amortization	(471,845)	(440,180)
Net	568,604	609,630
Technology [Member]
Finite Lived Intangible Assets [Line Items]
Gross	275,817	280,595
Accumulated Amortization	(157,064)	(148,064)
Net	118,753	132,531
Customer Relationships [Member]
Finite Lived Intangible Assets [Line Items]
Gross	570,874	573,722
Accumulated Amortization	(256,534)	(239,798)
Net	314,340	333,924
Contract and Program Intangible Assets [Member]
Finite Lived Intangible Assets [Line Items]
Gross	144,000	144,000
Accumulated Amortization	(23,400)	(19,800)
Net	120,600	124,200
Other Intangible Assets [Member]
Finite Lived Intangible Assets [Line Items]
Gross	49,758	51,493
Accumulated Amortization	(34,847)	(32,518)
Net	$ 14,911	$ 18,975