OTHER INTANGIBLE ASSETS, NET (Detail) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Finite Lived Intangible Assets [Line Items]
Gross	$ 918,694	$ 879,897
Accumulated Amortization	(441,830)	(399,990)
Net	476,864	479,907
Technology [Member]
Finite Lived Intangible Assets [Line Items]
Gross	265,241	257,676
Accumulated Amortization	(150,363)	(140,390)
Net	114,878	117,286
Customer Relationships [Member]
Finite Lived Intangible Assets [Line Items]
Gross	463,186	434,492
Accumulated Amortization	(239,688)	(215,855)
Net	223,498	218,637
Contract and Program Intangible Assets [Member]
Finite Lived Intangible Assets [Line Items]
Gross	144,000	144,000
Accumulated Amortization	(18,000)	(12,600)
Net	126,000	131,400
Other Intangible Assets [Member]
Finite Lived Intangible Assets [Line Items]
Gross	46,267	43,729
Accumulated Amortization	(33,779)	(31,145)
Net	$ 12,488	$ 12,584