OTHER INTANGIBLE ASSETS, NET (Detail) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Finite Lived Intangible Assets [Line Items]
Gross	$ 783,230	$ 651,310
Accumulated Amortization	(334,134)	(321,642)
Net	449,096	329,668
Technology [Member]
Finite Lived Intangible Assets [Line Items]
Gross	240,101	243,440
Accumulated Amortization	(118,477)	(114,036)
Net	121,624	129,404
Customer Relationships [Member]
Finite Lived Intangible Assets [Line Items]
Gross	362,015	367,230
Accumulated Amortization	(185,281)	(180,580)
Net	176,734	186,650
Contract and Program Intangible Assets [Member]
Finite Lived Intangible Assets [Line Items]
Gross	139,000
Accumulated Amortization	(1,738)
Net	137,262
Other Intangible Assets [Member]
Finite Lived Intangible Assets [Line Items]
Gross	42,114	40,640
Accumulated Amortization	(28,638)	(27,026)
Net	$ 13,476	$ 13,614