Other Comprehensive Income (Loss) (Amounts Included in Accumulated Other Comprehensive Income (Loss)) (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Components of Other Comprehensive Income (Loss) [Line Items]
Stockholders' Equity Attributable to Parent, Beginning Balance	$ 6,933,504
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax	(184,717)	$ 42,180
Stockholders' Equity Attributable to Parent, Ending Balance	6,682,378
Foreign currency translation adjustment	(184,717)	42,180
Accumulated Other Comprehensive Income (Loss) [Member]
Components of Other Comprehensive Income (Loss) [Line Items]
Stockholders' Equity Attributable to Parent, Beginning Balance	(10,963)	(74,786)
Amounts reclassified into earnings	(323)	1,817
Change in fair value	(42,649)	(11,555)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax	(184,717)	42,180
Stockholders' Equity Attributable to Parent, Ending Balance	(238,652)	(45,978)
Foreign currency translation adjustment	(184,717)	42,180
Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member] | Interest Rate Swap [Member]
Components of Other Comprehensive Income (Loss) [Line Items]
Stockholders' Equity Attributable to Parent, Beginning Balance	(29,255)	8,892
Amounts reclassified into earnings	(323)	1,817
Change in fair value	(42,649)	(11,555)
Stockholders' Equity Attributable to Parent, Ending Balance	(72,227)	(4,480)
Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member] | Foreign Currency Translation Adjustment [Member]
Components of Other Comprehensive Income (Loss) [Line Items]
Stockholders' Equity Attributable to Parent, Beginning Balance	18,292	(83,678)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax	(184,717)	42,180
Stockholders' Equity Attributable to Parent, Ending Balance	(166,425)	(41,498)
Foreign currency translation adjustment	$ (184,717)	$ 42,180