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Other Comprehensive Income (Loss) (Amounts Included in Accumulated Other Comprehensive Income (Loss)) (Detail) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2020 | Jun. 30, 2020 | Mar. 31, 2020 | Sep. 30, 2019 | Jun. 30, 2019 | Mar. 31, 2019 | Sep. 30, 2020 | Sep. 30, 2019
Components of Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |  |  |  |
Stockholders' Equity Attributable to Parent, Beginning Balance |  |  | $ 6,933,504 |  |  |  | $ 6,933,504 |
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax | $ 45,886 | $ 83,093 | (184,717) | $ (24,911) | $ 43,135 | $ 42,180 | (55,738) | $ 60,404
Stockholders' Equity Attributable to Parent, Ending Balance | 6,661,934 |  |  |  |  |  | 6,661,934 |
Foreign currency translation adjustment | 45,886 | 83,093 | (184,717) | (24,911) | 43,135 | 42,180 | (55,738) | 60,404
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) | (10,963) | (74,786)
Amounts reclassified into earnings |  |  |  |  |  |  | 3,377 | 5,085
Change in fair value |  |  |  |  |  |  | (50,014) | (41,761)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax | 45,886 | 83,093 | (184,717) | (24,911) | 43,135 | 42,180 | (55,738) | 60,404
Stockholders' Equity Attributable to Parent, Ending Balance | (113,338) |  |  | (61,228) |  |  | (113,338) | (61,228)
Foreign currency translation adjustment | 45,886 | $ 83,093 | (184,717) | (24,911) | $ 43,135 | 42,180 | (55,738) | 60,404
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 | (29,255) | 8,892
Amounts reclassified into earnings |  |  |  |  |  |  | 3,377 | 5,085
Change in fair value |  |  |  |  |  |  | (50,014) | (41,761)
Stockholders' Equity Attributable to Parent, Ending Balance | (75,892) |  |  | (37,954) |  |  | (75,892) | (37,954)
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) | 18,292 | (83,678)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax |  |  |  |  |  |  | (55,738) | 60,404
Stockholders' Equity Attributable to Parent, Ending Balance | $ (37,446) |  |  | $ (23,274) |  |  | (37,446) | (23,274)
Foreign currency translation adjustment |  |  |  |  |  |  | $ (55,738) | $ 60,404

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