Long-term Debt (Detail) - USD ($) $ in Thousands |
Sep. 30, 2016 |
Dec. 31, 2015 |
|---|---|---|
| Debt Instrument [Line Items] | ||
| Senior notes | $ 4,500,000 | $ 4,500,000 |
| Acquisition obligations and other notes payable | 111,407 | 70,645 |
| Capital lease obligations | 294,746 | 283,185 |
| Total debt principal outstanding | 9,208,653 | 9,226,330 |
| Discount and deferred financing costs | (83,887) | (95,985) |
| Carrying Amount of Long-Term Debt, Net of Unamortized Discount or Premium, Current and Noncurrent, Total | 9,124,766 | 9,130,345 |
| Less current portion | (152,764) | (129,037) |
| Long-term debt | 8,972,002 | 9,001,308 |
| Term Loan A | ||
| Debt Instrument [Line Items] | ||
| Senior Secured Credit Facilities | 881,250 | 925,000 |
| Term Loan B | ||
| Debt Instrument [Line Items] | ||
| Senior Secured Credit Facilities | $ 3,421,250 | $ 3,447,500 |