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LONG-TERM DEBT - Schedule of Long-Term Debt (Detail) - USD ($) $ in Thousands | Dec. 31, 2018 | Sep. 14, 2018 | Dec. 31, 2017 | Oct. 31, 2016 | Aug. 31, 2013
--- | --- | --- | --- | --- | ---
Debt Instrument [Line Items] |  |  |  |  |
Total | $ 3,856,873 |  | $ 1,870,528 |  |
Less - current portion | 64,099 |  | 47,225 |  |
Long-term portion | 3,792,774 |  | 1,823,303 |  |
Other Debt Obligations |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Long-term debt | 42,246 |  | 21,182 |  |
Revolving Credit Facility | Line of Credit |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Long-term debt | 338,112 |  | 853,124 |  |
Unamortized debt issuance cost | 3,138 |  | 2,451 |  |
Floating Rate Notes, due 2021 | Senior Notes |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Long-term debt | 496,796 |  | 0 |  |
Unamortized debt issuance cost | 3,204 |  |  |  |
4.150% Senior Notes, due 2024 | Senior Notes |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Long-term debt | $ 742,957 |  | 0 |  |
Stated interest rate (as a percent) | 4.15% | 4.15% |  |  |
Unamortized debt issuance cost | $ 7,043 |  |  |  |
4.70% Senior Notes, due 2028 | Senior Notes |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Long-term debt | $ 1,239,657 |  | 0 |  |
Stated interest rate (as a percent) | 4.70% | 4.70% |  |  |
Unamortized debt issuance cost | $ 10,343 |  |  |  |
3.45% Senior Notes, due 2026 | Senior Notes |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Long-term debt | $ 748,282 |  | $ 747,655 |  |
Stated interest rate (as a percent) | 3.45% |  | 3.45% | 3.45% |
Unamortized debt issuance cost | $ 1,718 |  | $ 2,345 |  |
4.375% Senior Notes, due 2023 | Senior Notes |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Long-term debt | $ 248,823 |  | $ 248,567 |  |
Stated interest rate (as a percent) | 4.375% |  | 4.375% |  | 4.375%
Unamortized debt issuance cost | $ 1,177 |  | $ 1,433 |  |

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