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Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2016 | Sep. 30, 2015 | Sep. 30, 2016 | Sep. 30, 2015 | Dec. 31, 2015
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |
Provision from income taxes | $ 57,778 | $ 62,355 | $ 26,620 | $ 38,838 |
Net discrete tax (expense) benefit | 9,000 | 800 | 12,800 | 2,800 |
Reasonably possible changes to unrecognized tax benefits related to settlement of tax audits and/or expiration of statutes of limitations within the next twelve months | $ 11,500 |  | $ 11,500 |  |
Prepaid expenses and other current assets | New Accounting Pronouncement, Early Adoption, Effect |  |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |
DTA - current |  | 203,500 |  | 203,500 | $ 195,800
Other noncurrent assets | New Accounting Pronouncement, Early Adoption, Effect |  |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |
DTA - noncurrent |  | 199,600 |  | 199,600 | 193,600
Accounts Payable and Accrued Liabilities | New Accounting Pronouncement, Early Adoption, Effect |  |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |
DTL - current |  | 100 |  | 100 |
Other noncurrent liabilities | New Accounting Pronouncement, Early Adoption, Effect |  |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |
DTL - noncurrent |  | $ 3,800 |  | $ 3,800 | $ 2,200

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