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Employee Benefit Plans - Status of Supplemental Executive Retirement Plan (Parenthetical) (Detail) - USD ($) $ in Thousands | Dec. 31, 2016 | Dec. 31, 2015
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Defined Benefit Plan Disclosure [Line Items] |  |
Other long-term liabilities | $ 61,170 | $ 64,245
Other accrued liabilities | 236,982 | $ 218,507
Supplemental Employee Retirement Plans, Defined Benefit [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Other long-term liabilities | 11,000 |
Other accrued liabilities | $ 300 |

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