Aggregate Fair Value of Derivative Financial Instruments (Detail) - Fair Value, Measurements, Recurring - Interest Rate Swap - USD ($) $ in Thousands |
Sep. 30, 2017 |
Dec. 31, 2016 |
---|---|---|
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis | ||
Interest rate swap liability | $ 21,129 | $ 31,974 |
Fair Value Measurements Using Quoted Prices in Active Markets for Identical Assets (Level 1) | ||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis | ||
Interest rate swap liability | 0 | 0 |
Fair Value Measurements Using Significant Other Observable Inputs (Level 2) | ||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis | ||
Interest rate swap liability | 21,129 | 31,974 |
Fair Value Measurements Using Significant Unobservable Inputs (Level 3) | ||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis | ||
Interest rate swap liability | $ 0 | $ 0 |