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Financial Instruments and Fair Value Measurements - Recurring Basis (Detail) - USD ($) $ in Thousands | Sep. 30, 2018 | Dec. 31, 2017
--- | --- | ---
Financial assets |  |
Interest rate swap | $ 2,546 | $ 214
Recurring | Level 1 |  |
Financial assets |  |
Interest rate swap | 0 | 0
Recurring | Level 2 |  |
Financial assets |  |
Interest rate swap | 2,546 | 214
Recurring | Level 3 |  |
Financial assets |  |
Interest rate swap | $ 0 | $ 0

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- Definition Fair value as of the balance sheet date of interest rate derivative assets, which includes all such derivative instruments in hedging and nonhedging relationships that are recognized as assets. + References No definition available. + Details
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