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Components of Accumulated Other Comprehensive Loss, Net (Parenthetical) (Detail) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2018 | Jun. 30, 2017 | Jun. 30, 2018 | Jun. 30, 2017
Accumulated Deferred Gains (Losses) on Cash Flow Hedges: |  |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |
Derivative fair value adjustment, tax |  | $ 88 | $ 1 | $ 88 | $ 9
Accumulated Effect of Retirement Benefit Obligations: |  |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |
Amortization of actuarial losses, taxes | [1] | $ 12 | $ 10 | $ 24 | $ 20
[1] | Amounts are recorded in selling, general and administrative expense on the condensed consolidated statements of operations.

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