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Components of Accumulated Other Comprehensive Loss, Net (Parenthetical) (Detail) - USD ($) $ in Thousands | 3 Months Ended
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Mar. 31, 2017 | Mar. 31, 2016
Accumulated deferred gains (losses) on cash flow hedges: |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |
Derivative fair value adjustment, tax | $ 9 | $ 29
Accumulated effect of retirement benefit obligations: |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |
Amortization of actuarial losses, taxes | $ 10 | $ 9

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