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Benefit Plans - Amounts Recognized in Accumulated Other Comprehensive Loss, Net of Tax (Detail) - Defined Benefit Pension Plan [Member] $ in Thousands | Dec. 31, 2015 USD ($)
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Amounts Recognized in Accumulated Other Comprehensive Loss, net of tax |
Net loss | $ 2,115
Deferred income tax benefit | (719)
Amount recognized | $ 1,396

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