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Financial Derivatives and Hedging Activities - Fair Value Amounts Recorded as Component of Accumulated Other Comprehensive Income (Detail) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Derivative Instruments And Hedging Activities Disclosure [Abstract]    
Beginning Balance $ (599) $ 1,649
Deferred losses on cash flow hedges (1,642) (65)
Reclassified to earnings 945 (2,183)
Ending Balance $ (1,296) $ (599)