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Beginning Balance, Annual Activity and Ending Balance of each Component of Accumulated Other Comprehensive Income (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Beginning Balance $ (1,970) $ (1,048) $ (1,762)
Other comprehensive income/(loss) before reclassifications (1,571) (1,292) 251
Amounts reclassified from AOCI   594 712
Tax effect   (224) (249)
Ending Balance (3,541) (1,970) (1,048)
Interest Rate Swap      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Beginning Balance   (340) (728)
Other comprehensive income/(loss) before reclassifications   (30) (75)
Amounts reclassified from AOCI   594 712
Tax effect   (224) (249)
Ending Balance     (340)
Accumulated Translation Adjustment      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Beginning Balance (1,970) (708) (1,034)
Other comprehensive income/(loss) before reclassifications (1,571) (1,262) 326
Ending Balance $ (3,541) $ (1,970) $ (708)