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Other Comprehensive Income (Loss) - Changes in Accumulated Other Comprehensive Income (Loss) by Component (Detail) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Accumulated Other Comprehensive Income Loss [Line Items]    
Beginning Balance $ (6,283)  
Other comprehensive income before reclassifications 626  
Change in cash flow hedges reclassed to earnings 172 $ 675
Net current-period other comprehensive income 798  
Ending Balance (5,485)  
Gains on Cash Flow Hedges [Member]    
Accumulated Other Comprehensive Income Loss [Line Items]    
Beginning Balance (6,109)  
Other comprehensive income before reclassifications 46  
Change in cash flow hedges reclassed to earnings 172  
Net current-period other comprehensive income 218  
Ending Balance (5,891)  
Foreign Currency Items [Member]    
Accumulated Other Comprehensive Income Loss [Line Items]    
Beginning Balance (174)  
Other comprehensive income before reclassifications 580  
Change in cash flow hedges reclassed to earnings 0  
Net current-period other comprehensive income 580  
Ending Balance $ 406