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Summary of Significant Accounting Policies - Schedule of Components of Changes in Accumulated Other Comprehensive Income (Detail) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Beginning Balance $ 4,745    
Unrealized gain (loss) on cross-currency swaps, net of tax benefit (278) 263 (437)
Foreign currency translation adjustment (1,768) 768 (2,279)
Ending Balance 2,699 4,745  
Foreign Currency Translation Adjustments [Member]
      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Beginning Balance 4,614 3,846  
Foreign currency translation adjustment (1,768) 768  
Ending Balance 2,846 4,614  
Fair Value of Cross- Currency Swaps [Member]
      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Beginning Balance 131 (132)  
Unrealized gain (loss) on cross-currency swaps, net of tax benefit (278) 263  
Ending Balance (147) 131  
Accumulated Other Comprehensive Income [Member]
      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Beginning Balance 4,745 3,714  
Unrealized gain (loss) on cross-currency swaps, net of tax benefit (278) 263 (437)
Foreign currency translation adjustment (1,768) 768 (2,279)
Ending Balance $ 2,699 $ 4,745 $ 3,714