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Supplemental Cash Flow Information (Detail) (USD $)
In Thousands, unless otherwise specified
9 Months Ended
Sep. 30, 2013
Sep. 30, 2012
Supplemental disclosure of cash flow information:    
Cash paid for interest $ 2,742 $ 4,373
Cash paid for taxes 4,891 3,301
Non-cash investing activities:    
Translation adjustment $ 190 $ (1,453)