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Goodwill and Intangible Assets - Finite Lived Intangible Assets Amortization Expense (Detail) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2014
Sep. 30, 2013
Goodwill and Intangible Assets Disclosure [Abstract]        
Intangible assets - finite life, Beginning of period     $ 46,813 $ 1,283
Amortization expense (1,700) (1,400) (5,342) (2,137)
Acquisitions/purchase accounting adjustments     (175) 49,187
Foreign currency adjustments     (897) 769
Intangible assets - finite life, End of period $ 40,399 $ 49,102 $ 40,399 $ 49,102