XML 30 R61.htm IDEA: XBRL DOCUMENT v2.4.1.9
Goodwill and Intangible Assets - Changes in Goodwill (Detail) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2015
Goodwill [Roll Forward]  
Balance at January 1 $ 252,520us-gaap_Goodwill
Currency translation (5,867)us-gaap_GoodwillTranslationAdjustments
Balance at March 31 $ 246,653us-gaap_Goodwill