Annual report pursuant to Section 13 and 15(d)

Goodwill - Summary of Changes in Carrying Amount of Goodwill (Detail)

v2.4.1.9
Goodwill - Summary of Changes in Carrying Amount of Goodwill (Detail) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Goodwill and Intangible Assets Disclosure [Abstract]    
Balance at Beginning of the Year $ 100,998us-gaap_Goodwill $ 21,923us-gaap_Goodwill
Acquisition   79,155us-gaap_GoodwillAcquiredDuringPeriod
Foreign Currency Translations and Other (845)us-gaap_GoodwillTranslationAdjustments (80)us-gaap_GoodwillTranslationAdjustments
Balance at End of the Year 100,153us-gaap_Goodwill 100,998us-gaap_Goodwill
Goodwill 116,695us-gaap_GoodwillGross 117,540us-gaap_GoodwillGross
Accumulated Impairment Losses (16,542)us-gaap_GoodwillImpairedAccumulatedImpairmentLoss (16,542)us-gaap_GoodwillImpairedAccumulatedImpairmentLoss
Goodwill - Net $ 100,153us-gaap_Goodwill $ 100,998us-gaap_Goodwill