Annual report pursuant to Section 13 and 15(d)

Intangible Assets (Narrative) (Detail)

v3.3.1.900
Intangible Assets (Narrative) (Detail) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Goodwill and Intangible Assets Disclosure [Abstract]      
Amortization of intangible assets $ 20,650 $ 14,056 $ 11,594
Estimated useful life 9 years 8 months 9 days