Goodwill and Other Intangible Assets - Information About Expected Amortization of Definite-Lived Intangible Assets (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Finite-Lived Intangible Assets [Line Items]
2016	$ 34,066
2017	33,446
2018	33,354
2019	33,263
2020	21,444
Thereafter	168,722
Net	324,295	$ 72,619
Services cost of revenue [Member}
Finite-Lived Intangible Assets [Line Items]
2016	804
2017	183
2018	91
2019	0
2020	0
Thereafter	0
Net	1,078
Amortization of other acquired intangible assets [Member]
Finite-Lived Intangible Assets [Line Items]
2016	33,262
2017	33,263
2018	33,263
2019	33,263
2020	21,444
Thereafter	168,722
Net	$ 323,217