Goodwill and Identifiable Intangible Assets - Summary of Acquired Intangible Assets (Detail) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount, Total intangible assets	$ 43,049	$ 23,821
Accumulated Amortization, finite-lived intangibles	(9,924)	(8,109)
Net Carrying Amount, Total intangible assets	33,125	15,712
Customer relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount, finite-lived intangibles	24,157	5,356
Accumulated Amortization, finite-lived intangibles	(2,452)	(903)
Net Carrying Amount, finite-lived intangibles	21,705	4,453
Developed technologies [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount, finite-lived intangibles	8,234	8,141
Accumulated Amortization, finite-lived intangibles	(3,457)	(3,793)
Net Carrying Amount, finite-lived intangibles	4,777	4,348
Trade name and other [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount, finite-lived intangibles	10,658	10,324
Accumulated Amortization, finite-lived intangibles	(4,015)	(3,413)
Net Carrying Amount, finite-lived intangibles	$ 6,643	$ 6,911