Income Taxes - Schedule of Reconciliation of Income Tax Provision and Statutory Rate (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Tax Disclosure [Abstract]
Tax (benefit) expense at statutory rate	$ (11,525)	$ (1,083)	$ 5,675
Increase (decrease) in tax resulting from:
State income tax, net of federal benefit	174	34	416
Domestic production activities deduction	(561)	(211)	(670)
Intangible asset and goodwill impairment	17,859
Change in uncertain tax position reserves	(624)	(1,281)	388
Permanent differences	(31)	1,162	58
Impact of rate differences and adjustments	(1,655)	(1,489)	296
United States and foreign tax incentives	(1,035)	(883)	(3,026)
Non-deductible transaction costs	7	1,356
Earnout expenses	2,573	3,928
Change in valuation allowance	222	483
Audit settlements		65
Provision-to-return adjustments	108	808
Other	(222)	(251)
Income tax provision from continuing operations	$ 5,290	$ 2,638	$ 3,137