Goodwill and Intangible Assets - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Goodwill and Intangible Assets Disclosure [Abstract]
Adjustment to goodwill, revision of initial purchase price allocation			$ 900
Decrease in intangible assets, purchase price adjustment			300
Increase in financial liabilities, purchase price adjustment			600
Amortization of intangibles assets	$ 3,728	$ 2,369	$ 11,450	$ 6,963