Goodwill and Intangible Assets - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Goodwill and Intangible Assets Disclosure [Abstract]
Adjustment to goodwill, revision of initial purchase price allocation			$ 900
Amortization of intangibles assets	$ 3,706	$ 2,293	7,722	$ 4,594
Decrease in intangible assets, purchase price adjustment			300
Increase in financial liabilities, purchase price adjustment			$ 600