Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Income Tax Disclosure [Abstract]
Effective tax rate from continuing operations	26.10%	30.10%	30.60%	27.60%
Operating Loss Carryforwards, Valuation Allowance	$ 1,700		$ 1,700
Net deferred tax assets	108,038		108,038		$ 106,538
Unrecognized tax benefits	$ 167		$ 167		$ 167