Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015
Income Tax Disclosure [Abstract]
Income tax provision (benefit) (in Dollars)	$ 27,305	$ 26,048	$ 70,273	$ 64,688
Effective income tax rate (as a Percent)	36.30%	35.20%	31.60%	35.40%
Valuation allowance	$ 11,200		$ 11,200		$ 8,800
Unrecognized tax benefits (in Dollars)	1,700		1,700		$ 2,300
Unrecognized tax benefits that would impact the Company's effective tax rate	900		900
Unrecognized tax benefits that would impact goodwill	$ 800		$ 800