Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Income Tax Disclosure [Abstract]
Income tax provision	$ 5,066	$ 2,931
Effective income tax rate (as a percent)	33.60%	37.20%
Statutory U.S. income tax rate (as a percent)	35.00%	35.00%
Income taxes paid (refunds), net	$ 100	$ (9,400)