Income Taxes - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016
Income Tax Disclosure [Abstract]
Income tax provision (benefit)	$ 24,299	$ 24,686
Income Tax Disclosure [Line Items]
Effective income tax rate	37.20%	37.10%
Valuation allowance	$ 11,200			$ 9,900
Unrecognized tax benefits	1,400			$ 1,300
Unrecognized tax benefits that would impact the Company's effective tax rate	1,200
Unrecognized tax benefits that would impact goodwill	$ 200
Forecast
Income Tax Disclosure [Line Items]
Effective income tax rate			37.50%