Stock Based Compensation - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Decrease in share-based compensation expense	$ 1.0	$ 2.0
Decrease in stock based compensation expense	$ 2.0
Percent of awards issued not expected to vest	50.00%
Percent of awards issued expected to vest	50.00%
2011 Long Term Incentive Plan
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Forfeitures benefits		$ 0.3