Stock-based Compensation - Summary of RSU Activity (Details) - $ / shares	1 Months Ended		12 Months Ended
	Aug. 31, 2015	Jun. 30, 2015	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Weighted-Average Grant Date Fair Value Per Share
Beginning Balance Outstanding (in dollars per share)			$ 19.81	$ 30.43	$ 30.43
Granted (in dollars per share)			15.68	19.81	22.67
Vested (in dollars per share)			20.43	30.43	21.87
Forfeited ($ per share)			15.72
Ending Balance Outstanding (in dollars per share)			$ 19.07	$ 19.81	$ 30.43
2014 Long Term Incentive Plan | Restricted Stock Units (RSUs)
RSU Shares
Outstanding and unvested at beginning of period (in shares)			142,131	469,435	467,716
Granted (in shares)	5,000	18,300	23,300	142,131	15,435
Vested (in shares)			(45,753)	(469,435)	(13,716)
Forfeited (shares)			(11,020)	0	0
Outstanding and unvested at end of period (in shares)			108,658.000	142,131	469,435