Common Stock and Incentive Awards - Summary of RSU Activity (Parenthetical) (Details) - shares	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Performance Awards
Summary of the RSU activity
Percentage of target to be achieved to be eligible to receive performance awards	96.50%	135.00%
Granted (in shares)	176,632	475,409
Time-based Awards
Summary of the RSU activity
Percentage of target to be achieved to be eligible to receive performance awards	100.00%	100.00%
Granted (in shares)	234,062	351,974
Restricted Stock Units (RSUs)
Summary of the RSU activity
Granted (in shares)	410,694	917,283	0