Earnings (Loss) Per Common Share - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share and Other Significant Changes in Shares [Line Items]
Amount of shares repurchased (shares)	0	663,541
Amount of shares repurchased		$ 2.6
Amount of shares issued (shares)	84,467	46,896
Amount of shares issued	$ 0.4	$ 0.1
Non-qualified Option [Member]
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share and Other Significant Changes in Shares [Line Items]
Weighted average shares outstanding excludes anti-dilutive shares underlying options (shares)	3,200,000	3,200,000
Performance Unit [Member]
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share and Other Significant Changes in Shares [Line Items]
Weighted average shares outstanding excludes anti-dilutive shares underlying options (shares)	2,000,000	1,800,000