Earnings per Share - Additional Information (Details) - shares shares in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2013
Common Stock Equivalents [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Shares excluded from the calculations of earnings per share as the effect of including them would have been anti-dilutive	0.4	0.3
Antidilutive Securities Due to Effect on Period Loss [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Shares excluded from the calculations of earnings per share as the effect of including them would have been anti-dilutive		1.5
Series A Preferred Stock [Member] | Convertible Preferred Stock [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Shares excluded from the calculations of earnings per share as the effect of including them would have been anti-dilutive		12.2
Series B Preferred Stock [Member] | Convertible Preferred Stock [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Shares excluded from the calculations of earnings per share as the effect of including them would have been anti-dilutive		39.9