Income (Loss) Per Share of Common Stock - Schedule of Potentially Dilutive Securities Excluded from Computation (Details) - shares shares in Millions	1 Months Ended	3 Months Ended
	Dec. 31, 2015	Mar. 31, 2016	Feb. 28, 2015
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total potentially dilutive securities (in shares)	0.0	10.8	14.9
Employee Stock Options and Stock Purchase Plan [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total potentially dilutive securities (in shares)	0.0	0.1	0.2
Unvested Restricted Shares [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total potentially dilutive securities (in shares)	0.0	1.3	1.8
4 1/16% Convertible Subordinated Debentures [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total potentially dilutive securities (in shares)	0.0	9.4	12.9