Earnings per Share - Anti-Dilutive Securities (Details) - shares shares in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total Anti-Dilutive Securities	10,699	2,077	10,832
Stock options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total Anti-Dilutive Securities	784	805	1,022
Restricted stock and performance shares
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total Anti-Dilutive Securities	3,173	1,272	3,068
Convertible preferred stock
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total Anti-Dilutive Securities	6,742	0	6,742