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Equity - Share-Based Compensation (Details) - Restricted Stock [Member] - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Share-based compensation expense $ 8.6 $ 10.4
Shares paid for tax withholding for share based compensation (in shares) 409,716 250,287
Payments related to tax withholding for share-based compensation $ 9.1 $ 5.1