Unusual Items - Schedule of Merger Costs (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Unusual or Infrequent Item [Line Items]
Gain on legal matters and settlements	$ 18.9	$ 7.7
Legal
Unusual or Infrequent Item [Line Items]
Gain on legal matters and settlements	12.9	3.9
Consulting and other professional costs
Unusual or Infrequent Item [Line Items]
Gain on legal matters and settlements	1.1	3.4
Internal labor
Unusual or Infrequent Item [Line Items]
Gain on legal matters and settlements	4.9	$ 0.4
Reoccurring Internal Labor
Unusual or Infrequent Item [Line Items]
Gain on legal matters and settlements	$ 4.4