SCHEDULE II VALUATION AND QUALIFYING ACCOUNTS - Narrative (Details) - USD ($) $ in Millions	4 Months Ended	8 Months Ended	12 Months Ended
	May 01, 2019	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Tax Act, reduction in deferred tax asset valuation allowance			$ (282.1)
Federal and state
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Tax Act, reduction in deferred tax asset valuation allowance		$ 1.1	(11.3)
Federal and state | Deferred Tax Asset Valuation Allowance
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Valuation allowance recorded on portion of deferred tax assets			$ 11.3	$ 160.6
Valuation allowances released	$ 714.5
Tax Act, reduction in deferred tax asset valuation allowance				$ 336.3
Foreign | Deferred Tax Asset Valuation Allowance
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Valuation allowances released	$ 28.5