Basis of Presentation and Summary of Significant Accounting Policies - Coronavirus Global Pandemic (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2020	Jun. 30, 2021	Dec. 31, 2020
Unusual or Infrequent Item, or Both [Line Items]
Temporary "thank you" pay incentives	$ 15.5	$ 15.5
Coronavirus Global Pandemic
Unusual or Infrequent Item, or Both [Line Items]
Liability for estimated sales returns due to global pandemic		31.8
Obsolete finished keg inventories		$ 16.8
Allowance for credit loss			$ 16.0	$ 18.0
Temporary deferral of income and non-income based tax payments			$ 130.0	$ 130.0