Acquisitions and Dispositions - Schedule of Preliminary Allocation of Assets and Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2019	Apr. 03, 2019	Dec. 31, 2018	Dec. 31, 2017
Business Acquisition [Line Items]
Goodwill	$ 1,260.1		$ 1,297.1	$ 1,343.0
Southern Europe
Business Acquisition [Line Items]
Cash and cash equivalents		$ 317.5
Accounts receivable		60.4
Prepaid expenses and other assets		31.4
Goodwill		33.8
Intangible assets subject to amortization, customer relationship		19.6
Intangible assets not subject to amortization, reacquired franchise rights		25.5
Property and equipment		0.4
Accounts payable		(21.6)
Employee compensation payable		(2.5)
Accrued liabilities		(9.9)
Accrued payroll taxes and insurance		(7.5)
Value added taxes payable		(7.4)
Other long-term liabilities		(24.6)
Total assets and liabilities		$ 415.1