Recent Accounting Pronouncements (Details) - USD ($) $ in Millions	Dec. 31, 2019	Jan. 01, 2019
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Right-of-use assets	$ 110.2
Amounts recorded in the Consolidated Balance Sheet	$ 114.0
Accounting Standards Update 2016-02
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Right-of-use assets		$ 112.3
Deferred rent liabilities		5.1
Amounts recorded in the Consolidated Balance Sheet		$ 117.4