Recently Issued Accounting Pronouncements (Details) - USD ($) $ in Millions	Dec. 31, 2019	Apr. 01, 2019	Mar. 31, 2019
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Right-of-use assets	$ 135.7
Accrued lease liabilities	42.9		$ 0.0
Other long term liabilities	$ 111.0
Accounting Standards Update 2016-02
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Right-of-use assets		$ 124.6
Accrued lease liabilities		39.4
Other long term liabilities		$ 97.9