New Accounting Pronouncements (Details) - USD ($) $ in Millions	Mar. 31, 2020	Jul. 01, 2019		Jul. 01, 2018	[2]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating lease liability recognized upon adoption	$ 326.9	$ 252.0
Operating lease right-of-use assets recognized upon adoption	$ 297.6
Impact of revenue recognition adjustments		0.2	[1]	$ 101.3
Retained Earnings
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Impact of revenue recognition adjustments		0.2	[1]	$ 102.8
2016-02
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating lease right-of-use assets recognized upon adoption		235.4
2016-02 | Retained Earnings
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Impact of revenue recognition adjustments		$ 0.2

[1] Reflects the adoption of accounting standards as described in Note 2, “Summary of Significant Accounting Policies.”

[2] Primarily reflects the adoption of accounting standards as described in Note 3, “Revenue Recognition.”