Acquisitions (Details) - TWG Holdings Limited - USD ($) $ in Millions	May 31, 2018	Jun. 30, 2018
Business Acquisition [Line Items]
Total acquisition consideration	$ 2,466.3
Aggregate cash consideration	894.9
Repayment of pre-existing TWG debt	595.9
Share issuance consideration	$ 975.5
Common stock shares issued to TWG equityholders	10,399,862
Percentage of outstanding common stock acquired		16.50%

Number of shares of equity interests issued or issuable to acquire entity.

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