Acquisitions (Details) - USD ($) $ in Millions			9 Months Ended
	Jan. 19, 2018	Oct. 04, 2017	Mar. 31, 2018	Jun. 30, 2017
The preliminary purchase price allocation for GCC is as follows:
Goodwill			$ 2,263.3	$ 1,741.0
Global Cash Card, Inc.
Business Acquisition [Line Items]
Date of acquisition agreement		Oct. 05, 2017
Percentage of shares acquired		100.00%
Acquisition price		$ 490.0
Finite-lived intangible assets acquired			$ 132.5
Acquired finite-lived intangible assets, weighted average useful life			8 years
The preliminary purchase price allocation for GCC is as follows:
Goodwill			$ 404.2
Identifiable intangible assets			132.5
Other assets			3.2
Total assets acquired			539.9
Total liabilities acquired			$ 48.9
Work Market, Inc. [Member]
Business Acquisition [Line Items]
Date of acquisition agreement	Jan. 19, 2018
Percentage of shares acquired	100.00%
Acquisition price	$ 125.0