v3.19.2

Contractual Commitments, Contingencies, and Off-Balance Sheet Arrangements - Data Center Agreements - Amortization Expense of Capitalized Costs (Details) - USD ($) $ in Millions | 12 Months Ended
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Jun. 30, 2019 | Jun. 30, 2018 | Jun. 30, 2017
Loss Contingencies [Line Items] |  |  |
Amortization of capitalized costs | $ 5.8 | $ 5.8 | $ 5.0
IT Services Agreement |  |  |
Loss Contingencies [Line Items] |  |  |
Amortization of capitalized costs | 5.3 | 5.3 | 4.6
EU IT Services Agreement |  |  |
Loss Contingencies [Line Items] |  |  |
Amortization of capitalized costs | $ 0.5 | $ 0.5 | $ 0.4

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