v3.19.2

Summary of Significant Accounting Policies - Additional Information (Details) $ in Millions | 12 Months Ended | 36 Months Ended |  |
--- | --- | --- | --- | ---
Jun. 30, 2019 USD ($) | Jun. 30, 2019 USD ($) | Jun. 30, 2019 USD ($) segment | Jun. 30, 2019 USD ($) Segment | Jun. 30, 2019 USD ($) | Jun. 30, 2018 USD ($) | Jun. 30, 2017 USD ($) | Jun. 30, 2019 USD ($) | Jul. 01, 2019 USD ($) | Jul. 01, 2018 USD ($)
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |  |  |  |
Number of reportable segments |  |  | 2 | 2 |  |  |  |  |  |
Investment securities maturity period for consideration as cash equivalents, in days | 90 days |  |  |  |  |  |  |  |  |
Inventory | $ 21.1 | $ 21.1 | $ 21.1 | $ 21.1 | $ 21.1 | $ 18.5 |  | $ 21.1 |  |
Advertising costs |  |  |  |  | 4.1 | 6.3 | $ 4.2 |  |  |
Excess tax benefits from stock-based compensation awards |  |  |  |  | 0.0 | 0.0 | $ 40.6 |  |  |
Retained earnings | $ 2,087.7 | $ 2,087.7 | $ 2,087.7 | $ 2,087.7 | $ 2,087.7 | $ 1,727.0 |  | $ 2,087.7 |  |
Software and Software Development Costs | Minimum |  |  |  |  |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |  |  |  |
Estimated useful lives of assets | 3 years |  |  |  |  |  |  |  |  |
Software and Software Development Costs | Maximum |  |  |  |  |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |  |  |  |
Estimated useful lives of assets | 5 years |  |  |  |  |  |  |  |  |
Forecast | Accounting Standards Update 2016-02 |  |  |  |  |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |  |  |  |
Operating lease liability expected to be recognized |  |  |  |  |  |  |  |  | $ 253.0 |
Operating lease right-of-use asset expected to be recognized |  |  |  |  |  |  |  |  | $ 236.0 |
Difference between Revenue Guidance in Effect before and after Topic 606 | Accounting Standards Update 2014-09 |  |  |  |  |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |  |  |  |
Retained earnings |  |  |  |  |  |  |  |  |  | $ 101.3
Five Largest Customers | Customer Concentration Risk | Revenue Benchmark [Member] |  |  |  |  |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |  |  |  |
Percentage of consolidated revenues |  | 22.00% |  |  |  | 21.00% | 20.00% |  |  |
Largest Customer | Customer Concentration Risk | Revenue Benchmark [Member] |  |  |  |  |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |  |  |  |
Percentage of consolidated revenues |  |  |  |  |  |  |  | 6.00% |  |

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