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Revenues (Narratives) (Details) $ in Millions | 12 Months Ended
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Jun. 30, 2018 USD ($) Distribution_Channels | Jun. 30, 2017 USD ($) | Jun. 30, 2016 USD ($)
Disaggregation Of Revenue [Line Items] |  |  |
Number of distribution channels | Distribution_Channels | 2 |  |
Estimated selling price determination approach | Certain of the Company’s contracts have multiple performance obligations, as the promise to transfer individual goods or services is separately identifiable from other promises in the contracts and, therefore, is distinct. For contracts with multiple performance obligations, the Company allocates the contract’s transaction price to each performance obligation based on its relative standalone selling price. The stand-alone selling prices are determined based on the prices at which the Company separately sells these products. For items that are not sold separately, the Company estimates the stand-alone selling prices using the best estimated selling price approach. |  |
Remaining revenue performance obligations | $ 174.5 |  |
Revenue recognized for deferred revenue balance | $ 76.6 | $ 70.5 |
Commission Fees |  |  |
Disaggregation Of Revenue [Line Items] |  |  |
Revenue, practical expedient, incremental cost of obtaining contract [true false] | true |  |
Contract costs capitalized, amortization period | 3 years |  |
Contract costs capitalized, amortization method | straight-line basis |  |
Contract costs capitalized, amortization expense | $ 2.1 | 1.5 | $ 0.9
Commission Fees | Other Assets |  |  |
Disaggregation Of Revenue [Line Items] |  |  |
Contract costs capitalized, amount | $ 4.3 | $ 2.5 |
Minimum |  |  |
Disaggregation Of Revenue [Line Items] |  |  |
Contractual service period | 1 year |  |
Maximum |  |  |
Disaggregation Of Revenue [Line Items] |  |  |
Contractual service period | 3 years |  |
ASU 2014-09 |  |  |
Disaggregation Of Revenue [Line Items] |  |  |
Contract acquisition costs capitalization, description | Company capitalizes contract acquisition costs such as commissions paid for maintenance services contracts in excess of one year |  |
ASU 2014-09 | Minimum |  |  |
Disaggregation Of Revenue [Line Items] |  |  |
Contract acquisition costs capitalization period | 1 year |  |

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