| Leases  - Additional Information (Details) $ in Millions | 3 Months Ended | 6 Months Ended | 
|---|---|---|
| Dec. 31, 2019  USD ($) | Dec. 31, 2019  USD ($) | |
| Operating Leased Assets [Line Items] | ||
| Total lease expense | $ 9.1 | $ 17.6 | 
| Operating leases, weighted average remaining lease term | 5 years | 5 years | 
| Operating leases, weighted average discount rate | 1.67% | 1.67% | 
| Minimum | ||
| Operating Leased Assets [Line Items] | ||
| Remaining lease terms | 1 year | 1 year | 
| Maximum | ||
| Operating Leased Assets [Line Items] | ||
| Remaining lease terms | 11 years | 11 years | 
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- Definition Amount of lease cost recognized by lessee for lease contract. Reference 1: http://www.xbrl.org/2003/role/disclosureRef 
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- Definition Term of lessee's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef 
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- Definition Weighted average discount rate for operating lease calculated at point in time. Reference 1: http://www.xbrl.org/2003/role/disclosureRef 
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- Definition Weighted average remaining lease term for operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/exampleRef 
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available. 
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