Leases - Narrative (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended |
|---|---|---|
Mar. 31, 2020 |
Mar. 31, 2020 |
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| Leases [Abstract] | ||
| Operating lease expense | $ 9.8 | $ 17.8 |
| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Amount of operating lease expense. Excludes sublease income. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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