Retirement Benefits - Narrative (Details) $ in Millions |
6 Months Ended |
|---|---|
|
Mar. 31, 2022
USD ($)
| |
| Retirement Benefits [Abstract] | |
| Defined contribution plan expense | $ 4.7 |
| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Amount of cost for defined contribution plan. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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