XML 71 R60.htm IDEA: XBRL DOCUMENT v3.21.2
Leases - Narrative (Details) - USD ($)
3 Months Ended 9 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Leases [Abstract]        
Operating lease expense $ 9,000,000.0 $ 9,200,000 $ 26,600,000 $ 27,000,000.0