XML 45 R31.htm IDEA: XBRL DOCUMENT v3.20.4
Other Charges - Additional Information (Details) - Cost savings initiative plan - USD ($)
3 Months Ended
Dec. 31, 2020
Sep. 30, 2020
Restructuring Cost and Reserve [Line Items]    
Restructuring costs $ 0 $ 20,400,000
Restructuring reserve $ 6,100,000 $ 10,700,000