XML 44 R35.htm IDEA: XBRL DOCUMENT v3.22.1
Revenue from Contracts with Customers - Narrative (Details) - USD ($)
3 Months Ended 6 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Mar. 31, 2022
Mar. 31, 2021
Revenue from Contract with Customer [Abstract]        
Amortization of capitalized contract acquisition costs $ 9,700,000 $ 8,400,000 $ 19,092,000 $ 16,590,000
Capitalized Contract Cost, Impairment Loss     $ 0 $ 0