XML 47 R34.htm IDEA: XBRL DOCUMENT v3.21.2
Revenue from Contract with Customer - Contract Balances (Details) - USD ($)
$ in Thousands
Sep. 30, 2021
Sep. 30, 2020
Revenue from Contract with Customer [Abstract]    
Contract assets $ 4,080 $ 5,187
Contract assets, non-current 4,409 4,468
Contract liabilities (deferred revenue), current 10,381 7,973
Contract liabilities (deferred revenue), non-current $ 955 $ 1,597