Supplemental Financial Information - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended			12 Months Ended
	Sep. 30, 2021	Jun. 30, 2021	Sep. 30, 2020	Jun. 30, 2021
Financing receivables
Accounts receivable with contractual maturities of more than one year	$ 3,144	$ 3,387		$ 3,387
Adjustments to allowance for credit loss	900	900
Financing receivables, additions	0	$ 200		200
Financing receivables, write-offs	0			$ 3,600
Property and equipment, net
Depreciation expense	$ 1,400		$ 1,600