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Supplemental Financial Information - Summary of Financing Receivables (Details) - USD ($)
$ in Thousands
Sep. 30, 2020
Jun. 30, 2020
Financing receivables    
Gross $ 13,042 $ 13,019
Unearned income (1,805) (1,774)
Allowance for credit loss (4,380) (4,369)
Total, net 6,857 6,876
Current 3,337 3,084
Non-current $ 3,520 $ 3,792