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Supplemental Financial Information - Accumulated Other Comprehensive Income (Details) - USD ($)
$ in Thousands
Dec. 31, 2021
Jun. 30, 2021
Accumulated Other Comprehensive Income (Loss)    
Cumulative foreign currency translation adjustment $ 2,580 $ 2,457
Defined benefit pension obligation (364) (364)
Accumulated other comprehensive income $ 2,216 $ 2,093