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Investments - Narrative (Details) - USD ($)
$ in Thousands
12 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2020
Debt Securities, Available-for-sale [Line Items]      
Net unrealized holding gains (losses) for securities $ (3,083) $ 2,725 $ 41
Investment at cost 2,000    
Fair Value, Inputs, Level 3      
Debt Securities, Available-for-sale [Line Items]      
Equity securities without readily determinable fair value, amount $ 500