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Employee Benefits - 401(k) Retirement Plan (Details) - USD ($)
$ in Millions
12 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Jun. 30, 2021
Defined Contribution Plan Disclosure [Line Items]      
Additional profit-sharing contributions of eligible salary 5.00%    
Retirement plan expenses $ 2.4 $ 1.9 $ 1.7
401(k) Retirement Plan Shares Held 421,000    
Maximum      
Defined Contribution Plan Disclosure [Line Items]      
Matching contributions of eligible compensation 4.00%