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Income Taxes (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Mar. 31, 2021
Mar. 31, 2020
Jun. 30, 2020
Income Tax Disclosure [Abstract]          
Deferred tax assets, valuation allowance $ 15,006   $ 15,006   $ 14,582
Tax credit carryforwards, foreign $ 580   $ 580   $ 580
Effective tax rate (as a percent) 23.70% 22.60% 23.00% 22.50%