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Income Taxes - Schedule of Effective Income Tax Rate Reconciliation (Details) - USD ($) $ in Thousands | 12 Months Ended
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Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2021
Income Tax Disclosure [Abstract] |  |  |
Expected tax expense computed at federal statutory rate | $ 101,564 | $ 95,460 | $ 104,919
State and local taxes, net of federal benefit | 15,900 | 21,295 | 21,252
Remeasurement of current year NOL | 0 | (1,124) | (56,192)
R&D tax credit, net | (14,205) | (15,708) | (18,173)
Stock-based compensation | (930) | (3,981) | (5,525)
Nonincludible and nondeductible items, net | 1,105 | 1,588 | (2,269)
Remeasurement of deferred taxes | (5,546) | (5,629) | 0
Other | 1,016 | (4,123) | (1,840)
Total income tax expense | $ 98,904 | $ 87,778 | $ 42,172
Effective income tax rate | 20.40% | 19.30% | 8.40%

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