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Income Taxes (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2023 | Dec. 31, 2022
Income Taxes |  |  |  |
Effective income tax rate (as a percent) | 20.20% | 19.50% | 21.00% | 21.60%
Net discrete tax benefit related to equity-based compensation under change in accounting principle | $ 0.2 | $ 0.4 | $ 0.6 | $ 0.5
Net discrete tax benefit related to equity-based compensation under change in prior year tax estimates | $ 2.3 | $ 0.4 | $ 2.3 | $ 0.4

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- Definition Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 12 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482685/740-10-50-12 + Details
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- Definition The tax effect of correction of an error charged or credited directly to the opening balance of retained earnings. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 740 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 11 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482659/740-20-45-11 + Details
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