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Income Taxes - (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2020	Dec. 31, 2019
Effective income tax rate excluding certain discrete tax items (as a percent)	27.50%	27.70%	27.50%	27.80%
ASU 2016-09
Discrete tax benefits (expenses) for equity-based compensation	$ (0.3)	$ 0.7	$ (0.1)	$ 6.9
Effective income tax rate (as a percent)	28.60%	25.30%	27.70%	13.50%

X

- Definition

Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations excluding certain discrete tax items.

+ References

No definition available.

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- Definition

Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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- Definition

The tax effects of employee stock option transactions that are recognized differently for financial reporting and tax purposes, occurring during the period and charged or credited directly to shareholders' equity.

+ References

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-Publisher FASB
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