Income tax disclosure.

No definition available.

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- Definition

Increase (Decrease) in unrecognized tax benefit income tax penalties and interest accrued.

+ References

No definition available.

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- Definition

Amount 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
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
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-Section S99
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-Publisher FASB
-Name Accounting Standards Codification
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-Section 45
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- Definition

Amount of increase reasonably possible in the next twelve months for the unrecognized tax benefit.

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- Definition

Amount of unrecognized tax benefits.

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-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
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- Definition

Amount accrued for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return.

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Amount of increase (decrease) in unrecognized tax benefits attributable to uncertain tax positions taken in tax returns.

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Income Taxes - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2020	Mar. 31, 2019	Jun. 30, 2019
Income Tax Disclosure [Line Items]
Provision/(benefit) for income taxes	$ 10.2	$ (15.3)	$ 17.3	$ (8.1)
Gross unrecognized tax benefits	21.1		21.1		$ 18.9
Gross unrecognized tax benefits increased (decreased) during the year			2.2
Interest and penalties accrued related to unrecognized tax benefits	2.0		2.0
Increase (decrease) in interest and penalties accrued related to unrecognized tax benefits			(0.1)
Maximum [Member]
Income Tax Disclosure [Line Items]
Estimated increase in unrecognized tax benefit in next twelve months	$ 2.5		$ 2.5