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Income Taxes - Additional Information (Detail) - USD ($) $ in Millions | 6 Months Ended |
--- | --- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Jun. 30, 2020
Income Tax Disclosure [Abstract] |  |  |
Effective income tax rate, percent | 19.10% | 10.00% |
U.S. statutory rate | 21.00% |  |
Unrecognized tax benefits | $ 42.3 |  | $ 42.8
Liability for uncertainty in income taxes, current | 7.4 |  |
Liability for uncertain tax positions, noncurrent | 34.9 |  |
Unrecognized tax benefits that would impact effective tax rate | 38.2 |  |
Interest and penalties accrued | $ 4.0 |  | $ 3.8

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- Definition Percentage of domestic federal statutory tax rate applicable to pretax income (loss). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 6.I.Fact.4) -URI http://asc.fasb.org/extlink&oid=116825942&loc=d3e330036-122817 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32687-109319 + Details
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- Definition Amount recognized for uncertainty in income taxes classified as current. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.20) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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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. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32718-109319 + Details
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