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Income Taxes - Additional Information (Detail) - USD ($) |  |  |  | 3 Months Ended | 6 Months Ended
--- | --- | --- | --- | --- | ---
Jan. 01, 2018 | Dec. 22, 2017 | Dec. 21, 2017 | Nov. 30, 2017 | Nov. 30, 2016 | Nov. 30, 2017 | Nov. 30, 2016
Operating Loss Carryforwards [Line Items] |  |  |  |  |  |  |
Effective income tax expense (benefit) rate |  |  |  | 12.20% | (34.30%) | 19.60% | (3.70%)
Federal statutory rate |  |  |  | 35.00% | 35.00% |  |
Favorable discrete tax adjustments for excess tax benefits related to equity compensation |  |  |  | $ 2,000,000 | $ 1,000,000 | $ 3,500,000 | $ 11,300,000
Discrete tax expense (benefit) |  |  |  | (18,000,000) |  | (9,000,000) |
Discrete tax benefit related to change in estimated deferred income tax liability |  |  |  | 16,800,000 |  |  |
Unremitted foreign earnings |  |  |  | 221,800,000 |  | 221,800,000 |
Deferred income tax liability |  |  |  | 63,400,000 |  | 63,400,000 |
Provision for deferred income taxes |  |  |  | 0 |  | $ 0 |
Subsequent Event |  |  |  |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |  |  |  |
Corporate income tax rate |  | 21.00% | 35.00% |  |  |  |
Corporate tax ate reduction effective date | Jan. 01, 2018 |  |  |  |  |  |
Percentage of blended rate | 29.20% |  |  |  |  |  |
Domestic Tax Authority |  |  |  |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |  |  |  |
Discrete tax expense (benefit) |  |  |  | $ (1,200,000) |  |  |

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- Definition Amount of deferred tax liability attributable to taxable temporary differences from undistributed earnings of subsidiaries and other recognized entities not within the country of domicile of the entity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 25 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=96869850&loc=d3e28680-109314 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32621-109319 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32632-109319 + Details
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