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Goodwill and Other Intangible Assets - Additional Information (Detail) - USD ($) | 3 Months Ended | 6 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Feb. 28, 2017 | Nov. 30, 2016 | Nov. 30, 2017 | Nov. 30, 2016 | May 31, 2017 | May 31, 2009 | May 31, 2016
Goodwill And Intangible Assets [Line Items] |  |  |  |  |  |  |
Impairment charges related to carrying value of goodwill and other intangible assets |  | $ 188,298,000 |  | $ 188,298,000 |  |  |
Goodwill impairment loss |  |  |  |  | $ 140,700,000 |  |
Impairment losses for other intangible assets |  |  |  |  | 47,800,000 |  |
Accumulated impairment losses |  | 155,600,000 | $ 156,300,000 | 155,600,000 |  |  |
Other intangible asset accumulated impairment losses, gross |  | 48,400,000 | 53,600,000 | 48,400,000 |  |  |
Intangible asset impairment loss |  |  |  |  | 47,800,000 |  |
Goodwill |  |  | 1,167,963,000 |  | 1,143,913,000 |  |
Kirker Reporting Unit |  |  |  |  |  |  |
Goodwill And Intangible Assets [Line Items] |  |  |  |  |  |  |
Goodwill impairment loss |  |  | $ 140,700,000 |  |  |  |
Intangible asset impairment loss |  | $ 45,700,000 |  | 45,700,000 |  |  |
Fair value in excess of carrying value |  |  |  |  |  |  | 8.00%
Percentage of loss on sales |  | 15.00% |  |  |  |  |
Assumed long-term earnings growth rate |  |  | 3.00% |  |  |  |
Weighted-average cost of capital |  |  | 8.00% |  |  |  |
Goodwill |  | $ 0 |  | 0 |  |  |
Industrial Segment |  |  |  |  |  |  |
Goodwill And Intangible Assets [Line Items] |  |  |  |  |  |  |
Accumulated impairment losses |  |  |  |  |  | $ 14,900,000 |
Intangible asset impairment loss |  |  |  |  |  | $ 600,000 |
Formulae |  |  |  |  |  |  |
Goodwill And Intangible Assets [Line Items] |  |  |  |  |  |  |
Impairment losses for other intangible assets |  |  |  |  | 15,400,000 |  |
Customer-related Intangibles |  |  |  |  |  |  |
Goodwill And Intangible Assets [Line Items] |  |  |  |  |  |  |
Impairment losses for other intangible assets |  |  |  |  | 30,200,000 |  |
Other Intangibles |  |  |  |  |  |  |
Goodwill And Intangible Assets [Line Items] |  |  |  |  |  |  |
Impairment losses for other intangible assets |  |  |  |  | 200,000 |  |
Indefinite-lived Trademarks |  |  |  |  |  |  |
Goodwill And Intangible Assets [Line Items] |  |  |  |  |  |  |
Impairment losses for other intangible assets |  |  |  |  | $ 2,000,000 |  |
Indefinite-lived Tradename | Consumer Segment |  |  |  |  |  |  |
Goodwill And Intangible Assets [Line Items] |  |  |  |  |  |  |
Intangible asset impairment loss | $ 4,900,000 |  |  |  |  |  |
Trademarks and Trade Names | Kirker Reporting Unit |  |  |  |  |  |  |
Goodwill And Intangible Assets [Line Items] |  |  |  |  |  |  |
Impairment losses for other intangible assets |  | 2,000,000 |  | 2,000,000 |  |  |
Recalculated fair value of identifiable indefinite-lived intangible assets |  | $ 5,800,000 |  | $ 5,800,000 |  |  |

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- Definition Interest rate used to find the present value of an amount to be paid or received in the future as an input to measure fair value. For example, but not limited to, weighted average cost of capital (WACC), cost of capital, cost of equity and cost of debt. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb) -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258 + Details
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- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=77989000&loc=SL49117168-202975 + Details
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