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Goodwill and Other Intangible Assets - Additional Information (Detail) - USD ($) | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Feb. 28, 2017 | Nov. 30, 2016 | Feb. 28, 2017 | May 31, 2016
Goodwill And Intangible Assets [Line Items] |  |  |  |
Accumulated impairment losses | $ 155,400,000 |  | $ 155,400,000 | $ 14,900,000
Preliminary goodwill impairment losses |  |  | 140,456,000 |
Intangible asset impairment loss |  |  | 53,180,000 |
Goodwill | 1,133,013,000 |  | 1,133,013,000 | $ 1,219,630,000
Trademarks and Trade Names |  |  |  |
Goodwill And Intangible Assets [Line Items] |  |  |  |
Indefinite-lived intangible assets, impairment loss |  |  | 7,535,000 |
Restore Indefinite-lived Tradename |  |  |  |
Goodwill And Intangible Assets [Line Items] |  |  |  |
Indefinite-lived intangible assets, impairment loss | 4,900,000 |  | $ 4,900,000 |
Amortizable life of tradename |  |  | 10 years |
Restore Indefinite-lived Tradename | Sales Revenue, Net | Product Concentration Risk |  |  |  |
Goodwill And Intangible Assets [Line Items] |  |  |  |
Percentage of product to total sales |  |  |  | 60.00%
Kirker Reporting Unit |  |  |  |
Goodwill And Intangible Assets [Line Items] |  |  |  |
Preliminary goodwill impairment losses |  |  | $ 140,500,000 |
Intangible asset impairment loss |  | $ 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 | $ 0 |
Kirker Reporting Unit | Trademarks and Trade Names |  |  |  |
Goodwill And Intangible Assets [Line Items] |  |  |  |
Indefinite-lived intangible assets, impairment loss |  | $ 2,000,000 |  |
Recalculated fair value of identifiable indefinite-lived intangible assets | 5,800,000 |  | 5,800,000 |
Consumer Segment |  |  |  |
Goodwill And Intangible Assets [Line Items] |  |  |  |
Preliminary goodwill impairment losses |  |  | 140,456,000 |
Intangible asset impairment loss | 4,900,000 |  | 52,600,000 |
Goodwill | 449,511,000 |  | 449,511,000 | $ 572,507,000
Industrial Segment |  |  |  |
Goodwill And Intangible Assets [Line Items] |  |  |  |
Other intangible asset accumulated impairment losses, gross |  |  |  | 600,000
Goodwill | $ 510,021,000 |  | $ 510,021,000 | $ 475,355,000

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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=64834752&loc=SL49117168-202975 + Details
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