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Goodwill and Other Intangible Assets - Additional Information (Detail) - USD ($) | 3 Months Ended | 9 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
May 31, 2017 | Nov. 30, 2016 | Feb. 28, 2017 | May 31, 2017 | May 31, 2016 | May 31, 2015 | May 31, 2009
Goodwill And Intangible Assets [Line Items] |  |  |  |  |  |  |
Accumulated impairment losses | $ 156,300,000 |  |  | $ 156,300,000 | $ 14,900,000 |  |
Intangible asset amortization expense |  |  |  | 41,900,000 | 40,500,000 | $ 32,900,000 |
Future amortization expense of intangible asset in 2018 | 40,300,000 |  |  | 40,300,000 |  |  |
Future amortization expense of intangible asset in 2019 | 38,100,000 |  |  | 38,100,000 |  |  |
Future amortization expense of intangible asset in 2020 | 35,800,000 |  |  | 35,800,000 |  |  |
Future amortization expense of intangible asset in 2021 | 33,000,000 |  |  | 33,000,000 |  |  |
Future amortization expense of intangible asset in 2022 | 32,200,000 |  |  | 32,200,000 |  |  |
Intangible asset impairment loss | 0 |  |  |  |  |  |
Preliminary goodwill impairment losses |  |  |  | 141,394,000 |  |  |
Goodwill | 1,143,913,000 |  |  | 1,143,913,000 | $ 1,219,630,000 | 1,215,688,000 |
Restore Indefinite-lived Tradename |  |  |  |  |  |  |
Goodwill And Intangible Assets [Line Items] |  |  |  |  |  |  |
Intangible asset impairment loss |  |  | $ 4,900,000 |  |  |  |
Indefinite-lived intangible assets, impairment loss |  |  |  | $ 4,900,000 |  |  |
Amortized intangible assets, amortization period |  |  |  | 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] |  |  |  |  |  |  |
Intangible asset impairment loss |  |  |  | $ 46,000,000 |  |  |
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% |  |  |
Preliminary goodwill impairment losses |  |  |  | $ 140,500,000 |  |  |
Goodwill |  | $ 0 |  |  |  |  |
Kirker Reporting Unit | Trademarks and Trade Names |  |  |  |  |  |  |
Goodwill And Intangible Assets [Line Items] |  |  |  |  |  |  |
Indefinite-lived intangible assets, impairment loss |  |  |  | 2,100,000 |  |  |
Recalculated fair value of identifiable indefinite-lived intangible assets | 5,800,000 |  |  | 5,800,000 |  |  |
Consumer Segment |  |  |  |  |  |  |
Goodwill And Intangible Assets [Line Items] |  |  |  |  |  |  |
Accumulated impairment losses | 141,400,000 |  |  | 141,400,000 |  |  |
Intangible asset impairment loss |  |  |  | 53,000,000 |  |  |
Preliminary goodwill impairment losses |  |  |  | 141,394,000 |  |  |
Goodwill | 453,600,000 |  |  | 453,600,000 | $ 572,507,000 | 573,054,000 |
Industrial Segment |  |  |  |  |  |  |
Goodwill And Intangible Assets [Line Items] |  |  |  |  |  |  |
Accumulated impairment losses |  |  |  |  |  |  | $ 14,900,000
Other intangible asset accumulated impairment losses, gross |  |  |  |  | 600,000 |  |
Goodwill | $ 516,335,000 |  |  | $ 516,335,000 | $ 475,409,000 | $ 476,700,000 |

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- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Definition For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=64851502&loc=d3e6351-108592 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=73719730&loc=d3e13531-108611 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=64851502&loc=d3e6404-108592 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 21 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=73719730&loc=d3e13537-108611 + Details
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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 Percentage of assumed long-term growth in revenues, used as an input to measure fair value. + 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 of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Definition Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Definition Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + 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=64834752&loc=SL49117168-202975 + Details
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