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Quarterly Result of Operations (Parenthetical) (Detail) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Nov. 30, 2016 | May 31, 2017
Quarterly Financial Information [Line Items] |  |
Pretax goodwill and intangible asset impairment losses |  | $ 193,198
Kirker Reporting Unit |  |
Quarterly Financial Information [Line Items] |  |
Pretax goodwill and intangible asset impairment losses | $ 188,300 |
Flowcrete Polymer Flooring Business | Middle East | Bad Debt and Inventory Reserve |  |
Quarterly Financial Information [Line Items] |  |
Pretax charges relating to decision to exit | $ 12,300 |

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- Definition Amount of increase (decrease) in allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset or that reflect a liability established to represent expected future costs. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690 + Details
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