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Acquisitions and Divestitures (Details) - USD ($) $ in Millions |  |  | 3 Months Ended |
--- | --- | --- | --- | ---
Aug. 31, 2018 | Jun. 07, 2018 | Nov. 30, 2019 | Aug. 31, 2019 | Sep. 01, 2018 | Sep. 30, 2019
Business Acquisition [Line Items] |  |  |  |  |  |
Document Period End Date |  |  |  | Aug. 31, 2019 |  |
Payments to Acquire Intangible Assets |  |  |  | $ 0.0 | $ 4.8 |
Contingent Equity Method Purchase |  |  |  | 33.00% |  |
MAARS |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Percentage of voting interests acquired | 48.20% |  |  |  |  |
Purchase price | $ 6.1 |  |  |  |  |
HAY |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Percentage of voting interests acquired |  | 33.00% |  |  |  |
Purchase price |  | $ 65.5 |  |  |  |
Payments to Acquire Intangible Assets |  | $ 4.8 |  |  |  |
HAY | Subsequent Event |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Percentage of voting interests acquired |  |  |  |  |  | 34.00%
Purchase price |  |  | $ 78.0 |  |  |

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- Definition The end date of the period reflected on the cover page if a periodic report. For all other reports and registration statements containing historical data, it is the date up through which that historical data is presented. If there is no historical data in the report, use the filing date. The format of the date is CCYY-MM-DD. + References No definition available. + Details
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- Definition Percentage of voting equity interests acquired at the acquisition date in the business combination. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463 + Details
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