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Revenue Recognition (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Nov. 30, 2023 | Nov. 30, 2022 | Nov. 30, 2023 | Nov. 30, 2022
Revenue Recognition |  |  |  |
Practical Expedient, Incremental costs of obtaining a contract |  |  | true |
Practical Expedient, Remaining performance obligations |  |  | true |
Favorable cumulative catch-up adjustments, net | $ (0.3) | $ 2.9 | $ 0.2 | $ 5.8
Favorable cumulative catch-up adjustments | 4.0 | 4.7 | 7.0 | 7.6
Unfavorable cumulative catch-up adjustments | $ (4.3) | $ (1.8) | $ (6.8) | $ (1.8)

X
- Definition Amount of increase in revenue recognized for cumulative catch-up adjustment from change in measure of progress which increases right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time. + References No definition available. + Details
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X
- Definition Amount of decrease in revenue recognized for cumulative catch-up adjustment from change in measure of progress which decreases right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time. + References No definition available. + Details
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X
- Definition Indicates (true false) whether practical expedient was elected not to disclose amount of transaction price allocated to remaining performance obligation and explanation of expected timing of revenue recognition for reporting period presented prior to date of initial application under retrospective method. + References No definition available. + Details
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- Definition Indicates (true false) whether practical expedient was elected to recognize incremental cost of obtaining contract as expense when incurred if amortization period would have been one year or less. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 22 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479806/606-10-50-22 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 340 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479483/340-40-50-5 + Details
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