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Investments - Summary of Investments (Details) - USD ($) $ in Thousands | Aug. 31, 2022 | May 31, 2022
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Investments, Debt and Equity Securities [Abstract] |  |
Cash surrender value of insurance policies | $ 233,650 | $ 237,136
Other investments | 5,685 | 5,737
Total investments | $ 239,335 | $ 242,873

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- Definition Carrying amount as of the balance sheet date of amounts which could be received based on the terms of the insurance contract upon surrendering life policies owned by the entity. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(17)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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