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Investments | 6 Months Ended
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Nov. 30, 2022
Investments, Debt and Equity Securities [Abstract] |
Investments | Investments Cintas' investments are summarized as follows:
(In thousands) | November 30, 2022 |  | May 31, 2022
Cash surrender value of insurance policies | $ | 238,637 |  |  | $ | 237,136 |
Other investments | 4,937 |  |  | 5,737 |
Total investments | $ | 243,574 |  |  | $ | 242,873 |
Investments are generally evaluated for impairment on an annual basis or when indicators of impairment exist. For the three and six months ended November 30, 2022 and 2021, no impairment losses were recorded.

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- Definition The entire disclosure for investment. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 321 -URI https://asc.fasb.org/topic&trid=75115024 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -URI https://asc.fasb.org/topic&trid=2196928 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 325 -URI https://asc.fasb.org/topic&trid=2197064 Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -URI https://asc.fasb.org/topic&trid=2196965 + Details
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