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Investments (Tables)
9 Months Ended
Feb. 28, 2022
Investments, Debt and Equity Securities [Abstract]  
Summary of Investments
Cintas' investments are summarized as follows:
(In thousands)February 28,
2022
May 31,
2021
Cash surrender value of insurance policies$254,245 $252,061 
Equity method investments3,522 19,388 
Cost method investments2,163 3,167 
Total investments$259,930 $274,616