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Investments
 12 Months Ended
May 31, 2022
Investments, Debt and Equity Securities [Abstract]  
Investments Investments
Cintas' investments are summarized as follows at May 31:

(In thousands)20222021
Cash surrender value of insurance policies$237,136 $252,061 
Equity method investments3,574 19,388 
Cost method investments2,163 3,167 
Total investments$242,873 $274,616 

Investments are generally evaluated for impairment on an annual basis or when indicators of impairment exist. For fiscal years 2022, 2021 and 2020, no impairment losses were recorded.

During fiscal 2022, Cintas acquired the remaining interest of an equity method investment, and as a result, such investment is no longer accounted for as an equity method investment at May 31, 2022, and is no longer included in the table above. See Note 10 entitled Acquisitions for more information.