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Investments
9 Months Ended
Jun. 30, 2022
Investments, Debt and Equity Securities [Abstract]  
Investments InvestmentsNon-current investments consisted of the following:
 June 30, 2022September 30, 2021
Equity and fixed income mutual funds$— $6,936 
Life insurance policies4,437 4,626 
Equity-method investments345 458 
Other (primarily cost-method) investments18,818 18,418 
 $23,600 $30,438