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Investments (Tables)
 12 Months Ended
Dec. 31, 2022
Schedule of Investments [Abstract]  
Schedule of Investments The Company's investments, excluding the assets of CIP discussed in Note 21, at December 31, 2022 and 2021 were as follows: 
 December 31,
(in thousands)20222021
Investment securities - fair value$76,999 $80,335 
Equity method investments (1)11,448 13,038 
Nonqualified retirement plan assets10,154 13,321 
Other investments1,729 2,196 
Total investments$100,330 $108,890 
(1)The Company's equity method investments are valued on a three-month lag based upon the availability of financial information.
Schedule of Marketable Securities The composition of the Company's investment securities - fair value was as follows: 
December 31, 2022December 31, 2021
(in thousands)CostFair
Value		CostFair
Value
Investment Securities - fair value:
Sponsored funds$67,472 $62,744 $63,090 $66,326 
Equity securities13,440 14,255 10,659 14,009 
Total investment securities - fair value$80,912 $76,999 $73,749 $80,335