Quarterly report pursuant to Section 13 or 15(d)

EXTERNAL INVESTMENT MANAGER - Balance Sheet (Details)

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EXTERNAL INVESTMENT MANAGER - Balance Sheet (Details) - USD ($)
$ in Thousands
Sep. 30, 2022
Jun. 30, 2022
Mar. 31, 2022
Dec. 31, 2021
Sep. 30, 2021
Jun. 30, 2021
Mar. 31, 2021
Dec. 31, 2020
Investment Company, Nonconsolidated Subsidiary [Line Items]                
Total assets $ 4,134,966     $ 3,690,290        
Dividend payable to MSCC and its subsidiaries 16,789     15,159        
Equity 1,979,420 $ 1,865,163 $ 1,873,654 1,788,846 $ 1,684,307 $ 1,604,841 $ 1,540,164 $ 1,514,767
Total liabilities and net assets 4,134,966     3,690,290        
External Investment Manager                
Investment Company, Nonconsolidated Subsidiary [Line Items]                
Cash 309     0        
Accounts receivable - advisory clients 5,917     5,595        
Intangible Asset 29,500     29,500        
Total assets 35,726     35,095        
Accounts payable to MSCC and its subsidiaries 4,588     3,288        
Dividend payable to MSCC and its subsidiaries 1,638     2,307        
Equity 29,500     29,500        
Total liabilities and net assets $ 35,726     $ 35,095