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Note 11 - Intangible Assets - Components of Intangible Assets (Details) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Indefinite life intangible assets | $ 52,485 | $ 53,004
Finite life intangible assets, gross | 1,506,532 | 805,129
Accumulated amortization | 399,107 | 296,303
Finite life intangible assets, net | 1,107,425 | 508,826
Intangible assets, gross | 1,559,017 | 858,133
Intangible assets, net | 1,159,910 | 561,830
Customer Lists and Relationships [Member] |  |
Finite life intangible assets, gross | 695,007 | 352,860
Accumulated amortization | 187,743 | 152,026
Finite life intangible assets, net | 507,264 | 200,834
Investment Management Contracts [Member] |  |
Finite life intangible assets, gross | 589,885 | 270,600
Accumulated amortization | 126,904 | 85,012
Finite life intangible assets, net | 462,981 | 185,588
Mortgage Servicing Rights ("MSRs") [Member] |  |
Finite life intangible assets, gross | 170,213 | 147,878
Accumulated amortization | 65,771 | 41,455
Finite life intangible assets, net | 104,442 | 106,423
Trademarks and Trade Names [Member] |  |
Finite life intangible assets, gross | 27,702 | 12,600
Accumulated amortization | 4,389 | 4,861
Finite life intangible assets, net | 23,313 | 7,739
Management Contracts and Other [Member] |  |
Finite life intangible assets, gross | 15,426 | 18,791
Accumulated amortization | 10,635 | 12,149
Finite life intangible assets, net | 4,791 | 6,642
Brokerage Backlog [Member] |  |
Finite life intangible assets, gross | 8,299 | 2,400
Accumulated amortization | 3,665 | 800
Finite life intangible assets, net | 4,634 | 1,600
Licensing Agreements [Member] |  |
Indefinite life intangible assets | 29,200 | 29,200
Trademark and Trade Names [Member] |  |
Indefinite life intangible assets | $ 23,285 | $ 23,804

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