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Consolidated Statements of Financial Condition (Parenthetical) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | --- | ---
Debt Securities, Available-for-sale, Amortized Cost | $ 802,652 | $ 706,826 |
Accounts Receivable, Allowances | 4,683 | 2,704 | $ 5,372
Furniture, Equipment and Leasehold Improvements, Accumulated Depreciation and Amortization | $ 187,077 | 165,857 |
Intangible Assets, Accumulated Amortization |  | $ 3,294 |
Treasury Stock at Cost, shares | 41,339,113 | 36,900,858 |
Class A [Member] |  |  |
Common Stock, Par Value (in dollars per share) | $ 0.01 | $ 0.01 |
Common Stock, Shares Authorized | 1,000,000,000 | 1,000,000,000 |
Common Stock, Shares, Issued | 79,686,375 | 74,804,288 |
Common Stock, Shares, Outstanding | 38,347,262 | 37,903,430 |
Class B [Member] |  |  |
Common Stock, Par Value (in dollars per share) | $ 0.01 | $ 0.01 |
Common Stock, Shares Authorized | 1,000,000 | 1,000,000 |
Common Stock, Shares, Issued | 50 | 53 |
Common Stock, Shares, Outstanding | 50 | 53 |

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