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Financial Instruments Owned and Financial Instruments Sold, But Not Yet Purchased (Tables) | 9 Months Ended
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Sep. 30, 2023
Investments, Debt and Equity Securities [Abstract] |
Components of Trading Securities Owned and Trading Securities Sold, But Not Yet Purchased | The components of financial instruments owned and financial instruments sold, but not yet purchased, at September 30, 2023 and December 31, 2022 are as follows (in thousands):
|  | September 30, 2023 |  |  | December 31, 2022 |
Financial instruments owned: |  |  |  |  |  |
U.S. government securities |  | $ | 10,479 |  |  | $ | 38,956 |
U.S. government agency securities |  |  | 158,086 |  |  |  | 73,608 |
Agency mortgage-backed securities |  |  | 199,294 |  |  |  | 172,642 |
Asset-backed securities |  |  | 63,046 |  |  |  | 8,270 |
Corporate securities: |  |  |  |  |  |
Fixed income securities |  |  | 321,842 |  |  |  | 202,169 |
Equity securities |  |  | 43,091 |  |  |  | 38,129 |
State and municipal securities |  |  | 163,139 |  |  |  | 126,237 |
Other (1) |  |  | 97,768 |  |  |  | 71,741 |
|  | $ | 1,056,745 |  |  | $ | 731,752 |
Financial instruments sold, but not yet purchased: |  |  |  |  |  |
U.S. government securities |  | $ | 334,630 |  |  | $ | 254,265 |
U.S. government agency securities |  |  | 5,439 |  |  |  | 3,971 |
Agency mortgage-backed securities |  |  | 70,344 |  |  |  | 44,793 |
Corporate securities: |  |  |  |  |  |
Fixed income securities |  |  | 135,080 |  |  |  | 134,381 |
Equity securities |  |  | 20,114 |  |  |  | 11,590 |
Other (2) |  |  | 12,683 |  |  |  | 5,817 |
|  | $ | 578,290 |  |  | $ | 454,817 |
(1) Includes syndicated loans, non-agency mortgage-backed securities, and sovereign debt. (2) Includes asset-backed securities, syndicated loans, and state and municipal securities.

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- Definition Tabular disclosure of financial instruments held by a broker-dealer for its own account (proprietary securities) for trading or investment purposes that are carried at fair value including securities sold, not yet purchased. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 940 -SubTopic 320 -Section 45 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481961/940-320-45-2 + Details
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