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Receivables From And Payables To Brokers, Dealers And Clearing Organizations (Amounts Receivable From Brokers, Dealers, And Clearing Organizations) (Details) - USD ($) $ in Thousands | Sep. 30, 2021 | Dec. 31, 2020
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Due To And From Broker Dealers And Clearing Organizations [Abstract] |  |
Deposits paid for securities borrowed | $ 314,154 | $ 313,131
Receivables from clearing organizations | 131,469 | 229,070
Securities failed to deliver | 42,806 | 7,291
Receivables from brokers, dealers and clearing organizations, Total | $ 488,429 | $ 549,492

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- Definition This is the amount of cash advanced as security in return for borrowing securities from another party. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123599511&loc=d3e64711-112823 + Details
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- Definition Amount receivable from broker-dealers and clearing organizations, including, but not limited to, securities failed-to-deliver, certain deposits for securities borrowed, open transactions, good faith and margin deposits, commissions and floor brokerage receivables. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 940 -SubTopic 20 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=35710130&loc=d3e41645-110958 + Details
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- Definition Amount of right to receive cash and securities on deposit with clearing organizations. Clearing organizations perform post trade processing and trade comparisons among numerous broker-dealers and act as settlement agents between buying and selling broker-dealers. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 940 -SubTopic 310 -URI http://asc.fasb.org/subtopic&trid=2176284 + Details
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- Definition Amount receivable as the result of a fail-to-deliver. A fail-to-deliver is a securities sale to another broker-dealer that has not been delivered to buying broker-dealer by the close of business on the settlement date. + References No definition available. + Details
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