Receivables and Payables - Brokers, Dealers, and Clearing Organizations (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Receivables from brokers, dealers and clearing organizations
Broker-dealers	$ 177,925	$ 147,116
Clearing organizations	12,060	5,117
Securities borrowed	18,458	374
Allowance for doubtful accounts	(845)	(313)
Total	207,598	152,294
Payables to brokers, dealers and clearing organizations
Broker-dealers	78,059	56,894
Clearing organizations	7,542	8,096
Securities loaned	21,027	35,198
Total	$ 106,628	$ 100,188

Amounts payable to clearing organizations on open transactions and floor-brokerage payables.

No definition available.

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- Definition

Represents the allowance for doubtful accounts on receivables from brokers, dealers and clearing organizations.

+ References

No definition available.

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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://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
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-Subparagraph (SX 210.9-03(6))
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- Definition

The amount of cash received as security in return for loaning securities to another party.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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-Subparagraph (SX 210.6-04(11))
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- Definition

Amount receivable from correspondent broker-dealer.

+ References

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-Topic 310
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- Definition

Amount payable to correspondent broker-dealer.

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No definition available.

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- Definition

Amount payable to broker-dealers and clearing organizations, including, but not limited to, securities failed-to-receive, certain deposits received for securities loaned, open transactions, and floor-brokerage payables.

+ References

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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

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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

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