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v3.3.1.900

Collateralized Transactions - Additional Information (Details) |  | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Sep. 26, 2013 USD ($) | Jun. 30, 2015 USD ($) | Mar. 31, 2014 USD ($) | Sep. 30, 2015 | Dec. 31, 2015 USD ($) dealer | Dec. 31, 2014 USD ($) | Dec. 31, 2013 USD ($)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |  |  |  |  |
Bank call loans |  |  |  |  | $ 100,200,000 |  | $ 59,400,000 |  |
Amounts pledged |  |  |  |  | 546,334,000 |  | 518,123,000 |  |
Customer securities under customer margin loans available to be pledged |  |  |  |  | 1,400,000,000 |  |  |  |
Customer securities under customer margin loans agreement available to be repledged |  |  |  |  | 88,500,000 |  |  |  |
Customer securities deposited to secure obligations and margin requirements under option contracts |  |  |  |  | 416,000,000 |  |  |  |
Outstanding letters of credit |  |  |  |  | 0 |  |  |  |
Fair value of the reverse repurchase agreements |  |  |  |  | 206,499,000 | [1] | 250,000,000 | [2] |
Fair value of the repurchase agreements |  |  |  |  | 0 |  |  |  |
Carrying value of pledged securities owned that can be sold or re-pledged by the counterparty |  |  |  |  | 546,300,000 |  | 518,100,000 |  |
Carrying value of securities owned by the Company loaned or pledged |  |  |  |  | $ 142,700,000 |  | 149,100,000 |  |
Amount of first interim distribution | $ 9,500,000 | $ 437,000 | $ 600,000 |  |  |  |  |  |
Number of broker-dealers | dealer |  |  |  |  | 3 |  |  |  |
Receivable from brokers and clearing organizations |  |  |  |  | $ 129,900,000 |  |  |  |
Loans to citizens |  |  |  |  | $ 0 |  |  |  |
Minimum |  |  |  |  |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |  |  |  |  |
Period to complete transactions |  |  |  | 1 day |  |  |  |  |
Maximum |  |  |  |  |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |  |  |  |  |
Period to complete transactions |  |  |  | 3 days |  |  |  |  |
Credit Concentration Risk |  |  |  |  |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |  |  |  |  |
Guaranteed mortgages for a period |  |  |  |  | 15 days |  |  |  |
Interest expense |  |  |  |  | $ 928,500 |  | 570,700 |  | $ 764,500
Reverse Repurchase Agreements |  |  |  |  |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |  |  |  |  |
Customer securities under customer margin loans agreement available to be repledged |  |  |  |  | 278,800,000 |  | 312,600,000 |  |
Securities received as collateral under securities borrowed transaction with market value |  |  |  |  | 278,800,000 |  | 314,100,000 |  |
Securities Borrowed Transactions |  |  |  |  |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |  |  |  |  |
Customer securities under customer margin loans agreement available to be repledged |  |  |  |  | 36,000,000 |  | 4,400,000 |  |
Securities received as collateral under securities borrowed transaction with market value |  |  |  |  | 217,000,000 |  | 235,100,000 |  |
Corporate |  |  |  |  |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |  |  |  |  |
Amounts pledged |  |  |  |  | 142,000,000 |  |  |  |
Other Than Corporate Customer |  |  |  |  |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |  |  |  |  |
Collateralized loans, collateralized by customer securities |  |  |  |  | 327,400,000 |  |  |  |
Carrying Value | Fair Value, Measurements, Nonrecurring |  |  |  |  |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |  |  |  |  |
Warehouse Agreement Borrowings |  |  |  |  | $ 54,300,000 |  | $ 16,700,000 |  |
[1] | Included in securities purchased under agreements to resell where the Company has elected fair value option treatment.
[2] | Included in securities purchased under agreements to resell where the Company has elected fair value option treatment.

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