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Derivative Financial Instruments (Tables) | 6 Months Ended
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Jun. 30, 2021
Agency Business |
Derivatives, Fair Value [Line Items] |
Schedule of non-qualifying derivative financial instruments | A summary of our non-qualifying derivative financial instruments is as follows ($ in thousands): ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | June 30, 2021
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | Fair Value
​ | ​ | ​ | ​ | Notional | ​ | Balance Sheet | ​ | Derivative | ​ | Derivative
Derivative |  | Count |  | Value |  | Location |  | Assets |  | Liabilities
Agency Business | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Rate Lock Commitments | ​ | 5 | ​ | $ | 16,550 | ​ | Other Assets/Other Liabilities | ​ | $ | 124 | ​ | $ | (127)
Forward Sale Commitments | ​ | 43 | ​ | ​ | 328,069 | ​ | Other Assets/Other Liabilities | ​ | ​ | 2,263 | ​ | ​ | (266)
Swap Futures | ​ | 2,196 | ​ | ​ | 219,600 | ​ | ​ | ​ | ​ | — | ​ | ​ | —
​ | ​ | ​ | ​ | $ | 564,219 | ​ | ​ | ​ | $ | 2,387 | ​ | $ | (393)
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 31, 2020
Agency Business |  | ​ |  | ​ | ​ |  | ​ |  | ​ | ​ |  | ​ | ​
Rate Lock Commitments | ​ | 7 | ​ | $ | 136,354 | ​ | Other Assets/Other Liabilities | ​ | $ | 1,967 | ​ | $ | (231)
Forward Sale Commitments | ​ | 114 | ​ | ​ | 1,048,763 | ​ | Other Assets/Other Liabilities | ​ | ​ | 1,925 | ​ | ​ | (990)
Swap Futures | ​ | 453 | ​ | ​ | 45,300 | ​ | ​ | ​ | ​ | — | ​ | ​ | —
​ | ​ | ​ | ​ | $ | 1,230,417 | ​ | ​ | ​ | $ | 3,892 | ​ | $ | (1,221)

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Tabular disclosure of the location and fair value amounts of derivative instruments (and nonderivative instruments that are designated and qualify as hedging instruments) reported in the statement of financial position. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5624163-113959 + Details
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