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Other Derivatives - Hedging instruments on statements of operations (Details) - Other income / (expense) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Amount of Gain or (Loss) Recognized in Income on Derivative | $ 3,433 | $ 5,398 | $ 245
Interest rate products |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Amount of Gain or (Loss) Recognized in Income on Derivative | 2,797 | 153 | (8)
Mortgage banking derivatives |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Amount of Gain or (Loss) Recognized in Income on Derivative | 636 | 5,213 | 280
Other contracts |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Amount of Gain or (Loss) Recognized in Income on Derivative | $ 0 | $ 32 | $ (27)

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- Definition Amount of realized and unrealized gain (loss) of derivative instruments not designated or qualifying as hedging instruments. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4CC -URI http://asc.fasb.org/extlink&oid=125515794&loc=SL109998890-113959 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=125515794&loc=SL5624171-113959 + Details
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