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Derivative Instruments and Hedging Activities (Effect of Derivative Instruments on the Income Statement) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in income	$ (377)	$ 1,931	$ 1,660	$ 4,617
Derivatives Not Designated as Hedging Instruments [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in income	377	1,931	1,660	4,617
Interest Rate Swap [Member] | Derivatives Not Designated as Hedging Instruments [Member] | Income from Derivative Instruments, Net [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in income	248	1,310	1,687	3,715
Credit Contract [Member] | Derivatives Not Designated as Hedging Instruments [Member] | Income from Derivative Instruments, Net [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in income	38	13	74	136
Mortgage Banking [Member] | Derivatives Not Designated as Hedging Instruments [Member] | Income from Derivative Instruments, Net [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in income	$ 91	$ 608	$ (101)	$ 766

X

- Definition

Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4A
-Subparagraph (b)(1)
-URI http://asc.fasb.org/extlink&oid=125515794&loc=SL5618551-113959

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- Definition

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+ References

No definition available.

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