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Derivative Instruments (Schedule Of Notional Amounts Of Derivative Instruments) (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Derivative [Line Items]
Derivative, Notional Amount	$ 3,179,428	$ 2,916,181
Interest rate swaps
Derivative [Line Items]
Derivative, Notional Amount	1,980,368	2,229,419
Interest Rate Floor
Derivative [Line Items]
Derivative, Notional Amount	500,000	0
Interest rate caps
Derivative [Line Items]
Derivative, Notional Amount	152,784	152,058
Credit risk participation agreements
Derivative [Line Items]
Derivative, Notional Amount	536,188	485,633
Foreign exchange contracts
Derivative [Line Items]
Derivative, Notional Amount	7,435	5,119
Mortgage loan commitments
Derivative [Line Items]
Derivative, Notional Amount	984	21,787
Mortgage loan forward sale contracts
Derivative [Line Items]
Derivative, Notional Amount	669	1,165
Forward TBA contracts
Derivative [Line Items]
Derivative, Notional Amount	$ 1,000	$ 21,000

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- Definition

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+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1B
-URI https://asc.fasb.org/extlink&oid=125515794&loc=SL5580258-113959

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1A
-Subparagraph (d)
-URI https://asc.fasb.org/extlink&oid=125515794&loc=SL5579245-113959

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