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Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement.

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Amount of increase in allowance for credit loss on financing receivable from recovery.

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Amount of expected credit loss for credit exposure on off-balance-sheet commitment, including but not limited to, loan commitment, standby letter of credit, financial guarantee not accounted for as insurance. Excludes off-balance sheet credit exposure accounted for as insurance and instrument accounted for under derivatives and hedging.

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Amount of expense related loan transactions, lease transactions, credit loss from transactions other than loan and lease transactions, and other loss based on assessment of uncollectability from the counterparty to reduce the account to their net realizable value.

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Loans (Summary Of Activity In Allowance For Loan And Lease Losses) (Details) - USD ($) $ in Thousands	3 Months Ended				9 Months Ended
	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Jan. 01, 2020	Dec. 31, 2019
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Provision for Loan, Lease, and Other Losses	$ 4,728			$ 1,005	$ 33,531	$ 1,368
Off-Balance Sheet, Credit Loss, Liability	3,300	$ 3,100			3,300		$ 1,500
Financing Receivable, Allowance for Credit Loss, Purchased with Credit Deterioration, Increase					2,686
Financing Receivable, Nonaccrual	26,436				26,436			$ 17,781
Paycheck Protection Program [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Ending balance	0				0
One Commercial relationship [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Financing Receivable, Nonaccrual	1,800				1,800
Total loans
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	54,362
Provision for Loan, Lease, and Other Losses	4,501				31,667
Financing Receivable, Allowance for Credit Loss, Writeoff	965				3,721
Financing Receivable, Allowance for Credit Loss, Recovery	230				2,857
Ending balance	58,128	54,362			58,128
Commercial real estate, other
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	2,662
Provision for Loan, Lease, and Other Losses	(148)				1,863
Financing Receivable, Allowance for Credit Loss, Writeoff	0				0
Financing Receivable, Allowance for Credit Loss, Recovery	0				0
Ending balance	2,514	2,662			2,514
Financing Receivable, Allowance for Credit Loss, Purchased with Credit Deterioration, Increase					51
Financing Receivable, Nonaccrual	4				4			411
Commercial Real Estate Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	19,148
Provision for Loan, Lease, and Other Losses	(8)				10,614
Financing Receivable, Allowance for Credit Loss, Writeoff	(109)				(254)
Financing Receivable, Allowance for Credit Loss, Recovery	4				126
Ending balance	19,035	19,148			19,035
Financing Receivable, Allowance for Credit Loss, Purchased with Credit Deterioration, Increase					1,356
Financing Receivable, Nonaccrual	9,534				9,534			$ 6,801
Commercial Portfolio Segment
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	10,106
Provision for Loan, Lease, and Other Losses	4,127				7,356
Financing Receivable, Allowance for Credit Loss, Writeoff	(148)				(1,100)
Financing Receivable, Allowance for Credit Loss, Recovery	0				2,009
Ending balance	14,085	10,106			14,085
Financing Receivable, Allowance for Credit Loss, Purchased with Credit Deterioration, Increase					860
Commercial Portfolio Segment \| One Commercial relationship [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Financing Receivable, Allowance for Credit Loss, Recovery		750	$ 1,200
Ending balance	1,900				1,900
Commercial Portfolio Segment \| Triumph Premium Finance [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Ending balance	932				932
Residential Portfolio Segment
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	6,380
Provision for Loan, Lease, and Other Losses	(371)				1,626
Financing Receivable, Allowance for Credit Loss, Writeoff	(121)				(255)
Financing Receivable, Allowance for Credit Loss, Recovery	100				257
Ending balance	$ 5,988	$ 6,380			5,988
Financing Receivable, Allowance for Credit Loss, Purchased with Credit Deterioration, Increase					$ 383