Financing Receivable, Allowance for Credit Loss and Unfunded Lending Commitments, Total

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- Definition

Amount, after recovery, of writeoff of financing receivable, charged against allowance for credit loss.

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- Definition

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

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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.

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- Definition

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

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Amount of writeoff of financing receivable, charged against allowance for credit loss.

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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 (reversal of expense) for expected credit loss for off-balance sheet credit exposure. Excludes off-balance sheet credit exposure accounted for as insurance and instrument accounted for under derivatives and hedging.

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Amount of credit loss expense (reversal of expense) for financing receivable.

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Loans And Allowance For Credit Losses (Summary of Activity in the Allowance For Credit Losses) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Jan. 01, 2020	Dec. 31, 2019
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Allowance for Credit Loss	$ 220,834	$ 139,643
Financing Receivable, Credit Loss, Expense (Reversal)	116,049
Financing Receivable, Allowance for Credit Loss, Writeoff	50,047
Financing Receivable, Allowance for Credit Loss, Recovery	15,189
Financing Receivable, Allowance for Credit Loss, Writeoff, after Recovery	34,858
Off-Balance Sheet, Credit Loss, Liability	38,307	17,165	$ 1,075
Off-Balance Sheet, Credit Loss, Liability, Credit Loss Expense (Reversal)	21,142
Financing Receivable, Allowance for Credit Loss and Unfunded Lending Commitments, Total	259,141
Previously Reported [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Allowance for Credit Loss			160,682
Off-Balance Sheet, Credit Loss, Liability			1,075
Revision of Prior Period, Adjustment [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Allowance for Credit Loss		(21,039)
Off-Balance Sheet, Credit Loss, Liability		16,090
Commercial Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Allowance for Credit Loss	121,549	62,049
Financing Receivable, Credit Loss, Expense (Reversal)	63,115
Financing Receivable, Allowance for Credit Loss, Writeoff	7,862
Financing Receivable, Allowance for Credit Loss, Recovery	4,247
Financing Receivable, Allowance for Credit Loss, Writeoff, after Recovery	3,615
Off-Balance Sheet, Credit Loss, Liability	37,259	16,456
Off-Balance Sheet, Credit Loss, Liability, Credit Loss Expense (Reversal)	20,803
Financing Receivable, Allowance for Credit Loss and Unfunded Lending Commitments, Total	158,808
Commercial Portfolio Segment [Member] \| Previously Reported [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Allowance for Credit Loss			91,760
Off-Balance Sheet, Credit Loss, Liability			399
Commercial Portfolio Segment [Member] \| Revision of Prior Period, Adjustment [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Allowance for Credit Loss		(29,711)
Off-Balance Sheet, Credit Loss, Liability		16,057
Personal Banking Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Allowance for Credit Loss	99,285	77,594
Financing Receivable, Credit Loss, Expense (Reversal)	52,934
Financing Receivable, Allowance for Credit Loss, Writeoff	42,185
Financing Receivable, Allowance for Credit Loss, Recovery	10,942
Financing Receivable, Allowance for Credit Loss, Writeoff, after Recovery	31,243
Off-Balance Sheet, Credit Loss, Liability	1,048	709
Off-Balance Sheet, Credit Loss, Liability, Credit Loss Expense (Reversal)	339
Financing Receivable, Allowance for Credit Loss and Unfunded Lending Commitments, Total	$ 100,333
Personal Banking Portfolio Segment [Member] \| Previously Reported [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Allowance for Credit Loss			68,922
Off-Balance Sheet, Credit Loss, Liability			$ 676
Personal Banking Portfolio Segment [Member] \| Revision of Prior Period, Adjustment [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Allowance for Credit Loss		8,672
Off-Balance Sheet, Credit Loss, Liability		$ 33