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Allowance for Credit Losses (Narrative) (Details) - Accounting Standards Update 2019-04 [Member] $ in Millions	9 Months Ended
	Sep. 30, 2020 USD ($)
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable Allowance For Credit Losses Period Increase Decrease	$ 89.7
Increase in loan provision	39.1
PCD [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable Allowance For Credit Losses Period Increase Decrease	$ 50.5
Percent of total loan portfolio	30.00%
Non-PCD [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable Allowance For Credit Losses Period Increase Decrease	$ 39.2
Percent of total loan portfolio	70.00%

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- Definition

Increase (Decrease) In Loan Provision

+ References

No definition available.

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- Definition

Percent Of Total Loan Portfolio

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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 (decrease) in allowance for credit loss on financing receivable.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 11B
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=118936363&loc=SL6953423-111524

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 50
-Paragraph 13
-URI http://asc.fasb.org/extlink&oid=119407570&loc=SL82919249-210447

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