Quantity of residential mortgage loans modified

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Unpaid principal balance of a non TDR mortgage loan modification.

+ References

No definition available.

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Amount of financing receivable modified as troubled debt restructuring.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI http://asc.fasb.org/extlink&oid=118936363&loc=SL6953676-111524

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 40
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=118939409&loc=d3e18845-111554

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- Definition

Number of financing receivable contracts modified as troubled debt restructuring within previous 12 months, with subsequent payment default.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 34
-URI http://asc.fasb.org/extlink&oid=118936363&loc=SL6953682-111524

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Amount of unpaid principal balance of impaired financing receivables with related allowance for credit losses and without related allowance for credit losses.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 15
-Subparagraph (a)(4)
-URI http://asc.fasb.org/extlink&oid=118936363&loc=d3e5212-111524

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- Definition

Amount of unfunded portion of contractual agreement to lend funds to borrower for financing receivable modified as troubled debt restructuring.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 40
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=118939409&loc=d3e18794-111554

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Allowance for credit losses - Allowance for loan losses - Additional Information (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2020 USD ($) loans shares	Mar. 31, 2019 loans	Dec. 31, 2019 USD ($)
Financing Receivable
Troubled debt restructurings	$ 1,604,482		$ 1,587,684
Aggregated unpaid principal balance			1,223,205
Loan count \| loans	195	185
Commercial and Industrial
Financing Receivable
Aggregated unpaid principal balance			91,866
Mortgages
Financing Receivable
Troubled debt restructurings	$ 1,160,829		1,139,597
Aggregated unpaid principal balance			624,368
Loan count \| loans	39	8
Mortgages \| Guaranteed by us sponsored entities
Financing Receivable
Aggregated unpaid principal balance	$ 639,000		625,000
Residential mortgage loans \| COVID-19
Financing Receivable
Unpaid principal balance non TDR modification	$ 832,000
Loans non TDR modification \| shares	6,304
Credit cards \| COVID-19
Financing Receivable
Unpaid principal balance non TDR modification	$ 22,000
Loans non TDR modification \| shares	3,798
Commercial
Financing Receivable
Troubled debt restructurings	$ 348,736		349,448
Outstanding commitments to lend additional funds to debtors owing receivables whose terms have been modified in troubled debt restructurings	$ 12,000		$ 14,000
Commercial \| Commercial and Industrial
Financing Receivable
Loan count \| loans	2	1