Loans and Allowance for Credit Losses Total Non-Accrual Loans by Class Segment (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Impaired Financing Receivables [Line Items]
Unpaid principal balance, with related allowance	$ 83,724	$ 68,603
Non-accrual loans with no related allowance for credit losses	59,942	68,595
Unpaid Principal Balance	143,666	137,198
Real estate - commercial mortgage
Impaired Financing Receivables [Line Items]
Unpaid principal balance, with related allowance	20,564	19,909
Non-accrual loans with no related allowance for credit losses	32,251	31,561
Unpaid Principal Balance	52,815	51,470
Commercial - secured
Impaired Financing Receivables [Line Items]
Unpaid principal balance, with related allowance	12,571	13,937
Non-accrual loans with no related allowance for credit losses	17,570	18,056
Unpaid Principal Balance	30,141	31,993
Real estate - residential mortgage
Impaired Financing Receivables [Line Items]
Unpaid principal balance, with related allowance	35,269	24,590
Non-accrual loans with no related allowance for credit losses	0	1,517
Unpaid Principal Balance	35,269	26,107
Real estate - home equity
Impaired Financing Receivables [Line Items]
Unpaid principal balance, with related allowance	8,671	9,398
Non-accrual loans with no related allowance for credit losses	0	190
Unpaid Principal Balance	8,671	9,588
Real-estate - construction
Impaired Financing Receivables [Line Items]
Unpaid principal balance, with related allowance	173	437
Non-accrual loans with no related allowance for credit losses	728	958
Unpaid Principal Balance	901	1,395
Consumer
Impaired Financing Receivables [Line Items]
Unpaid principal balance, with related allowance	229	332
Non-accrual loans with no related allowance for credit losses	0	0
Unpaid Principal Balance	229	332
Equipment lease financing and other
Impaired Financing Receivables [Line Items]
Unpaid principal balance, with related allowance	6,247	0
Non-accrual loans with no related allowance for credit losses	9,393	16,313
Unpaid Principal Balance	$ 15,640	$ 16,313

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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=123577603&loc=d3e5212-111524

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