Loans and Allowance for Credit Losses on Loans - Nonaccruals (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	$ 22,280	$ 15,395
Non accrual including PCI Loans		15,395
Nonaccrual with no ACL	17,207	11,749
Interest on nonacccrual loans	70,000
Accrued interest reversed against interest income	377,000
Commercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	1,125	144
Nonaccrual with no ACL	1,070
Leases
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	2,638	329
Nonaccrual with no ACL	309	70
Commercial real estate - Investor
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	1,632	1,695
Nonaccrual with no ACL	1,632	1,590
Commercial real estate - Owner occupied
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	9,262	5,180
Nonaccrual with no ACL	6,780	2,366
Real estate - construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual		93
Nonaccrual with no ACL		93
Real estate - Investor
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	928	788
Nonaccrual with no ACL	928	788
Real estate - Owner occupied
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	3,206	2,572
Nonaccrual with no ACL	3,206	2,475
Multifamily
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	2,437	68
Nonaccrual with no ACL	2,437	68
HELOC
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	1,052	1,364
Nonaccrual with no ACL	845	1,154
HELOC - Purchased
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual		180
Nonaccrual with no ACL		180
Other 1
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual		19
Nonaccrual with no ACL		2
Other
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual		19
PCI
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual		2,963
Nonaccrual with no ACL		2,963
Non-PCI
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	22,280	12,432
Nonaccrual with no ACL	$ 17,207	$ 8,786

Amount of financing receivable on nonaccrual status including purchased credit impaired loans.

No definition available.

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- Definition

Amount of financing receivable on nonaccrual status with no allowance for credit loss.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 50
-Paragraph 16
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919258-210447

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- Definition

Amount of financing receivable on nonaccrual status.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 7
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=121611835&loc=d3e5111-111524

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
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-Section 50
-Paragraph 16
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-URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919258-210447

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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.

+ References

No definition available.

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- Definition

The amount of interest income on impaired and nonperforming loans that is due to the change in present value attributable to the passage of time.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 19
-URI http://asc.fasb.org/extlink&oid=121611835&loc=d3e5278-111524

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- Definition

Reflects the amount of additional interest income that would have been recorded if impaired or nonperforming loans were instead current, in compliance with their original terms, and outstanding throughout the reporting period or since origination (if held for part of the period).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 40
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=121585226&loc=d3e18794-111554

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