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Merger - Schedule of Merger-Related One-Time and Conversion Costs (Details) - Bank of Marin - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Restructuring Cost and Reserve [Line Items]
Total merger-related one-time and conversion costs	$ 5,142	$ 0	$ 5,359	$ 0
Personnel and severance
Restructuring Cost and Reserve [Line Items]
Total merger-related one-time and conversion costs	2,668	0	2,668	0
Professional services
Restructuring Cost and Reserve [Line Items]
Total merger-related one-time and conversion costs	1,778	0	1,979	0
Data processing
Restructuring Cost and Reserve [Line Items]
Total merger-related one-time and conversion costs	433	0	433	0
Other expense
Restructuring Cost and Reserve [Line Items]
Total merger-related one-time and conversion costs	$ 263	$ 0	$ 279	$ 0

X

- Definition

The amount of cash paid during the reporting period for charges associated with the mergers.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 25
-Subparagraph (g)
-URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3536-108585

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+ References

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