Loans and allowance for credit losses - Changes in Value of Accretable Yield for PCI Loans (Details) - PCI Loans $ in Thousands	12 Months Ended
Dec. 31, 2019 USD ($)
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield Movement Schedule [Roll Forward]
Balance at the beginning of period	$ (16,587)
Additions through business combinations	(1,167)
Principal reductions and other reclassifications from nonaccretable difference	61
Accretion	7,003
Changes in expected cash flows	(360)
Balance at end of period	$ (11,050)

Certain Loans Acquired In Transfer Not Accounted For As Debt Securities, Accretable Yield, Business Combinations

No definition available.

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- Definition

Certain loans acquired in transfer not accounted for as debt securities accretable yield other changes.

+ References

No definition available.

+ Details

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- Definition

certain loans acquired in transfer not accounted for as debt securities accretable yield principal repayment and reclassification from nonaccretable difference.

+ References

No definition available.

+ Details

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- Definition

Amount of the excess of a loan's cash flows expected to be collected over the investor's initial investment in acquired loans not accounted for as debt securities with evidence of deterioration of credit quality.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 30
-Section 15
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=123409700&loc=d3e13503-111538

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(2)
-URI http://asc.fasb.org/extlink&oid=121614798&loc=d3e15032-111544

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- Definition

Amount of accretion recognized for the excess of a loan's cash flows expected to be collected over the investor's initial investment in acquired loans not accounted for as debt securities, with evidence of deterioration of credit quality.

+ References

+ Details

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

+ Details

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