Tax Credit Impairment Adjustment

No definition available.

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- Definition

Amount of investment that generates income tax credit and other income tax benefit under tax credit program elected to be accounted for using proportional amortization method. Includes, but is not limited to, investment under program not meeting condition for accounting under proportional amortization method.

+ References

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- Definition

Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards.

+ References

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- Definition

Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.

+ References

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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

Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

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- Definition

Amount of commitment and contingent commitment, including amount of delayed equity contribution, for investment that generates income tax credit and other income tax benefit under tax credit program elected to be accounted for using proportional amortization method. Includes, but is not limited to, commitment and contingent commitment related to investment under tax credit program not meeting condition for accounting under proportional amortization method.

+ References

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- Definition

Amount accrued for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return.

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- Definition

The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate.

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Income Taxes (Narrative) (Details) - USD ($)	Dec. 31, 2024	Dec. 31, 2023	Feb. 28, 2023	Dec. 31, 2022
Income Tax Contingency [Line Items]
Valuation allowance	$ 0
Deferred tax assets, gross	660,900,000	$ 693,600,000
Unrecognized tax benefits	0
Unrecognized Tax Benefits Related to Interest and Penalties	0
Affordable housing tax credit investments	220,954,000	210,873,000
Unfunded affordable housing tax credit commitments	95,280,000	114,082,000
Tax Credit Impairment Adjustment	0	0		$ 0
Umpqua Bank and Columbia Banking System Merger
Income Tax Contingency [Line Items]
Affordable housing tax credit investments			$ 47,200,000
Unfunded affordable housing tax credit commitments			$ 40,900,000
State and Local Jurisdiction
Income Tax Contingency [Line Items]
Operating Loss Carryforwards	$ 1,900,000	$ 2,400,000