Effective Tax Rate as a Percentage of pre-tax Income (loss)

No definition available.

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- Definition

Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, without jurisdictional netting.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482685/740-10-50-2

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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.

+ Details

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- Definition

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482685/740-10-50-3

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Income Taxes (Details) - USD ($) $ in Millions	6 Months Ended	9 Months Ended
Income Taxes (Details) - USD ($) $ in Millions	Jun. 30, 2023	Sep. 30, 2022	Feb. 28, 2023
Income Tax Contingency [Line Items]
Deferred Tax Assets, Net	$ 362.9
Effective Tax Rate as a Percentage of pre-tax Income (loss)	25.50%	25.10%
Umpqua Bank and Columbia Banking System Merger
Income Tax Contingency [Line Items]
Deferred Tax Assets, Net			$ 254.9
State and Local Jurisdiction
Income Tax Contingency [Line Items]
Operating Loss Carryforwards	$ 2.7