Schedule H, Line 4i – Schedule of Assets (Held at End of Year) (Details) - EBP 006	12 Months Ended
Dec. 31, 2025 USD ($) shares
EBP, Schedule of Asset Held for Investment [Line Items]
Entity tax identification number	87-0189025
Plan number	006
Investments, current value	$ 2,053,982,162
Notes receivable from participants	$ 26,179,163
Minimum
EBP, Schedule of Asset Held for Investment [Line Items]
EBP, Asset Held for Investment, Participant Loan, Interest Rate	4.25%
Maximum
EBP, Schedule of Asset Held for Investment [Line Items]
EBP, Asset Held for Investment, Participant Loan, Interest Rate	9.50%
Investment, Identifier [Axis]: Common collective trusts \| FIDELITY INVESTMENTS
EBP, Schedule of Asset Held for Investment [Line Items]
Investments, current value	$ 63,537,533
Investment, Identifier [Axis]: Common collective trusts \| FIDELITY INVESTMENTS \| MANAGED INCOME PORTFOLIO II CL 2 (346 units)
EBP, Schedule of Asset Held for Investment [Line Items]
Investment, at fair value (in shares) \| shares	346
Investments, current value	$ 346
Investment, Identifier [Axis]: Common collective trusts \| FIDELITY INVESTMENTS \| MANAGED INCOME PORTFOLIO II CL 4 (63,537,187 units)
EBP, Schedule of Asset Held for Investment [Line Items]
Investment, at fair value (in shares) \| shares	63,537,187
Investments, current value	$ 63,537,187
Investment, Identifier [Axis]: Common collective trusts \| Lifecycle and Other
EBP, Schedule of Asset Held for Investment [Line Items]
Investments, current value	$ 943,894,926
Investment, Identifier [Axis]: Common collective trusts \| Lifecycle and Other \| FIDELITY INVESTMENTS \| FIAM CORE PLUS CL J (2,170,833 shares)
EBP, Schedule of Asset Held for Investment [Line Items]
Investment, at fair value (in shares) \| shares	2,170,833
Investments, current value	$ 53,619,565
Investment, Identifier [Axis]: Common collective trusts \| Lifecycle and Other \| FIDELITY INVESTMENTS \| FID CONTRA POOL CL A (3,819,429 shares)
EBP, Schedule of Asset Held for Investment [Line Items]
Investment, at fair value (in shares) \| shares	3,819,429
Investments, current value	$ 212,589,415
Investment, Identifier [Axis]: Common collective trusts \| Lifecycle and Other \| JANUS HENDERSON \| ENTERPRISE III (4,086,389 shares)
EBP, Schedule of Asset Held for Investment [Line Items]
Investment, at fair value (in shares) \| shares	4,086,389
Investments, current value	$ 58,937,171
Investment, Identifier [Axis]: Common collective trusts \| Lifecycle and Other \| VANGUARD \| TARGET RETIREMENT 2020 (494,689 shares)
EBP, Schedule of Asset Held for Investment [Line Items]
Investment, at fair value (in shares) \| shares	494,689
Investments, current value	$ 26,030,545
Investment, Identifier [Axis]: Common collective trusts \| Lifecycle and Other \| VANGUARD \| TARGET RETIREMENT 2025 (800,397 shares)
EBP, Schedule of Asset Held for Investment [Line Items]
Investment, at fair value (in shares) \| shares	800,397
Investments, current value	$ 45,366,529
Investment, Identifier [Axis]: Common collective trusts \| Lifecycle and Other \| VANGUARD \| TARGET RETIREMENT 2030 (1,521,146 shares)
EBP, Schedule of Asset Held for Investment [Line Items]
Investment, at fair value (in shares) \| shares	1,521,146
Investments, current value	$ 90,371,282
Investment, Identifier [Axis]: Common collective trusts \| Lifecycle and Other \| VANGUARD \| TARGET RETIREMENT 2035 (1,309,682 shares)
EBP, Schedule of Asset Held for Investment [Line Items]
Investment, at fair value (in shares) \| shares	1,309,682
Investments, current value	$ 83,138,632
Investment, Identifier [Axis]: Common collective trusts \| Lifecycle and Other \| VANGUARD \| TARGET RETIREMENT 2040 (1,591,867 shares)
EBP, Schedule of Asset Held for Investment [Line Items]
Investment, at fair value (in shares) \| shares	1,591,867
Investments, current value	$ 109,456,756
Investment, Identifier [Axis]: Common collective trusts \| Lifecycle and Other \| VANGUARD \| TARGET RETIREMENT 2045 (1,297,558 shares)
EBP, Schedule of Asset Held for Investment [Line Items]
Investment, at fair value (in shares) \| shares	1,297,558
Investments, current value	$ 94,111,850
Investment, Identifier [Axis]: Common collective trusts \| Lifecycle and Other \| VANGUARD \| TARGET RETIREMENT 2050 (1,163,711 shares)
EBP, Schedule of Asset Held for Investment [Line Items]
Investment, at fair value (in shares) \| shares	1,163,711
Investments, current value	$ 87,103,745
Investment, Identifier [Axis]: Common collective trusts \| Lifecycle and Other \| VANGUARD \| TARGET RETIREMENT 2055 (390,682 shares)
EBP, Schedule of Asset Held for Investment [Line Items]
Investment, at fair value (in shares) \| shares	390,682
Investments, current value	$ 39,169,805
Investment, Identifier [Axis]: Common collective trusts \| Lifecycle and Other \| VANGUARD \| TARGET RETIREMENT 2060 (303,048 shares)
EBP, Schedule of Asset Held for Investment [Line Items]
Investment, at fair value (in shares) \| shares	303,048
Investments, current value	$ 23,983,214
Investment, Identifier [Axis]: Common collective trusts \| Lifecycle and Other \| VANGUARD \| TARGET RETIREMENT 2065 (202,054 shares)
EBP, Schedule of Asset Held for Investment [Line Items]
Investment, at fair value (in shares) \| shares	202,054
Investments, current value	$ 9,844,052
Investment, Identifier [Axis]: Common collective trusts \| Lifecycle and Other \| VANGUARD \| TARGET RETIREMENT INC (203,001 shares)
EBP, Schedule of Asset Held for Investment [Line Items]
Investment, at fair value (in shares) \| shares	203,001
Investments, current value	$ 10,172,365
Investment, Identifier [Axis]: Registered investment companies \| Domestic
EBP, Schedule of Asset Held for Investment [Line Items]
Investments, current value	$ 590,192,370
Investment, Identifier [Axis]: Registered investment companies \| Domestic \| ALLSPRING \| SPECIAL SMALL CAP VALUE IS (378,145 shares)
EBP, Schedule of Asset Held for Investment [Line Items]
Investment, at fair value (in shares) \| shares	378,145
Investments, current value	$ 13,688,852
Investment, Identifier [Axis]: Registered investment companies \| Domestic \| AMERICAN BEACON \| LG CAP VAL R6 (1,707,207 shares)
EBP, Schedule of Asset Held for Investment [Line Items]
Investment, at fair value (in shares) \| shares	1,707,207
Investments, current value	$ 45,958,021
Investment, Identifier [Axis]: Registered investment companies \| Domestic \| FIDELITY INVESTMENTS \| 500 INDEX INSTITUTIONAL (1,083,854 shares)
EBP, Schedule of Asset Held for Investment [Line Items]
Investment, at fair value (in shares) \| shares	1,083,854
Investments, current value	$ 257,653,684
Investment, Identifier [Axis]: Registered investment companies \| Domestic \| FIDELITY INVESTMENTS \| BALANCED K (1,235,878 shares)
EBP, Schedule of Asset Held for Investment [Line Items]
Investment, at fair value (in shares) \| shares	1,235,878
Investments, current value	$ 39,721,112
Investment, Identifier [Axis]: Registered investment companies \| Domestic \| FIDELITY INVESTMENTS \| FIMM GOVT INST (65,401,367 shares)
EBP, Schedule of Asset Held for Investment [Line Items]
Investment, at fair value (in shares) \| shares	65,401,367
Investments, current value	$ 65,401,367
Investment, Identifier [Axis]: Registered investment companies \| Domestic \| FIDELITY INVESTMENTS \| SMALL CAP GR K6 (1,262,315 shares)
EBP, Schedule of Asset Held for Investment [Line Items]
Investment, at fair value (in shares) \| shares	1,262,315
Investments, current value	$ 24,387,921
Investment, Identifier [Axis]: Registered investment companies \| Domestic \| FIDELITY INVESTMENTS \| U.S. BOND INDEX (2,924,873 shares)
EBP, Schedule of Asset Held for Investment [Line Items]
Investment, at fair value (in shares) \| shares	2,924,873
Investments, current value	$ 30,886,663
Investment, Identifier [Axis]: Registered investment companies \| Domestic \| VANGUARD \| MID CAP INDEX INSTITUTIONAL (623,368 shares)
EBP, Schedule of Asset Held for Investment [Line Items]
Investment, at fair value (in shares) \| shares	623,368
Investments, current value	$ 49,482,984
Investment, Identifier [Axis]: Registered investment companies \| Domestic \| VANGUARD \| SELECTED VALUE (1,103,314 shares)
EBP, Schedule of Asset Held for Investment [Line Items]
Investment, at fair value (in shares) \| shares	1,103,314
Investments, current value	$ 29,259,880
Investment, Identifier [Axis]: Registered investment companies \| Domestic \| VANGUARD \| SMALL CAP INDEX INSTITUTIONAL (273,118 shares)
EBP, Schedule of Asset Held for Investment [Line Items]
Investment, at fair value (in shares) \| shares	273,118
Investments, current value	$ 33,751,886
Investment, Identifier [Axis]: Registered investment companies \| International
EBP, Schedule of Asset Held for Investment [Line Items]
Investments, current value	$ 89,457,712
Investment, Identifier [Axis]: Registered investment companies \| International \| AMERICAN FUNDS \| EUROPACIFIC GROWTH R6 (198,283 shares)
EBP, Schedule of Asset Held for Investment [Line Items]
Investment, at fair value (in shares) \| shares	198,283
Investments, current value	$ 12,011,958
Investment, Identifier [Axis]: Registered investment companies \| International \| DFA EMRG MKT CORE EQ \| DFA EMRG MKT CORE EQ (568,248 shares)
EBP, Schedule of Asset Held for Investment [Line Items]
Investment, at fair value (in shares) \| shares	568,248
Investments, current value	$ 16,524,663
Investment, Identifier [Axis]: Registered investment companies \| International \| FIDELITY INVESTMENTS \| INTERNATIONAL INDEX (1,001,992 shares)
EBP, Schedule of Asset Held for Investment [Line Items]
Investment, at fair value (in shares) \| shares	1,001,992
Investments, current value	$ 60,921,091
Investment, Identifier [Axis]: ZIONS BANCORPORATION, N.A. \| COMMON STOCK (6,265,968 shares)
EBP, Schedule of Asset Held for Investment [Line Items]
Investment, at fair value (in shares) \| shares	6,265,968
Investments, cost of assets	$ 248,652,300
Investments, current value	366,899,621
Common collective trusts
EBP, Schedule of Asset Held for Investment [Line Items]
Investments, current value	1,007,432,459
Registered investment companies
EBP, Schedule of Asset Held for Investment [Line Items]
Investments, current value	$ 679,650,082

The Tax Identification Number (TIN), also known as an Employer Identification Number (EIN), is a unique 9-digit value assigned by the IRS.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Exchange Act
-Number 240
-Section 12
-Subsection b-2

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- Definition

Current value of investment, excluding plan interest in master trust, in schedule of asset held for investment of employee stock purchase, saving, or similar plan (employee benefit plan (EBP)). Includes, but is not limited to, derivative, investment measured at net asset value per share as practical expedient, and insurance contract.

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- Definition

Amount, after deemed distribution, of participant loan in schedule of asset held for investment of employee stock purchase, saving, or similar plan (employee benefit plan (EBP)).

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- Definition

Cost of investment, excluding plan interest in master trust, held by employee stock purchase, saving, or similar plan (employee benefit plan (EBP)). Includes, but is not limited to, derivative, investment measured at net asset value per share as practical expedient, and insurance contract.

+ References

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- Definition

Number of shares or units of investment held by employee stock purchase, saving, or similar plan (employee benefit plan (EBP)).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 962
-SubTopic 205
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.6A-05(a)(Schedule I))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477804/962-205-S99-1

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Name Employee Retirement Income Security Act of 1974
-Number 2520
-Section 103
-Subsection 10
-Paragraph b
-Subparagraph (3)
-Publisher DOL-EBSA

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Name Employee Retirement Income Security Act of 1974
-Number 2520
-Section 103
-Subsection 10
-Paragraph b
-Subparagraph (4)
-Publisher DOL-EBSA

Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef
-Name Employee Retirement Income Security Act of 1974
-Number 2520
-Section 103
-Subsection 10
-Paragraph b
-Subparagraph (1)(i)(B)
-Publisher DOL-EBSA

Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef
-Name Employee Retirement Income Security Act of 1974
-Number 2520
-Section 103
-Subsection 10
-Paragraph b
-Subparagraph (2)(i)(B)
-Publisher DOL-EBSA

Reference 6: http://www.xbrl.org/2009/role/commonPracticeRef
-Name Employee Retirement Income Security Act of 1974
-Number 2520
-Section 103
-Subsection 6
-Paragraph d
-Subparagraph (1)(ii)
-Publisher DOL-EBSA

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Topic 962
-SubTopic 205
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.6A-02(b))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477804/962-205-S99-1

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- Definition

Interest rate on participant loan in schedule of asset held for investment of employee stock purchase, saving, or similar plan (employee benefit plan (EBP)).

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- Definition

Plan number of employee stock purchase, saving, or similar plan (employee benefit plan (EBP)), in three-digit numeric format.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 962
-SubTopic 205
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.6A-05(a)(Schedule I))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477804/962-205-S99-1

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 962
-SubTopic 205
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.6A-05(a)(Schedule II))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477804/962-205-S99-1

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Name Employee Retirement Income Security Act of 1974
-Number 2520
-Section 103
-Subsection 10
-Paragraph b
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-Publisher DOL-EBSA

Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef
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-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.6A-05(a)(Schedule III))
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-URI https://asc.fasb.org/1943274/2147477804/962-205-S99-1

Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef
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Reference 6: http://www.xbrl.org/2009/role/commonPracticeRef
-Name Employee Retirement Income Security Act of 1974
-Number 2520
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Reference 7: http://www.xbrl.org/2009/role/commonPracticeRef
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Reference 8: http://www.xbrl.org/2009/role/commonPracticeRef
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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

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name Employee Retirement Income Security Act of 1974
-Number 2520
-Section 103
-Subsection 10
-Paragraph b
-Subparagraph (1)(i)(D)
-Publisher DOL-EBSA

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 962
-SubTopic 205
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.6A-05(a)(Schedule I))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477804/962-205-S99-1

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Name Employee Retirement Income Security Act of 1974
-Number 2520
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Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef
-Name Employee Retirement Income Security Act of 1974
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Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef
-Name Employee Retirement Income Security Act of 1974
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