Equity - Units Rollforward (Details) - shares		9 Months Ended
Jun. 30, 2025	Sep. 30, 2025
Increase (Decrease) in Partners' Capital [Roll Forward]
Beginning balance (in units)		51,485,896
Unit-based compensation awards (in units)		62,138
Unit repurchase (in units)		(243,075)
Ending balance (in units)		53,480,168
Units withheld for taxes (in units)		26,260
Delek US Holdings, Inc.
Increase (Decrease) in Partners' Capital [Roll Forward]
Delek's limited partner interest	63.30%
Gravity Water Holdings LLC
Increase (Decrease) in Partners' Capital [Roll Forward]
Issuance of units (in units)		2,175,209
Common- Public \| Limited Partner
Increase (Decrease) in Partners' Capital [Roll Forward]
Beginning balance (in units)		17,374,618
Unit-based compensation awards (in units)		62,138
Unit repurchase (in units)		0
Ending balance (in units)		19,611,965
Common- Public \| Limited Partner \| Gravity Water Holdings LLC
Increase (Decrease) in Partners' Capital [Roll Forward]
Issuance of units (in units)		2,175,209
Common- Delek \| Limited Partner
Increase (Decrease) in Partners' Capital [Roll Forward]
Beginning balance (in units)		34,111,278
Unit-based compensation awards (in units)		0
Unit repurchase (in units)		(243,075)
Ending balance (in units)		33,868,203
Common- Delek \| Limited Partner \| Gravity Water Holdings LLC
Increase (Decrease) in Partners' Capital [Roll Forward]
Issuance of units (in units)		0

Partners' Capital Account, Units Withheld For Taxes

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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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- Definition

Percentage investment held by members or limited partners of limited liability company (LLC) or limited partnership (LP).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 272
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482987/272-10-50-3

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- Definition

The number of each class of partnership units outstanding at the balance sheet date. Units represent shares of ownership of the general, limited, and preferred partners.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 5
-Subparagraph (SAB Topic 4.F)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480008/505-10-S99-5

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- Definition

Total units issued during the year due to the sale of units. All partners include general, limited and preferred partners.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480008/505-10-S99-1

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- Definition

Units that were previously issued and have been repurchased during the year.

+ References

+ Details

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- Definition

Number of units issued for unit-based payment arrangement issued by partnership. Partner includes, but is not limited to, general, limited and preferred partners.

+ References

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