Redeemable Noncontrolling Interest, Equity, Preferred, Distributions Paid-in-Kind

No definition available.

Name:	gel_RedeemableNoncontrollingInterestEquityPreferredDistributionsPaidinKind
Namespace Prefix:	gel_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Redeemable Noncontrolling Interest, Equity, Preferred, Redemption Accretion

+ References

No definition available.

+ Details

Name:	gel_RedeemableNoncontrollingInterestEquityPreferredRedemptionAccretion
Namespace Prefix:	gel_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Redeemable Noncontrolling Interest, Equity, Preferred, Tax Distribution

+ References

No definition available.

+ Details

Name:	gel_RedeemableNoncontrollingInterestEquityPreferredTaxDistribution
Namespace Prefix:	gel_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Redeemable Noncontrolling Interest, Equity, Preferred Units, Units issued

+ References

No definition available.

+ Details

Name:	gel_RedeemableNoncontrollingInterestEquityPreferredUnitsUnitsIssued
Namespace Prefix:	gel_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Redeemable Noncontrolling Interest, Equity, Preferred Units, Units issued To Pay Tax Distributions

+ References

No definition available.

+ Details

Name:	gel_RedeemableNoncontrollingInterestEquityPreferredUnitsUnitsIssuedToPayTaxDistributions
Namespace Prefix:	gel_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Redeemable Noncontrolling Interest, Equity, Preferred, Units issued value, net of issuance costs

+ References

No definition available.

+ Details

Name:	gel_RedeemableNoncontrollingInterestEquityPreferredUnitsissuedvaluenetofissuancecosts
Namespace Prefix:	gel_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Redeemable Noncontrolling Interest, Equity [Roll Forward]

+ References

No definition available.

+ Details

Name:	gel_RedeemableNoncontrollingInterestEquityRollForward
Namespace Prefix:	gel_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

As of the reporting date, the carrying amount of noncontrolling interests which are redeemable by the (parent) entity (1) at a fixed or determinable price on a fixed or determinable date, (2) at the option of the holder of the noncontrolling interest, or (3) upon occurrence of an event that is not solely within the control of the (parent) entity. The noncontrolling interest holder's ownership (or holders' ownership) may be in the form of preferred shares (regardless of class), preferred partnership units (regardless of class), preferential membership interests, or any other form of preferred equity regardless of investee entity legal form.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 480
-SubTopic 10
-Section S99
-Paragraph 3A
-Subparagraph 14
-URI http://asc.fasb.org/extlink&oid=122040564&loc=SL6540498-122764

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 480
-SubTopic 10
-Section S99
-Paragraph 3A
-Subparagraph (12)(c)
-URI http://asc.fasb.org/extlink&oid=122040564&loc=SL6540498-122764

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 480
-SubTopic 10
-Section S99
-Paragraph 3A
-Subparagraph 15
-URI http://asc.fasb.org/extlink&oid=122040564&loc=SL6540498-122764

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 480
-SubTopic 10
-Section S99
-Paragraph 3A
-Subparagraph (16)(c)
-URI http://asc.fasb.org/extlink&oid=122040564&loc=SL6540498-122764

+ Details

Name:	us-gaap_RedeemableNoncontrollingInterestEquityPreferredCarryingAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- 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

Name:	us-gaap_RedeemableNoncontrollingInterestLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	srt_ConsolidatedEntitiesAxis=srt_SubsidiariesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	dei_LegalEntityAxis=gel_GenesisAlkaliHoldingsCompanyLLCMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Partners' Capital, Mezzanine Capital and Distributions (Changes in Redeemable Noncontrolling Interests) (Details) - USD ($) $ in Thousands		3 Months Ended
	Apr. 14, 2020	Mar. 31, 2022	Mar. 31, 2021
Redeemable Noncontrolling Interest, Equity [Roll Forward]
Balance as of December 31, 2021		$ 259,568
Redeemable Noncontrolling Interest, Equity, Preferred, Units issued value, net of issuance costs		3,646
Redeemable Noncontrolling Interest, Equity, Preferred, Distributions Paid-in-Kind		6,596
Redemption accretion		1,227
Tax distributions		(3,795)
Balance as of March 31, 2022		267,242
Subsidiary \| Alkali Holdings
Redeemable Noncontrolling Interest, Equity [Roll Forward]
Redemption accretion		$ 1,200	$ 700
Redeemable Noncontrolling Interest [Line Items]
Equity preferred units issued to pay tax distributions (in units)		3,720
Equity preferred units issued (in units)	1,750