Debt Instrument, Covenant, Mandatory Prepayment, Quarterly Amortization Payments, Percent

No definition available.

Name:	celh_DebtInstrumentCovenantMandatoryPrepaymentQuarterlyAmortizationPaymentsPercent
Namespace Prefix:	celh_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Debt Instrument, Reduction To Basis Spread On Variable Rate

+ References

No definition available.

+ Details

Name:	celh_DebtInstrumentReductionToBasisSpreadOnVariableRate
Namespace Prefix:	celh_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-SubTopic 10
-Topic 210
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 942
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Subparagraph (b)(1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481139/470-20-50-4

+ Details

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

- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 835
-SubTopic 30
-Name Accounting Standards Codification
-Section 55
-Paragraph 8
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482949/835-30-55-8

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22)(a)(1))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 835
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482900/835-30-50-1

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 835
-SubTopic 30
-Name Accounting Standards Codification
-Section 45
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482925/835-30-45-2

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481139/470-20-50-6

+ Details

Name:	us-gaap_DebtInstrumentInterestRateEffectivePercentage
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
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_DebtInstrumentRedemptionLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount, before accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 835
-SubTopic 30
-Name Accounting Standards Codification
-Section 45
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482925/835-30-45-2

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 835
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482900/835-30-50-1

+ Details

Name:	us-gaap_DeferredFinanceCostsGross
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22)(b))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(19)(b))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

+ Details

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

- Definition

Amount of cash outflow for payment of an obligation from a lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480738/235-10-S50-1

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(f))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480678/235-10-S99-1

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 230
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 15
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-15

+ Details

Name:	us-gaap_RepaymentsOfLinesOfCredit
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Details

Name:	us-gaap_DebtInstrumentAxis=celh_TermLoanFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=us-gaap_LineOfCreditMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=us-gaap_SecuredDebtMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableRateAxis=celh_FederalFundsRateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableRateAxis=celh_BenchmarkRateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableRateAxis=celh_AlternateBaseRateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableRateAxis=us-gaap_SecuredOvernightFinancingRateSofrMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=us-gaap_RevolvingCreditFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=celh_RevolvingFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=us-gaap_LetterOfCreditMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

DEBT - Narrative (Details) - USD ($)			3 Months Ended	9 Months Ended
DEBT - Narrative (Details) - USD ($)	Oct. 02, 2025	Sep. 02, 2025	Sep. 30, 2025	Sep. 30, 2025	Sep. 30, 2024	Apr. 01, 2025
Debt Instrument, Redemption [Line Items]
Debt outstanding			$ 897,750,000	$ 897,750,000
Repayments of debt				$ 2,250,000	$ 0
Term Loan Facility \| Line of Credit
Debt Instrument, Redemption [Line Items]
Basis spread on variable rate (as a percent)		0.25%
Effective percentage of debt instrument (as a percent)			7.90%	7.90%
Quarterly amortization payments (as a percent)			0.25%	0.25%
Repayments of debt			$ 2,300,000	$ 2,300,000
Secured Debt \| Term Loan Facility \| Line of Credit
Debt Instrument, Redemption [Line Items]
Line of credit facility, maximum borrowing capacity						$ 900,000,000
Secured Debt \| Term Loan Facility \| Line of Credit \| Subsequent Event
Debt Instrument, Redemption [Line Items]
Reduction to basis spread on variable rate	0.75%
Secured Debt \| Term Loan Facility \| Line of Credit \| Federal Funds Rate
Debt Instrument, Redemption [Line Items]
Basis spread on variable rate (as a percent)				0.50%
Secured Debt \| Term Loan Facility \| Line of Credit \| Benchmark Rate
Debt Instrument, Redemption [Line Items]
Basis spread on variable rate (as a percent)				1.00%
Secured Debt \| Term Loan Facility \| Line of Credit \| Alternate Base Rate
Debt Instrument, Redemption [Line Items]
Basis spread on variable rate (as a percent)				2.25%
Secured Debt \| Term Loan Facility \| Line of Credit \| Secured Overnight Financing Rate (SOFR)
Debt Instrument, Redemption [Line Items]
Basis spread on variable rate (as a percent)				3.25%
Revolving Credit Facility \| Term Loan Facility \| Line of Credit
Debt Instrument, Redemption [Line Items]
Line of credit facility, maximum borrowing capacity						100,000,000
Debt outstanding			0	$ 0
Revolving Credit Facility \| Revolving Facility \| Line of Credit
Debt Instrument, Redemption [Line Items]
Unamortized debt issuance costs			2,400,000	$ 2,400,000
Revolving Credit Facility \| Revolving Facility \| Line of Credit \| Subsequent Event
Debt Instrument, Redemption [Line Items]
Reduction to basis spread on variable rate	0.75%
Revolving Credit Facility \| Revolving Facility \| Line of Credit \| Federal Funds Rate
Debt Instrument, Redemption [Line Items]
Basis spread on variable rate (as a percent)				0.50%
Revolving Credit Facility \| Revolving Facility \| Line of Credit \| Benchmark Rate
Debt Instrument, Redemption [Line Items]
Basis spread on variable rate (as a percent)				1.00%
Revolving Credit Facility \| Revolving Facility \| Line of Credit \| Alternate Base Rate
Debt Instrument, Redemption [Line Items]
Basis spread on variable rate (as a percent)				2.00%
Revolving Credit Facility \| Revolving Facility \| Line of Credit \| Secured Overnight Financing Rate (SOFR)
Debt Instrument, Redemption [Line Items]
Basis spread on variable rate (as a percent)				3.00%
Letter of Credit \| Term Loan Facility \| Line of Credit
Debt Instrument, Redemption [Line Items]
Line of credit facility, maximum borrowing capacity						$ 50,000,000
Letter of Credit \| Revolving Facility \| Line of Credit
Debt Instrument, Redemption [Line Items]
Debt outstanding			$ 0	$ 0