DISTRIBUTION AGREEMENTS (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2019	Mar. 31, 2018
DISTRIBUTION AGREEMENTS
Termination costs	$ 10,700	$ 7,000
Distribution agreement (in years)	20 years
Revenue recognized	$ 14,200	$ 11,200
Kalil Bottling Groups
DISTRIBUTION AGREEMENTS
Termination costs	0
Revenue recognized	$ 0

Amount of revenue recognized for distribution agreements that was previously reported as deferred.

No definition available.

Name:	mnst_DeferredRevenueDistributionAgreement
Namespace Prefix:	mnst_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Represents the anticipated life of distribution agreements over which amounts received are recognized as revenue ratably over the period.

+ References

No definition available.

+ Details

Name:	mnst_DistributionAgreementRevenueRecognitionPeriod
Namespace Prefix:	mnst_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- 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:	mnst_ScheduleOfDistributionAgreementsLineItems
Namespace Prefix:	mnst_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Gain (loss) related to the termination of a contract between the parties. The termination may be due to many causes including early termination of a lease by a lessee, a breach of contract by one party, or a failure to perform.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)(1)
-URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585

+ Details

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

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=mnst_KalilBottlingGroupsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: