DISTRIBUTION AGREEMENTS (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
DISTRIBUTION AGREEMENTS
Distribution agreement (in years)			20 years
Revenue recognized	$ 10.4	$ 10.5	$ 31.3	$ 31.6

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

No definition available.

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