Total amount of future payments due on contractual obligation.

No definition available.

Name:	mnst_ContractualObligation
Namespace Prefix:	mnst_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Amount of contractual obligation maturing in the fourth fiscal year following the latest fiscal year.

No definition available.

Name:	mnst_ContractualObligationDueInFourthYear
Namespace Prefix:	mnst_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Amount of contractual obligation maturing in the next fiscal year following the latest fiscal year.

No definition available.

Name:	mnst_ContractualObligationDueInNextTwelveMonths
Namespace Prefix:	mnst_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Amount of contractual obligation maturing in the second fiscal year following the latest fiscal year.

No definition available.

Name:	mnst_ContractualObligationDueInSecondYear
Namespace Prefix:	mnst_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Amount of contractual obligation maturing in the third fiscal year following the latest fiscal year.

No definition available.

Name:	mnst_ContractualObligationDueInThirdYear
Namespace Prefix:	mnst_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Name:	mnst_ContractualObligationFiscalYearMaturityAbstract
Namespace Prefix:	mnst_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Represents the value of purchases from suppliers of limited resources.

No definition available.

Name:	mnst_CostOfPurchasesOfDirectMaterialsFromSuppliersOfLimitedResources
Namespace Prefix:	mnst_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Represents the period over which contractual obligations of the entity will be paid.

No definition available.

Name:	mnst_PeriodOfContractualObligations
Namespace Prefix:	mnst_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

The minimum amount the entity agreed to spend under the long-term purchase commitment.

No definition available.

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

COMMITMENTS AND CONTINGENCIES (Details 2) (USD $)	12 Months Ended
COMMITMENTS AND CONTINGENCIES (Details 2) (USD $)	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Contractual obligations related primarily to sponsorships and other commitments
Value of purchases from suppliers of limited resources	$ 279,500,000	$ 186,400,000	$ 168,600,000
Contractual obligations
Contractual obligations related primarily to sponsorships and other commitments
2012	48,716,000
2013	24,737,000
2014	14,513,000
2015	7,116,000
Total	95,082,000
Raw material items
Contractual obligations related primarily to sponsorships and other commitments
Purchase Commitments	44,200,000
Period over which contractual obligations will be paid (in years)	1
Office building, including the real property
Contractual obligations related primarily to sponsorships and other commitments
Purchase Commitments	$ 8,200,000