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TREASURY STOCK PURCHASE (Details) (USD $) In Millions, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Jul. 04, 2013
TREASURY STOCK PURCHASE
Number of shares repurchased of common stock from employees in lieu of cash or withholding taxes due	2.2mnst_NumberOfSharesRepurchasedOfCommonStockForEmployeeTaxWithholdingObligations
Cash payment for repurchase of common stock from employees in lieu of cash or withholding taxes due	251.40us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation
April 2013 Repurchase Plan
TREASURY STOCK PURCHASE
Maximum amount of common stock the board of directors authorized to repurchase		$ 200.0us-gaap_StockRepurchaseProgramAuthorizedAmount1 / mnst_StockRepurchasesAxis = mnst_April2013RepurchasePlanMember
Common stock repurchased (in shares)	0us-gaap_TreasuryStockSharesAcquired / mnst_StockRepurchasesAxis = mnst_April2013RepurchasePlanMember

X

- Definition

Represents the number of shares repurchased of common stock to satisfy employee tax withholding obligations for stock issued as part of an employee benefit plan.

+ References

No definition available.

+ Details

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Namespace Prefix:	mnst_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- Details

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

X

- Definition

Amount of cash outflow to satisfy an employee's income tax withholding obligation as part of a net-share settlement of a share-based award.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 15

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3291-108585

+ Details

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

X

- Definition

Amount of stock repurchase plan authorized.

+ References

No definition available.

+ Details

Name:	us-gaap_StockRepurchaseProgramAuthorizedAmount1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Number of shares that have been repurchased during the period and are being held in treasury.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Article 3



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644



Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 29, 30

-Article 5

+ Details

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- Details

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