Represents the percentage of gross profit in four one , to be used to calculate contingent consideration payments.

No definition available.

Name:	deck_BusinessAcquisitionPurchasePriceAdditionalParticipationPaymentYearFourPercentageOfGrossProfit
Namespace Prefix:	deck_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Business Acquisition Purchase Price, Additional Participation Payment Year Three, Terms

+ References

No definition available.

+ Details

Name:	deck_BusinessAcquisitionPurchasePriceAdditionalParticipationPaymentYearThreeTerms
Namespace Prefix:	deck_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Business Combination, Contingent Consideration Arrangements, Amount Paid

+ References

No definition available.

+ Details

Name:	deck_BusinessCombinationContingentConsiderationArrangementsAmountPaid
Namespace Prefix:	deck_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

Name:	deck_ContingenciesLineItems
Namespace Prefix:	deck_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the period of indemnity to licensees, distributors and promotional partners in connection with the claims related to use of the company's intellectual property (in years).

+ References

No definition available.

+ Details

Name:	deck_MaximumIndemnityPeriodofClaimsRelatedtoIntellectualProperty
Namespace Prefix:	deck_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Estimated Future cash outflow to pay as contingent consideration arrangement for acquisition of business, measured at fair value using significant unobservable inputs (Level 3).

+ References

No definition available.

+ Details

Name:	deck_NoncashOrPartNoncashBusinessAcquisitionContingentConsideration
Namespace Prefix:	deck_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Represents the amount of contingent consideration for the acquisition included within long-term liabilities.

+ References

No definition available.

+ Details

Name:	deck_NoncashOrPartNoncashBusinessAcquisitionContingentConsiderationAmountIncludedInLongTermLiability
Namespace Prefix:	deck_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Represents the amount of contingent consideration for the acquisition included within other accrued expenses.

+ References

No definition available.

+ Details

Name:	deck_NoncashOrPartNoncashBusinessAcquisitionContingentConsiderationAmountIncludedInOtherAccruedExpenses
Namespace Prefix:	deck_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Represents the advance deposit paid or to be paid under the contractual agreement.

+ References

No definition available.

+ Details

Name:	deck_SignificantPurchaseCommitmentAdvanceDepositAmount
Namespace Prefix:	deck_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

For contingent consideration arrangements recognized in connection with a business combination, this element represents an estimate of the high-end of the potential range (undiscounted) of the consideration which may be paid.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 30

-Section 50

-Paragraph 1

-Subparagraph (c)(3)

-URI http://asc.fasb.org/extlink&oid=7488404&loc=d3e6927-128479

+ Details

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

- Definition

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

+ References

No definition available.

+ Details

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

- Definition

Amount of the recorded obligation to transfer funds in the future for fixed or minimum amounts or quantities of goods or services at fixed or minimum prices (for example, as in take-or-pay contracts or throughput contracts).

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 440

-SubTopic 10

-Section 50

-Paragraph 6

-URI http://asc.fasb.org/extlink&oid=6394976&loc=d3e25383-109308

+ Details

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

- Definition

Amount of the recorded unconditional purchase obligation maturing in the next fiscal year following the latest fiscal year.

+ References

+ Details

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

- Details

Name:	us-gaap_BusinessAcquisitionAxis=deck_HokaMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_BusinessAcquisitionAxis=deck_SanukMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_PurchaseCommitmentExcludingLongtermCommitmentAxis=us-gaap_PurchaseCommitmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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Namespace Prefix:
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Period Type:

Commitments and Contingencies - Additional Information (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	12 Months Ended
	Mar. 31, 2014	Mar. 31, 2015	Dec. 31, 2013	Dec. 31, 2012	Sep. 30, 2012
Commitments and Contingencies
Future commitments under purchase orders and other agreements in next year		$ 664,429
Maximum indemnity period of claims for intellectual property (in years)		5 years
Business Acquisition Purchase Price, Additional Participation Payment Year Three, Terms		60 days
Contingent consideration	0	0	0	1,128
Maximum contingent consideration payments					2,000
Approximate amount paid		500			500
Long-term Purchase Commitment, Amount		8,000
Sanuk
Commitments and Contingencies
Contingent consideration	28,000	24,200	46,200
Contingent consideration included within other accrued expenses	0	24,200	18,600
Contingent consideration included within long-term liabilities	28,000	0	27,600
Sanuk \| Gross profit performance criteria
Commitments and Contingencies
Contingent consideration performance percentage applied to gross profit in 2015		40.00%
Hoka
Commitments and Contingencies
Contingent consideration	1,800	1,500	1,800
Maximum contingent consideration payments		2,000
Purchase commitment
Commitments and Contingencies
Advance deposits	11,000	14,000	67,000
Outstanding purchase orders with manufacturers
Commitments and Contingencies
Outstanding purchase orders with manufacturers		$ 664,659