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Business Segments, Concentration of Business, and Credit Risk and Significant Customers - 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
Dec. 31, 2011
Cash and cash equivalents          
Money market fund accounts 143,816us-gaap_MoneyMarketFundsAtCarryingValue 127,900us-gaap_MoneyMarketFundsAtCarryingValue 154,105us-gaap_MoneyMarketFundsAtCarryingValue    
Cash 101,272us-gaap_Cash 97,243us-gaap_Cash 83,020us-gaap_Cash    
Total cash and cash equivalents 245,088us-gaap_CashAndCashEquivalentsAtCarryingValue 225,143us-gaap_CashAndCashEquivalentsAtCarryingValue 237,125us-gaap_CashAndCashEquivalentsAtCarryingValue 110,247us-gaap_CashAndCashEquivalentsAtCarryingValue 263,606us-gaap_CashAndCashEquivalentsAtCarryingValue
Long-lived assets, which consist of property and equipment, by major country          
Property and equipment, by major country 184,570us-gaap_PropertyPlantAndEquipmentNet 232,317us-gaap_PropertyPlantAndEquipmentNet 174,066us-gaap_PropertyPlantAndEquipmentNet    
Concentration risks          
Number of tanneries used to source products   2deck_NumberOfTanneries      
International Net Sales          
Concentration risks          
Concentration risk (as a percent) 32.70%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= deck_InternationalSalesRevenueGoodsNetMember
35.90%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= deck_InternationalSalesRevenueGoodsNetMember
33.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= deck_InternationalSalesRevenueGoodsNetMember
31.20%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= deck_InternationalSalesRevenueGoodsNetMember
 
Net Trade Accounts Receivable | Customer One          
Concentration risks          
Number of customers considered concentration risk 1deck_NumberOfCustomersConsideredConcentrationRisk
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_AccountsReceivableMember
/ us-gaap_ConcentrationRiskByTypeAxis
= deck_UnidentifiedMajorCustomerOneMember
1deck_NumberOfCustomersConsideredConcentrationRisk
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_AccountsReceivableMember
/ us-gaap_ConcentrationRiskByTypeAxis
= deck_UnidentifiedMajorCustomerOneMember
1deck_NumberOfCustomersConsideredConcentrationRisk
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_AccountsReceivableMember
/ us-gaap_ConcentrationRiskByTypeAxis
= deck_UnidentifiedMajorCustomerOneMember
   
Concentration risk (as a percent) 11.80%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_AccountsReceivableMember
/ us-gaap_ConcentrationRiskByTypeAxis
= deck_UnidentifiedMajorCustomerOneMember
11.80%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_AccountsReceivableMember
/ us-gaap_ConcentrationRiskByTypeAxis
= deck_UnidentifiedMajorCustomerOneMember
11.40%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_AccountsReceivableMember
/ us-gaap_ConcentrationRiskByTypeAxis
= deck_UnidentifiedMajorCustomerOneMember
   
Net Trade Accounts Receivable | Customer Two          
Concentration risks          
Concentration risk (as a percent) 11.40%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_AccountsReceivableMember
/ us-gaap_ConcentrationRiskByTypeAxis
= deck_UnidentifiedMajorCustomerTwoMember
11.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_AccountsReceivableMember
/ us-gaap_ConcentrationRiskByTypeAxis
= deck_UnidentifiedMajorCustomerTwoMember
19.70%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_AccountsReceivableMember
/ us-gaap_ConcentrationRiskByTypeAxis
= deck_UnidentifiedMajorCustomerTwoMember
   
US | Long-lived assets          
Long-lived assets, which consist of property and equipment, by major country          
Property and equipment, by major country 148,178us-gaap_PropertyPlantAndEquipmentNet
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_AssetsTotalMember
/ deck_CountryAxis
= country_US
196,513us-gaap_PropertyPlantAndEquipmentNet
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_AssetsTotalMember
/ deck_CountryAxis
= country_US
136,726us-gaap_PropertyPlantAndEquipmentNet
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_AssetsTotalMember
/ deck_CountryAxis
= country_US
   
All other countries | Long-lived assets          
Long-lived assets, which consist of property and equipment, by major country          
Property and equipment, by major country 36,392us-gaap_PropertyPlantAndEquipmentNet
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_AssetsTotalMember
/ deck_CountryAxis
= deck_OtherCountriesMember
35,804us-gaap_PropertyPlantAndEquipmentNet
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_AssetsTotalMember
/ deck_CountryAxis
= deck_OtherCountriesMember
37,340us-gaap_PropertyPlantAndEquipmentNet
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_AssetsTotalMember
/ deck_CountryAxis
= deck_OtherCountriesMember