Quarterly report pursuant to Section 13 or 15(d)

Income Taxes (Details)

v2.4.1.9
Income Taxes (Details) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended 6 Months Ended 12 Months Ended
Mar. 28, 2015
Mar. 29, 2014
Mar. 28, 2015
Mar. 29, 2014
Sep. 27, 2014
Oct. 03, 2015
Income Tax Contingency [Line Items]            
Effective income tax rate (percent)     151.80%us-gaap_EffectiveIncomeTaxRateContinuingOperations 14.30%us-gaap_EffectiveIncomeTaxRateContinuingOperations 87.10%us-gaap_EffectiveIncomeTaxRateContinuingOperations  
Effective income tax rate, excluding gain on sale of business, percentage     14.50%dla_EffectiveIncomeTaxRateExcludingGainonSaleofBusinessPercentage      
Gain on sale of asset $ 7,704us-gaap_GainLossOnSaleOfBusiness $ 0us-gaap_GainLossOnSaleOfBusiness $ 7,704us-gaap_GainLossOnSaleOfBusiness $ 0us-gaap_GainLossOnSaleOfBusiness    
Forecast [Member]            
Income Tax Contingency [Line Items]            
Effective income tax rate (percent)           24.00%us-gaap_EffectiveIncomeTaxRateContinuingOperations
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioForecastMember
The Game [Member]            
Income Tax Contingency [Line Items]            
Gain on sale of asset $ 5,600us-gaap_GainLossOnSaleOfBusiness
/ us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis
= dla_TheGameMember 		  $ 7,704us-gaap_GainLossOnSaleOfBusiness
/ us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis
= dla_TheGameMember