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Condensed Financial Information of The Registrant - Additional Information (Detail) (USD $)
In Millions, except Per Share data, unless otherwise specified
 12 Months Ended
Dec. 28, 2014
Dec. 29, 2013
Dec. 30, 2012
Condensed Financial Statements, Captions [Line Items]      
Special cash dividend per share     $ 3.00us-gaap_DividendsPayableAmountPerShare
Parent Company [Member]      
Condensed Financial Statements, Captions [Line Items]      
Special cash dividend per share     $ 3.00us-gaap_DividendsPayableAmountPerShare
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
Non-cash activities related to stock-based compensation plans $ 42.3dpz_AllocatedNonCashShareBasedCompensationExpense
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember		 $ 32.3dpz_AllocatedNonCashShareBasedCompensationExpense
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember		 $ 21.7dpz_AllocatedNonCashShareBasedCompensationExpense
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
Non-cash activities related to payment by a subsidiary     $ 13.5dpz_SupplementalNonCashInvestingActivities
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember