Condensed Financial Information Of The Registrant (Narrative) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
Jan. 01, 2012	Jan. 02, 2011	Jan. 03, 2010
Condensed Financial Information Of The Registrant [Abstract]
Non-cash activities primarily relate to stock-based compensation plans	$ 30.0	$ 14.9	$ 18.8

Non-cash activities primarily relate to stock-based compensation plans.

No definition available.

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Namespace Prefix:	dpz_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration