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Description of Business (Details)	Dec. 27, 2011 restaurant state country	Dec. 28, 2010 state restaurant
Description of Business
Number of restaurants	366	345
Number of states in which restaurants operates	47	46
Number of countries in which restaurants operates	1
Company-owned
Description of Business
Number of restaurants	294	274
Company-owned | Texas Roadhouse Holdings LLC
Description of Business
Number of restaurants	291	271
Company-owned | Aspen Creek, LLC
Description of Business
Number of restaurants	3	3
Company-owned | Wholly-owned
Description of Business
Number of restaurants	282	263
Company-owned | Majority-owned
Description of Business
Number of restaurants	12	11
Franchise
Description of Business
Number of restaurants	69	68
License
Description of Business
Number of restaurants	3	3
Franchised and/or licensed
Description of Business
Number of restaurants	72	71

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- Definition

The number of countries in which the entity operates as of balance sheet date.

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Represents the number of restaurants.

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- Definition

The number of states the entity operates in as of the balance sheet date.

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