Property and Equipment: (Details) (USD $)	12 Months Ended
Jan. 03, 2012	Dec. 28, 2010	Dec. 29, 2009
Property and Equipment
Property and equipment, total	$ 1,323,730,000	$ 1,237,324,000
Less: accumulated depreciation	(565,227,000)	(481,856,000)
Property and equipment, net	758,503,000	755,468,000
Depreciation expenses	71,400,000	71,500,000	74,300,000
Repair and maintenance expenses	38,100,000	34,000,000	31,900,000
Land and related improvements
Property and Equipment
Property and equipment, total	13,410,000	13,410,000
Buildings
Property and Equipment
Property and equipment, total	17,692,000	17,692,000
Leasehold improvements
Property and Equipment
Property and equipment, total	889,049,000	832,144,000
Fixtures and equipment
Property and Equipment
Property and equipment, total	310,850,000	292,566,000
Computer software and equipment
Property and Equipment
Property and equipment, total	48,289,000	43,416,000
Restaurant smallware
Property and Equipment
Property and equipment, total	24,834,000	24,010,000
Construction in progress
Property and Equipment
Property and equipment, total	$ 19,606,000	$ 14,086,000

The cumulative amount of depreciation, depletion and amortization (related to property, plant and equipment, but not including land) that has been recognized in the income statement.

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The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

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- Definition

Gross amount, at the balance sheet date, of long-lived physical assets used in the normal conduct of business and not intended for resale. This can include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software.

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- Definition

Tangible assets that are held by an entity for use in the production or supply of goods and services, for rental to others, or for administrative purposes and that are expected to provide economic benefit for more than one year; net of accumulated depreciation. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software.

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