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CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (Parenthetical) (USD $)	12 Months Ended
	Dec. 29, 2012	Dec. 31, 2011	Jan. 01, 2011
COMMON STOCK OUTSTANDING [Member]
Common stock issued under stock incentive plans, net of forfeitures, shares	1,496,214	1,043,019	1,212,463
ADDITIONAL PAID-IN CAPITAL [Member]
Issuance of performance-based shares, shares	197,304	206,148	215,027
Issuance of treasury shares, shares	20,766	24,354	25,829
RETAINED EARNINGS [Member]
Cash dividends declared per share	$ 0.48	$ 0.48	$ 0.44
COST OF SHARES IN TREASURY [Member]
Common stock acquired for treasury, shares	354,411	1,895,893	1,832,193
Issuance of treasury shares, shares	20,766	24,354	25,829

Number of shares (or other type of equity) issued during the period as a result of any equity-based compensation plan other than an employee stock ownership plan (ESOP), net of any shares forfeited. Shares issued could result from the issuance of restricted stock, the exercise of stock options, stock issued under employee stock purchase plans, and/or other employee benefit plans.

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