Share-Based Awards, Purchase Plans and Compensation Cost (Tables)

12 Months Ended

Dec. 26, 2014

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Share Based Awards - Option shares activity

			Weighted			Weighted
			Average			Average
		Option	Exercise		Options	Exercise
		Shares	Price		Exercisable	Price
Outstanding, December 30, 2011		5,478	$	32.12	3,211	$	32.27
	Granted	566		50.33
	Exercised	(805)		27.14
	Canceled	(47)		35.24
Outstanding, December 28, 2012		5,192		34.85	3,194		32.99
	Granted	969		65.97
	Exercised	(990)		33.04
	Canceled	(22)		40.71
Outstanding, December 27, 2013		5,149		41.03	3,311		33.20
	Granted	475		74.62
	Exercised	(607)		35.73
	Canceled	(42)		61.35
Outstanding, December 26, 2014		4,975	$	44.72	3,318	$	34.86

Options outstanding and exercisable

			Options
			Outstanding
			Weighted Avg.	Options			Options
			Remaining	Outstanding			Exercisable
Range of	Options	Contractual Term		Weighted Avg.		Options	Weighted Avg.
Prices	Outstanding		in Years	Exercise Price		Exercisable	Exercise Price
$ 16-30	1,352		4	$	23.60	1,352	$	23.60
$ 30-45	1,585		4		39.31	1,458		39.01
$ 45-60	1,177		7		53.99	491		52.24
$ 60-76	861		9		75.19	17		74.89
$ 16-76	4,975		6	$	44.72	3,318	$	34.86

Options exercised

	2014		2013		2012
Cash received	$	20,343	$	33,630	$	21,687
Aggregate intrinsic value		25,284		33,028		18,195
Tax benefit realized		8,200		11,200		6,200

Authorized shares

		Available for Future
	Total Shares	Issuance as of
	Authorized	December 26, 2014
Stock Incentive Plan (2010)	5,100	2,031
Employee Stock Purchase Plan (2006)	7,000	5,094
Total	12,100	7,125

Stock Options - Valuation assumptions

	2014			2013			2012
Expected life in years		6.5			5.9			6.5
Interest rate		2.0	%		1.3	%		1.3	%
Volatility		36.1	%		35.4	%		36.6	%
Dividend yield		1.5	%		1.6	%		1.8	%
Weighted average fair value per share	$	24.83		$	19.44		$	15.60

Employee Stock Purchase Plan - Valuation assumptions

	2014			2013			2012
Expected life in years		1.0			1.0			1.0
Interest rate		0.1	%		0.2	%		0.2	%
Volatility		21.4	%		26.0	%		40.6	%
Dividend yield		1.4	%		1.7	%		1.7	%
Weighted average fair value per share	$	17.81		$	14.16		$	15.58