Stock Options, Other Stock Awards and Warrants (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 28, 2014	Dec. 29, 2013	Dec. 30, 2012
Stock Options, Other Stock Awards and Warrants [Abstract]
Number of shares of common stock reserved for issuance under stock incentive plans for employees and non-employee directors (in shares)	12,801
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock incentive plans, exercisable period after grant date, maximum	7
Compensation expense (income)	$ 36,152	$ 21,272	$ 19,434
Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock incentive plans, vesting period	3 years
Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock incentive plans, vesting period	5 years
Restricted Stock Units (RSUs) [Member]
Number of shares [Abstract]
Outstanding at beginning of year (in shares)	702	296	232
Granted (in shares)	281	451	92
Forfeited (in shares)	(39)	(44)	(27)
Vested (in shares)	(7)	(1)	(1)
Outstanding at end of year (in shares)	937	702	296
Weighted average grant-date fair value [Abstract]
Granted (in dollars per share)	$ 52.06	$ 45.16	$ 36.01
Forfeited (in dollars per share)	$ 44.44	$ 40.40	$ 40.80
Vested (in dollars per share)	$ 41.19	$ 33.62	$ 32.90
Outstanding at end of year (in dollars per share)	$ 45.74	$ 43.10	$ 39.53
Restricted Stock Units (RSUs) [Member] | Chief Executive Officer [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of tranches		2
Number of stated stock price hurdles		4
Percentage of award to be received upon each stock price hurdle		25.00%
Number of shares [Abstract]
Granted (in shares)	119	468
Total Shares Prescribed by Employment Agreement		587
Weighted average exercise price [Abstract]
Weighted average fair value of awards granted (in dollars per share)		$ 35.56
Weighted average assumptions used in determining the fair value of option grants [Abstract]
Share Price		$ 47.28
Stock price volatility (in hundredths)		26.12%
Risk-free interest rate (in hundredths)		0.65%
Expected dividend yield (in hundredths)		3.38%
Restricted Stock Units (RSUs) [Member] | Chief Executive Officer [Member] | Stock Price Hurdle One [Member]
Weighted average assumptions used in determining the fair value of option grants [Abstract]
Stock price hurdle (dollars)	$ 45
Restricted Stock Units (RSUs) [Member] | Chief Executive Officer [Member] | Stock Price Hurdle Two [Member]
Weighted average assumptions used in determining the fair value of option grants [Abstract]
Stock price hurdle (dollars)	$ 52
Restricted Stock Units (RSUs) [Member] | Chief Executive Officer [Member] | Stock Price Hurdle Three [Member]
Weighted average assumptions used in determining the fair value of option grants [Abstract]
Stock price hurdle (dollars)	$ 56
Restricted Stock Units (RSUs) [Member] | Chief Executive Officer [Member] | Stock Price Hurdle Four [Member]
Weighted average assumptions used in determining the fair value of option grants [Abstract]
Stock price hurdle (dollars)	$ 60
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expense (income)	15,643	8,732	2,328
Total unrecognized compensation cost	34,146
Weighted average period for recognition of total unrecognized compensation expense	29 months
Restricted Stock [Member] | Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock incentive plans, vesting period	3 years
Restricted Stock [Member] | Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock incentive plans, vesting period	5 years
Stock Performance Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expense (income)	11,315	815	3,628
Previously recognized compensation expense reversed during the period	0	7,046
Total unrecognized compensation cost	18,310
Weighted average period for recognition of total unrecognized compensation expense	20 months
Percentage of Target Number of Shares, Range Lower Limit (in hundredths)	0.00%
Percentage of Target Number of Shares, Range Upper Limit (in hundredths)	200.00%
Number of shares [Abstract]
Outstanding at beginning of year (in shares)	943	1,019	1,627
Granted (in shares)	322	358	695
Forfeited (in shares)	(32)	(101)	(144)
Cancelled (in shares)	(578)	(333)	(682)
Vested (in shares)	0	0	(477)
Outstanding at end of year (in shares)	655	943	1,019
Weighted average grant-date fair value [Abstract]
Granted (in dollars per share)	$ 52.11	$ 47.21	$ 36.14
Forfeited (in dollars per share)	$ 43.21	$ 40.24	$ 37.54
Cancelled (in dollars per share)	$ 36.14	$ 45.66	$ 33.76
Vested (in dollars per share)	$ 0	$ 0	$ 22.31
Outstanding at end of year (in dollars per share)	$ 49.57	$ 40.24	$ 39.57
Cash-settled Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expense (income)	(113)	1,316	1,348
Stock Awards Non Employee [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expense (income)	1,834	1,560	1,560
Number of deferred shares (in shares)	26	28	33
Stock options [Roll Forward]
Granted (in shares)	34	33	44
Employee Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total unrecognized compensation cost	6,599
Weighted average period for recognition of total unrecognized compensation expense	21 months
Stock options [Roll Forward]
Outstanding at beginning of year (in shares)	5,543	9,283	11,004
Granted (in shares)	684	776	1,730
Exercised (in shares)	(1,951)	(4,377)	(3,126)
Expired or forfeited (in shares)	(90)	(139)	(325)
Outstanding at end of year (in shares)	4,186	5,543	9,283
Exercisable at end of year (in shares)	2,374	3,144	6,094
Weighted average exercise price [Abstract]
Granted (in dollars per share)	$ 52.11	$ 47.21	$ 36.14
Exercised (in dollars per share)	$ 31.07	$ 26.99	$ 21.23
Expired or forfeited (in dollars per share)	$ 39.85	$ 39.59	$ 35.19
Outstanding at end of year (in dollars per share)	$ 41.68	$ 36.63	$ 31.25
Exercisable at end of year (in dollars per share)	$ 38.90	$ 33.22	$ 27.84
Outstanding at end of year, weighted average remaining contractual life	3 years 11 months 23 days
Exercisable at end of year, weighted average exercise price remaining contractual life	3 years 2 months 1 day
Outstanding at end of year, aggregate intrinsic value	57,627
Exercisable at end of year, aggregate intrinsic value	39,264
Weighted average fair value of awards granted (in dollars per share)	$ 8.40	$ 6.94	$ 6.29
Weighted average assumptions used in determining the fair value of option grants [Abstract]
Risk-free interest rate (in hundredths)	1.42%	0.62%	0.69%
Expected dividend yield (in hundredths)	3.30%	3.39%	3.99%
Expected volatility (in hundredths)	26.00%	26.00%	31.00%
Expected option life (in years)	5 years	5 years	5 years
Intrinsic values of options exercised	$ 44,890	$ 89,534	$ 49,225