Restructuring and Other Charges (Changes in Restructuring Liability) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 28, 2013	Dec. 29, 2012	Dec. 31, 2011
Restructuring Reserve [Roll Forward]
Accruals, net	$ 13,100	$ 27,100	$ 17,812
Restructuring reserve, ending balance	25,450
Employee Separation Costs [Member]
Restructuring Reserve [Roll Forward]
Accruals, net	6,480	7,571	4,330
Restructuring reserve, ending balance	992
Lease Termination [Member]
Restructuring Reserve [Roll Forward]
Accruals, net	1,059	1,159	2,591
Restructuring reserve, ending balance	3,903
Pension Withdrawal Liabilities [Member]
Restructuring Reserve [Roll Forward]
Accruals, net	453	5,082	1,437
Restructuring reserve, ending balance	20,555
Building Clean-up, Equipment Moving and Other Expenses [Member]
Restructuring Reserve [Roll Forward]
Accruals, net	2,287	3,823	3,933
Restructuring reserve, ending balance	0
2013 Plan [Member]
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance	0
Accruals, net	6,867
Payments	(5,974)
Restructuring reserve, ending balance	893
2013 Plan [Member] | Employee Separation Costs [Member]
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance	0
Accruals, net	6,099
Payments	(5,262)
Restructuring reserve, ending balance	837
2013 Plan [Member] | Lease Termination [Member]
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance	0
Accruals, net	392
Payments	(336)
Restructuring reserve, ending balance	56
2013 Plan [Member] | Pension Withdrawal Liabilities [Member]
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance	0
Accruals, net	0
Payments	0
Restructuring reserve, ending balance	0
2013 Plan [Member] | Building Clean-up, Equipment Moving and Other Expenses [Member]
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance	0
Accruals, net	376
Payments	(376)
Restructuring reserve, ending balance	0
2012 Plan [Member]
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance	7,092	0
Accruals, net	1,241	13,979
Payments	(2,606)	(6,887)
Restructuring reserve, ending balance	5,727	7,092
2012 Plan [Member] | Employee Separation Costs [Member]
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance	1,199	0
Accruals, net	(86)	5,658
Payments	(1,113)	(4,459)
Restructuring reserve, ending balance	0	1,199
2012 Plan [Member] | Lease Termination [Member]
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance	493	0
Accruals, net	311	656
Payments	(477)	(163)
Restructuring reserve, ending balance	327	493
2012 Plan [Member] | Pension Withdrawal Liabilities [Member]
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance	5,400	0
Accruals, net	0	5,400
Payments	0	0
Restructuring reserve, ending balance	5,400	5,400
2012 Plan [Member] | Building Clean-up, Equipment Moving and Other Expenses [Member]
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance	0	0
Accruals, net	1,016	2,265
Payments	(1,016)	(2,265)
Restructuring reserve, ending balance	0	0
Residual Plans [Member]
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance	21,663	27,413
Accruals, net	1,195	2,436
Payments	(6,686)	(8,186)
Restructuring reserve, ending balance	16,172	21,663
Residual Plans [Member] | Employee Separation Costs [Member]
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance	127	1,071
Accruals, net	19	884
Payments	(146)	(1,828)
Restructuring reserve, ending balance	0	127
Residual Plans [Member] | Lease Termination [Member]
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance	2,017	3,804
Accruals, net	319	331
Payments	(1,319)	(2,118)
Restructuring reserve, ending balance	1,017	2,017
Residual Plans [Member] | Pension Withdrawal Liabilities [Member]
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance	19,519	22,538
Accruals, net	453	(318)
Payments	(4,817)	(2,701)
Restructuring reserve, ending balance	15,155	19,519
Residual Plans [Member] | Building Clean-up, Equipment Moving and Other Expenses [Member]
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance	0	0
Accruals, net	404	1,539
Payments	(404)	(1,539)
Restructuring reserve, ending balance	0	0
Acquisition Integration Plans [Member]
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance	1,386	1,838
Accruals, net	2,502	2,290
Acquisition	1,985
Payments	(3,215)	(2,742)
Restructuring reserve, ending balance	2,658	1,386
Acquisition Integration Plans [Member] | Employee Separation Costs [Member]
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance	298	492
Accruals, net	448	1,029
Acquisition	0
Payments	(591)	(1,223)
Restructuring reserve, ending balance	155	298
Acquisition Integration Plans [Member] | Lease Termination [Member]
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance	1,088	1,346
Accruals, net	37	172
Acquisition	1,985
Payments	(607)	(430)
Restructuring reserve, ending balance	2,503	1,088
Acquisition Integration Plans [Member] | Pension Withdrawal Liabilities [Member]
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance	0	0
Accruals, net	0	0
Acquisition	0
Payments	0	0
Restructuring reserve, ending balance	0	0
Acquisition Integration Plans [Member] | Building Clean-up, Equipment Moving and Other Expenses [Member]
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance	0	0
Accruals, net	2,017	1,089
Acquisition	0
Payments	(2,017)	(1,089)
Restructuring reserve, ending balance	$ 0	$ 0