Restructuring and Other Charges (Changes in Restructuring Liability) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Jan. 02, 2016
Restructuring Reserve [Roll Forward]
Accruals, net	$ 11,954	$ 12,576
Restructuring reserve, ending balance	20,932
Employee Separation Costs [Member]
Restructuring Reserve [Roll Forward]
Accruals, net	5,149	2,608
Restructuring reserve, ending balance	3,091
Lease Termination [Member]
Restructuring Reserve [Roll Forward]
Accruals, net	355	479
Restructuring reserve, ending balance	0
Pension Withdrawal Liabilities [Member]
Restructuring Reserve [Roll Forward]
Accruals, net	813	4,981
Restructuring reserve, ending balance	17,482
Building Clean-up, Equipment Moving and Other Expenses [Member]
Restructuring Reserve [Roll Forward]
Accruals, net	2,031	2,208
Restructuring reserve, ending balance	359
2017 Plan [Member]
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance	0
Accruals, net	2,000
Payments	0
Restructuring reserve, ending balance	2,000	0
2017 Plan [Member] | Employee Separation Costs [Member]
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance	0
Accruals, net	2,000
Payments	0
Restructuring reserve, ending balance	2,000	0
2017 Plan [Member] | Lease Termination [Member]
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance	0
Accruals, net	0
Payments	0
Restructuring reserve, ending balance	0	0
2017 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	0
2017 Plan [Member] | Building Clean-up, Equipment Moving and Other Expenses [Member]
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance	0
Accruals, net	0
Payments	0
Restructuring reserve, ending balance	0	0
2016 Plan [Member]
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance	0
Accruals, net	2,825
Payments	(1,981)
Restructuring reserve, ending balance	844	0
2016 Plan [Member] | Employee Separation Costs [Member]
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance	0
Accruals, net	2,553
Payments	(1,709)
Restructuring reserve, ending balance	844	0
2016 Plan [Member] | Lease Termination [Member]
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance	0
Accruals, net	35
Payments	(35)
Restructuring reserve, ending balance	0	0
2016 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	0
2016 Plan [Member] | Building Clean-up, Equipment Moving and Other Expenses [Member]
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance	0
Accruals, net	237
Payments	(237)
Restructuring reserve, ending balance	0	0
2015 Plan [Member]
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance	276	0
Accruals, net	2,370	2,629
Payments	(2,040)	(2,353)
Restructuring reserve, ending balance	606	276
2015 Plan [Member] | Employee Separation Costs [Member]
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance	276	0
Accruals, net	595	2,119
Payments	(624)	(1,843)
Restructuring reserve, ending balance	247	276
2015 Plan [Member] | Lease Termination [Member]
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance	0	0
Accruals, net	162	0
Payments	(162)	0
Restructuring reserve, ending balance	0	0
2015 Plan [Member] | Pension Withdrawal Liabilities [Member]
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance	0	0
Accruals, net	0	0
Payments	0	0
Restructuring reserve, ending balance	0	0
2015 Plan [Member] | Building Clean-up, Equipment Moving and Other Expenses [Member]
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance	0	0
Accruals, net	1,613	510
Payments	(1,254)	(510)
Restructuring reserve, ending balance	359	0
Residual Plans [Member]
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance	20,256	20,937
Accruals, net	1,041	6,885
Payments	(3,815)	(7,566)
Restructuring reserve, ending balance	17,482	20,256
Residual Plans [Member] | Employee Separation Costs [Member]
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance	3	1,560
Accruals, net	1	444
Payments	(4)	(2,001)
Restructuring reserve, ending balance	0	3
Residual Plans [Member] | Lease Termination [Member]
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance	411	677
Accruals, net	113	141
Payments	(524)	(407)
Restructuring reserve, ending balance	0	411
Residual Plans [Member] | Pension Withdrawal Liabilities [Member]
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance	19,842	18,700
Accruals, net	813	4,981
Payments	(3,173)	(3,839)
Restructuring reserve, ending balance	17,482	19,842
Residual Plans [Member] | Building Clean-up, Equipment Moving and Other Expenses [Member]
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance	0	0
Accruals, net	114	1,319
Payments	(114)	(1,319)
Restructuring reserve, ending balance	0	0
Acquisition Integration Plans [Member]
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance	392	1,213
Accruals, net	470	986
Payments	(862)	(1,807)
Restructuring reserve, ending balance	0	392
Acquisition Integration Plans [Member] | Employee Separation Costs [Member]
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance	0	77
Accruals, net	0	45
Payments	0	(122)
Restructuring reserve, ending balance	0	0
Acquisition Integration Plans [Member] | Lease Termination [Member]
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance	392	1,136
Accruals, net	45	338
Payments	(437)	(1,082)
Restructuring reserve, ending balance	0	392
Acquisition Integration Plans [Member] | Pension Withdrawal Liabilities [Member]
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance	0	0
Accruals, net	0	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	425	603
Payments	(425)	(603)
Restructuring reserve, ending balance	$ 0	$ 0