Restructuring and Other Charges (Changes in Restructuring Liability) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 02, 2016	Jun. 27, 2015	Jul. 02, 2016	Jun. 27, 2015
Restructuring Reserve [Roll Forward]
Restructuring and other charges	$ 880	$ 1,977	$ 5,870	$ 6,046
Restructuring Reserve	20,159		20,159
Employee Severance Costs [Member]
Restructuring Reserve [Roll Forward]
Restructuring and other charges	300	968	966	1,634
Restructuring Reserve	661		661
Lease Termination Expenses [Member]
Restructuring Reserve [Roll Forward]
Restructuring and other charges	118	44	158	355
Restructuring Reserve	0		0
Multi-Employer Pension Withdrawal Expenses [Member]
Restructuring Reserve [Roll Forward]
Restructuring and other charges	297	198	566	370
Restructuring Reserve	18,509		18,509
Building Clean-up, Equipment Moving and Other Expenses [Member]
Restructuring Reserve [Roll Forward]
Restructuring and other charges	19	$ 643	1,458	$ 1,531
Restructuring Reserve	989		989
2016 Plan [Member]
Restructuring Reserve [Roll Forward]
Restructuring Reserve			0
Restructuring and other charges			356
Payments for Restructuring			(265)
Restructuring Reserve	91		91
2016 Plan [Member] | Employee Severance Costs [Member]
Restructuring Reserve [Roll Forward]
Restructuring Reserve			0
Restructuring and other charges			352
Payments for Restructuring			(261)
Restructuring Reserve	91		91
2016 Plan [Member] | Lease Termination Expenses [Member]
Restructuring Reserve [Roll Forward]
Restructuring Reserve			0
Restructuring and other charges			0
Payments for Restructuring			0
Restructuring Reserve	0		0
2016 Plan [Member] | Multi-Employer Pension Withdrawal Expenses [Member]
Restructuring Reserve [Roll Forward]
Restructuring Reserve			0
Restructuring and other charges			0
Payments for Restructuring			0
Restructuring Reserve	0		0
2016 Plan [Member] | Building Clean-up, Equipment Moving and Other Expenses [Member]
Restructuring Reserve [Roll Forward]
Restructuring Reserve			0
Restructuring and other charges			4
Payments for Restructuring			(4)
Restructuring Reserve	0		0
2015 Plan [Member]
Restructuring Reserve [Roll Forward]
Restructuring Reserve			276
Restructuring and other charges			1,893
Payments for Restructuring			(610)
Restructuring Reserve	1,559		1,559
2015 Plan [Member] | Employee Severance Costs [Member]
Restructuring Reserve [Roll Forward]
Restructuring Reserve			276
Restructuring and other charges			613
Payments for Restructuring			(319)
Restructuring Reserve	570		570
2015 Plan [Member] | Lease Termination Expenses [Member]
Restructuring Reserve [Roll Forward]
Restructuring Reserve			0
Restructuring and other charges			0
Payments for Restructuring			0
Restructuring Reserve	0		0
2015 Plan [Member] | Multi-Employer Pension Withdrawal Expenses [Member]
Restructuring Reserve [Roll Forward]
Restructuring Reserve			0
Restructuring and other charges			0
Payments for Restructuring			0
Restructuring Reserve	0		0
2015 Plan [Member] | Building Clean-up, Equipment Moving and Other Expenses [Member]
Restructuring Reserve [Roll Forward]
Restructuring Reserve			0
Restructuring and other charges			1,280
Payments for Restructuring			(291)
Restructuring Reserve	989		989
Residual Plans [Member]
Restructuring Reserve [Roll Forward]
Restructuring Reserve			20,256
Restructuring and other charges			736
Payments for Restructuring			(2,483)
Restructuring Reserve	18,509		18,509
Residual Plans [Member] | Employee Severance Costs [Member]
Restructuring Reserve [Roll Forward]
Restructuring Reserve			3
Restructuring and other charges			1
Payments for Restructuring			(4)
Restructuring Reserve	0		0
Residual Plans [Member] | Lease Termination Expenses [Member]
Restructuring Reserve [Roll Forward]
Restructuring Reserve			411
Restructuring and other charges			113
Payments for Restructuring			(524)
Restructuring Reserve	0		0
Residual Plans [Member] | Multi-Employer Pension Withdrawal Expenses [Member]
Restructuring Reserve [Roll Forward]
Restructuring Reserve			19,842
Restructuring and other charges			566
Payments for Restructuring			(1,899)
Restructuring Reserve	18,509		18,509
Residual Plans [Member] | Building Clean-up, Equipment Moving and Other Expenses [Member]
Restructuring Reserve [Roll Forward]
Restructuring Reserve			0
Restructuring and other charges			56
Payments for Restructuring			(56)
Restructuring Reserve	0		0
Acquisition Integration Plans [Member]
Restructuring Reserve [Roll Forward]
Restructuring Reserve			392
Restructuring and other charges			439
Payments for Restructuring			(831)
Restructuring Reserve	0		0
Acquisition Integration Plans [Member] | Employee Severance Costs [Member]
Restructuring Reserve [Roll Forward]
Restructuring Reserve			0
Restructuring and other charges			0
Payments for Restructuring			0
Restructuring Reserve	0		0
Acquisition Integration Plans [Member] | Lease Termination Expenses [Member]
Restructuring Reserve [Roll Forward]
Restructuring Reserve			392
Restructuring and other charges			45
Payments for Restructuring			(437)
Restructuring Reserve	0		0
Acquisition Integration Plans [Member] | Multi-Employer Pension Withdrawal Expenses [Member]
Restructuring Reserve [Roll Forward]
Restructuring Reserve			0
Restructuring and other charges			0
Payments for Restructuring			0
Restructuring Reserve	0		0
Acquisition Integration Plans [Member] | Building Clean-up, Equipment Moving and Other Expenses [Member]
Restructuring Reserve [Roll Forward]
Restructuring Reserve			0
Restructuring and other charges			394
Payments for Restructuring			(394)
Restructuring Reserve	$ 0		$ 0