Reorganization and Realignment Costs G&A Realignment - May 2017 Plan (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 02, 2017	Jul. 03, 2016	Jul. 02, 2017	Jul. 03, 2016
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	$ 17,699	$ 2,487	$ 17,880	$ 5,737
G&A Realignment – May 2017 Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	13,551		$ 13,551
Restructuring Charges	$ 17,245	$ 0		$ 0
Expected costs incurred by the end of 2017	66.67%		66.67%
Severance and related employee costs [Member] | G&A Realignment – May 2017 Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	$ 13,226		$ 13,226
Restructuring and Related Cost, Expected Cost Remaining	4,000		4,000
Recruitment and relocation costs [Member] | G&A Realignment – May 2017 Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	0		0
Restructuring and Related Cost, Expected Cost Remaining	4,000		4,000
Third-party and other costs [Member] | G&A Realignment – May 2017 Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	325		325
Restructuring and Related Cost, Expected Cost Remaining	2,000		2,000
Share based compensation [Member] | G&A Realignment – May 2017 Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	3,694
Restructuring and Related Cost, Expected Cost Remaining	4,000		4,000
Minimum [Member] | G&A Realignment – May 2017 Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	28,000		28,000
Restructuring and Related Cost, Expected Cost Remaining	11,000		11,000
Maximum [Member] | G&A Realignment – May 2017 Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	33,000		33,000
Restructuring and Related Cost, Expected Cost Remaining	$ 16,000		$ 16,000