Supplemental Cash Flow Information (Tables)

6 Months Ended

Jun. 30, 2017

Supplemental Cash Flow Elements [Abstract]

Schedule of Cash Flow, Supplemental Disclosures

	Six Months Ended
(in thousands)	June 30, 2017		July 1, 2016
Noncash investing and financing activities:
Property, plant and equipment purchases included in accounts payable	$	4,825	$	9,696
Purchase of technology included in accrued expenses	—		1,000
Divestiture of noncash assets	—		54,591
Divestiture of liabilities	—		2,119