Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Jul. 04, 2015	Jan. 03, 2015
Assets:
Property, plant and equipment, accumulated depreciation	$ 581,537	$ 525,699
Intangible assets, accumulated amortization	$ 219,324	$ 184,909
Stockholders’ equity:
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	250,000,000	250,000,000
Common stock, shares issued	167,029,085	166,213,793
Treasury stock, shares	1,824,535	1,501,130