CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY (Unaudited) - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Additional Paid In Capital	Retained Earnings	Accumulated Other Comprehensive Loss	Treasury Stock
Beginning Balance at Dec. 31, 2015					$ (371,124)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	$ 50,868
Other comprehensive (loss) income	23,173
Ending Balance at Mar. 27, 2016					(347,930)
Beginning Balance (in shares) at Dec. 31, 2016		45,814				1,741
Beginning Balance at Dec. 31, 2016	2,137,517	$ 45,814	$ 506,800	$ 2,194,593	(438,717)	$ (170,973)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	40,170			40,170
Cash dividends ($0.34 per share)	(15,287)			(15,287)
Other comprehensive (loss) income	49,600				49,600
Settlements of convertible notes (in shares)		928				0
Settlements of convertible notes	4,848	$ 928	3,890			$ 30
Settlements of note hedges associated with convertible notes (in shares)						119
Settlements of note hedges associated with convertible notes and warrants	2		19,311			$ (19,309)
Shares issued under compensation plans (in shares)		53				41
Shares issued under compensation plans	1,966	$ 53	(156)			$ 2,069
Deferred compensation (in shares)						(2)
Deferred compensation	88					$ 88
Ending Balance (in shares) at Apr. 02, 2017		46,795				1,817
Ending Balance at Apr. 02, 2017	$ 2,218,904	$ 46,795	$ 529,845	$ 2,219,476	$ (389,117)	$ (188,095)