CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY (USD $) In Thousands, unless otherwise specified	Total	Common Stock	Additional Paid in Capital	Retained Earnings	Accumulated Other Comprehensive (Loss) Income	Treasury Stock	Noncontrolling Interest
Beginning Balance at Dec. 31, 2013	$ 1,916,016	$ 43,243	$ 409,338	$ 1,696,424	$ (110,855)	$ (124,623)	$ 2,489
Beginning Balance (in shares) at Dec. 31, 2013		43,243				2,064
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	35,144			34,958			186
Cash dividends (USD per share)	(14,051)			(14,051)
Other comprehensive (loss) income	4,811				4,745		66
Shares issued under compensation plans (in shares)		114				68
Settlements of convertible notes	3,226	114	641			2,471
Deferred compensation (in shares)						(2)
Settlements of note hedges associated with convertible notes	81					81
Ending Balance at Mar. 30, 2014	1,945,227	43,357	409,979	1,717,331	(106,110)	(122,071)	2,741
Ending Balance (in shares) at Mar. 30, 2014		43,357				1,994
Beginning Balance at Dec. 31, 2014	1,913,699	43,420	422,394	1,827,845	(260,895)	(121,455)	2,390
Beginning Balance (in shares) at Dec. 31, 2014		43,420				1,981
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	38,570			38,352			218
Cash dividends (USD per share)	(14,118)			(14,118)
Other comprehensive (loss) income	(81,140)				(81,201)		61
Settlements of convertible notes	2		(22)			24
Settlements of note hedges associated with convertible notes	0		43			(43)
Shares issued under compensation plans (in shares)		31				55
Settlements of convertible notes	3,516	31	2,058			1,427
Deferred compensation (in shares)						(1)
Settlements of note hedges associated with convertible notes	73					73
Ending Balance at Mar. 29, 2015	$ 1,860,602	$ 43,451	$ 424,473	$ 1,852,079	$ (342,096)	$ (119,974)	$ 2,669
Ending Balance (in shares) at Mar. 29, 2015		43,451				1,925