LONG-TERM DEBT (Schedule Of Debt Outstanding) (Details) - USD ($) $ in Thousands	Jul. 01, 2017	Dec. 31, 2016
Debt Disclosure [Abstract]
Revolving credit facility	$ 91,000	$ 227,000
Other long-term debt	1,053,750	1,078,250
Debt issuance costs, net	(10,978)	(10,291)
Total debt, net	1,133,772	1,294,959
Current portion of long-term debt	(49,000)	(49,000)
Total long-term debt, net	$ 1,084,772	$ 1,245,959