Derivatives and Hedging Activities - Impact on Earnings (Details 3) - Foreign Exchange Forward Contract [Member] - USD ($)	3 Months Ended		6 Months Ended
	Jun. 28, 2015	Jun. 29, 2014	Jun. 28, 2015	Jun. 29, 2014
Effective portion of designated cash flow derivative contracts
Amount of gain recognized in OCI	$ 4,251,000	$ 5,450,000	$ 6,412,000	$ 18,918,000
Amount of loss reclassified from AOCI to earnings	(2,150,000)	(7,843,000)	(13,755,000)	(9,407,000)
Cash Flow Hedging [Member]
Effective portion of designated cash flow derivative contracts
Amount of gain recognized in OCI	(69,000)	5,450,000	780,000	18,918,000
Amount of loss reclassified from AOCI to earnings	(2,150,000)	(7,843,000)	(13,755,000)	(9,407,000)
Net Investment Hedging [Member]
Effective portion of designated cash flow derivative contracts
Amount of gain recognized in OCI	4,320,000	0	5,632,000	0
Amount of loss reclassified from AOCI to earnings	$ 0	$ 0	$ 0	$ 0