Forward and Option Purchase Contracts Outstanding (Details) In Thousands, unless otherwise specified	3 Months Ended																3 Months Ended
	Mar. 29, 2014 Currency, British Pound Sterling Derivative Instrument 1 GBP (£)	Mar. 29, 2014 Currency, British Pound Sterling Derivative Instrument 2 GBP (£)	Mar. 29, 2014 Currency, British Pound Sterling Derivative Instrument 3 GBP (£)	Mar. 29, 2014 Currency, British Pound Sterling Derivative Instrument 10 GBP (£)	Mar. 29, 2014 Currency, Euro Derivative Instrument 1 EUR (€)	Mar. 29, 2014 Currency, Euro Derivative Instrument 2 EUR (€)	Mar. 29, 2014 Currency, Euro Derivative Instrument 3 EUR (€)	Mar. 29, 2014 Currency, Euro Derivative Instrument 4 EUR (€)	Mar. 29, 2014 Currency, Euro Derivative Instrument 5 EUR (€)	Mar. 29, 2014 Currency, Euro Derivative Instrument 6 EUR (€)	Mar. 29, 2014 Currency, Euro Derivative Instrument 7 EUR (€)	Mar. 29, 2014 Currency, Euro Derivative Instrument 9 EUR (€)	Mar. 29, 2014 Currency, Euro Derivative Instrument 10 EUR (€)	Mar. 29, 2014 Currency, Euro Derivative Instrument 11 EUR (€)	Mar. 29, 2014 Australia, Dollars Derivative Instrument 7 AUD	Mar. 29, 2014 Australia, Dollars Derivative Instrument 8 AUD	Mar. 29, 2014 Currency, U.S. Dollar Derivative Instrument 4 USD ($)	Mar. 29, 2014 Currency, U.S. Dollar Derivative Instrument 5 USD ($)	Mar. 29, 2014 Currency, U.S. Dollar Derivative Instrument 6 USD ($)	Mar. 29, 2014 Currency, U.S. Dollar Derivative Instrument 8 USD ($)	Mar. 29, 2014 Currency, U.S. Dollar Derivative Instrument 9 USD ($)	Mar. 29, 2014 Currency, U.S. Dollar Derivative Instrument 11 USD ($)
Derivative [Line Items]
Derivative, Notional Amount	£ 10,000,000	£ 7,600,000	£ 5,000,000	£ 205,593	€ 12,072,046	€ 9,179,853	€ 5,966,801	€ 5,500,000	€ 10,000,000	€ 164,203	€ 210,000	€ 369,469	€ 237,900	€ 157,367	318,182	105,383	$ 7,570,750	$ 13,826,000	$ 214,055	$ 92,000	$ 481,750	$ 205,254
Maturity	Jun. 27, 2014	Jun. 27, 2014	Jun. 27, 2014	Apr. 30, 2014	Jun. 27, 2014	Jun. 27, 2014	Jun. 27, 2014	Jun. 27, 2014	Jun. 27, 2014	Mar. 31, 2014	Mar. 31, 2014	Apr. 30, 2014	Apr. 30, 2014	May 31, 2014	Mar. 31, 2014		Jun. 27, 2014	Jun. 27, 2014	Mar. 31, 2014	Apr. 30, 2014	Apr. 30, 2014	May 31, 2014