Derivative Financial Instruments Derivatives Overview (Details) (USD $)	3 Months Ended			9 Months Ended
	Sep. 26, 2014		Sep. 27, 2013	Sep. 26, 2014		Sep. 27, 2013
Derivative [Line Items]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net	$ 110,000	[1]	$ 39,000	$ 308,000	[1]	$ 56,000	[1]
Cash Flow Hedging [Member] | Designated as Hedging Instrument [Member]
Derivative [Line Items]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net	200,000			500,000
Foreign Currency Cash Flow Hedge Gain be Reclassified During Next 12 Months	$ 600,000			$ 600,000

[1] See Note 7, Derivative Financial Instruments, for additional information regarding our derivative instruments.