Derivative and Hedgiing Activities Derivatives and Hedging Activities - Additional Information (Details) - USD ($)	3 Months Ended		6 Months Ended		12 Months Ended
	Jul. 03, 2015	Jun. 27, 2014	Jul. 03, 2015	Jun. 27, 2014	Dec. 31, 2014
Derivative [Line Items]
Derivative Assets, Gross Amounts of Derivatives Offset in the Condensed Consolidated Balance Sheets	$ 0		$ 0		$ 0
Derivative Liabilities, Gross Amounts of Derivatives Offset in the Condensed Consolidated Balance Sheets	0		0		0
Accumulated Other Comprehensive Income (Loss), Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Effect Net of Tax	456,000		456,000		$ 311,000
Designated as Hedging Instrument [Member] | Forward Contracts [Member]
Derivative [Line Items]
Derivative, Term of Contract					12 months
Not Designated as Hedging Instrument [Member] | Forward Contracts [Member]
Derivative [Line Items]
Derivative, Term of Contract					3 months
Other Comprehensive Income (Loss) [Member]
Derivative [Line Items]
Net unrealized gains in AOCI	516,000	$ 0	332,000	$ 0
Operating Expense [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Derivative [Line Items]
Accumulated Other Comprehensive Income (Loss), Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Effect Net of Tax	$ 456,000		$ 456,000