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Restructuring - Textual (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 27, 2014	Dec. 28, 2013	Dec. 29, 2012
Restructuring (Textual) [Abstract]
Restructuring charge	$ 2,266us-gaap_RestructuringCharges	$ 1,740us-gaap_RestructuringCharges	$ 0us-gaap_RestructuringCharges
Payments for restructuring charges	1,269us-gaap_PaymentsForRestructuring	844us-gaap_PaymentsForRestructuring
Non-cash acceleration of vesting of RSUs		896
Employee severance and benefits [Member]
Restructuring (Textual) [Abstract]
Restructuring charge	1,016
Payments for restructuring charges	780	844
Non-cash acceleration of vesting of RSUs		896
Other [Member]
Restructuring (Textual) [Abstract]
Restructuring charge	351	0
Payments for restructuring charges	288	0
Non-cash acceleration of vesting of RSUs		0
Facility termination costs [Member]
Restructuring (Textual) [Abstract]
Restructuring charge	899	0
Payments for restructuring charges	201	0
Non-cash acceleration of vesting of RSUs		$ 0

- Definition

Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

+ References+ Details