Common Stock Repurchase (Narrative) (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		26 Months Ended	29 Months Ended	258 Months Ended
	Jun. 29, 2013	Jun. 30, 2012	Mar. 30, 2013	Jun. 29, 2013	Jun. 29, 2013	Jan. 21, 2011
Common Stock Repurchase [Abstract]
Share repurchase authorized amount			$ 60,000
Number of shares authorized to be repurchased						2,500,000
Number of shares repurchased	16,000	6,000		1,688,000	4,032,000
Cost of shares repurchased	$ 350	$ 113	$ 32,079	$ 32,429	$ 68,980
Remaining authorized repurchase number of shares	812,000			812,000	812,000	556,000