Equity Repurchases of Common Stock (Details) (USD $) In Thousands, unless otherwise specified	0 Months Ended	3 Months Ended	6 Months Ended	9 Months Ended				1 Months Ended
	Feb. 19, 2014	Sep. 28, 2014	Jun. 29, 2014	Sep. 28, 2014	Sep. 29, 2013	Aug. 31, 2014	Jan. 31, 2014	Oct. 31, 2014 Subsequent Event [Member]
Stock Repurchase Program, Authorized Amount						$ 100,000	$ 275,000
Treasury Stock, Shares, Acquired	29,730	1,739						941
Treasury Stock, Value, Acquired, Cost Method	275,000	13,935		291,240	41,469			7,347
Stock Repurchase Program, Purchase Commissions		30						16
Stock Repurchase Program, Cost Incurred			$ 2,275