Derivative Instruments And Hedging Activities (Narrative) (Details) (USD $) In Millions, unless otherwise specified	Jul. 30, 2013	Mar. 30, 2014 Designated As A Hedge [Member]	Mar. 30, 2014 Designated As A Hedge [Member] Natural Gas [Member] MMBTU
Derivative [Line Items]
Notional nonmonetary amount of price risk derivatives			917,112
Derivative, Fixed Interest Rate	2.74%
Notional Amount of Interest Rate Cash Flow Hedge Derivatives	$ 100.0	$ 19.5
Derivative, Floor Interest Rate	1.25%