Derivative Financial Instruments (Details) (USD $)	3 Months Ended		6 Months Ended
	Dec. 31, 2011 Interest Rate Swap Agreements [Member] Fair Value Hedging [Member] Interest Expense [Member]	Jan. 01, 2011 Interest Rate Swap Agreements [Member] Fair Value Hedging [Member] Interest Expense [Member]	Dec. 31, 2011 Interest Rate Swap Agreements [Member] Fair Value Hedging [Member] Interest Expense [Member]	Jan. 01, 2011 Interest Rate Swap Agreements [Member] Fair Value Hedging [Member] Interest Expense [Member]	Jul. 03, 2010 2014 Swap [Member]	Jul. 03, 2010 2013 Swap [Member]	Dec. 31, 2011 Designated as Hedging Instrument [Member] Other Assets [Member] Interest Rate Swap Agreements [Member]	Jul. 02, 2011 Designated as Hedging Instrument [Member] Other Assets [Member] Interest Rate Swap Agreements [Member]	Jan. 01, 2011 Designated as Hedging Instrument [Member] Other Assets [Member] Interest Rate Swap Agreements [Member]
Notional amount of swap					$ 200,000,000	$ 250,000,000
Fair value of interest rate swap agreements							10,671,000	13,482,000	13,266,000
(Gain) loss on interest rate swap agreements	$ (3,342,000)	$ (3,986,000)	$ (3,829,000)	$ (4,486,000)