Accruals for Self-Insurance and Other Commitments and Contingencies (Details Textual) (USD $)	3 Months Ended	9 Months Ended	12 Months Ended
	Jun. 29, 2006	Jun. 30, 2012	Sep. 30, 2011
Accruals for Self Insurance and Other Commitments and Contingencies [Line Items]
Current asset		$ 192,415,000	$ 166,195,000
Total assets		1,043,551,000	1,010,850,000
Current liability		154,577,000	154,167,000
Accruals for Self Insurance and Other Commitments and Contingencies (Textual) [Abstract]
Insured amount for professional and general liability, per claim	1,000,000	4,000,000	2,000,000
Aggregate self-insurance for professional and general liability	2,000,000	0	8,000,000
Per claim amount in excess of aggregate			500,000
Claim retention with statutory limit, Workers Compensation		350,000
Claim retention with statutory limit, Automobile liability		100,000
Stop loss insurance coverage against extra ordinary claims		300,000
Accounting Standards Update 2010-24 [Member]
Accruals for Self Insurance and Other Commitments and Contingencies [Line Items]
Current asset			187,100,000
Total assets			1,046,800,000
Current liability			148,000,000
Total Liabilities			$ 1,078,000,000