Accrued Insurance Claims Accrued Insurance Claims - Detailed Table (Details) (USD $) In Thousands, unless otherwise specified	Oct. 26, 2013	Jul. 27, 2013
Amounts expected to be paid within one year:
Accrued auto, general liability and workers' compensation	$ 20,824	$ 19,328
Accrued employee group health	3,596	3,710
Accrued damage claims	7,108	6,031
Accrued insurance claims	31,528	29,069
Amounts expected to be paid beyond one year:
Accrued auto, general liability and workers' compensation	27,877	25,245
Accrued damage claims	2,237	2,005
Accrued insurance claims, Noncurrent	30,114	27,250
Total accrued insurance claims	$ 61,642	$ 56,319