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Commitment and Contingencies (Tables)
12 Months Ended
Jul. 29, 2017
Commitments and Contingencies Disclosure [Abstract]  
Schedule of Future Minimum Rental Payments for Operating Leases
The future minimum obligation under these leases with original noncancelable terms in excess of one year is as follows (dollars in thousands):
 
Future Minimum Lease Payments
2018
$
23,554

2019
17,422

2020
9,885

2021
5,762

2022
3,252

Thereafter
4,469

Total
$
64,344