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PENSION PLANS - Fair Value of Pension Assets (Details) - USD ($) $ in Thousands | Jul. 25, 2015 | Jul. 26, 2014
--- | --- | ---
Defined Benefit Plan Disclosure [Line Items] |  |
Cash | $ 718 | $ 812
Equity Securities [Abstract] |  |
Company stock | 651 | 541
U.S large cap | 18,368 | 17,095
U.S. small/mid cap | 6,602 | 5,916
International | 6,431 | 6,963
Emerging markets | 1,193 | 1,267
Fixed Income Securities [Abstract] |  |
U.S treasuries | 9,911 | 9,399
Mortgage-backed | 2,014 | 2,207
Corporate bonds | 5,180 | 5,262
International | 661 | 667
Total | 51,729 | 50,129
Level 1 |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Cash | 718 | 812
Equity Securities [Abstract] |  |
Company stock | 651 | 541
U.S large cap | 18,368 | 17,095
U.S. small/mid cap | 6,602 | 5,916
International | 6,431 | 6,963
Emerging markets | 1,193 | 1,267
Fixed Income Securities [Abstract] |  |
U.S treasuries | 9,911 | 9,399
Mortgage-backed | 0 | 0
Corporate bonds | 2,810 | 1,857
International | 661 | 667
Total | 47,345 | 44,517
Level 2 |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Cash | 0 | 0
Equity Securities [Abstract] |  |
Company stock | 0 | 0
U.S large cap | 0 | 0
U.S. small/mid cap | 0 | 0
International | 0 | 0
Emerging markets | 0 | 0
Fixed Income Securities [Abstract] |  |
U.S treasuries | 0 | 0
Mortgage-backed | 2,014 | 2,207
Corporate bonds | 2,370 | 3,405
International | 0 | 0
Total | $ 4,384 | $ 5,612

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