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SIGNIFICANT ACCOUNTING POLICIES (Details 4) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Jul. 28, 2018 | Jul. 29, 2017 | Jul. 30, 2016
Amortizing intangible assets: |  |  |
Gross Carrying Amount | $ 201,846 | $ 202,452 |
Accumulated Amortization | 64,438 | 49,926 |
Net | 137,408 | 152,526 |
Total intangible assets |  |  |
Intangible assets, gross | 257,647 | 258,215 |
Intangible assets, net | 193,209 | 208,289 |
Amortization expense | 15,000 | 15,200 | $ 8,900
Estimated future amortization expense on finite lived intangible assets |  |  |
2014 | 15,147 |  |
2015 | 14,520 |  |
2016 | 13,622 |  |
2017 | 12,337 |  |
2018 | 12,845 |  |
2023 and thereafter | 68,937 |  |
Net | 137,408 | 152,526 |
Customer relationships |  |  |
Amortizing intangible assets: |  |  |
Gross Carrying Amount | 197,246 | 197,852 |
Accumulated Amortization | 61,543 | 48,044 |
Net | 135,703 | 149,808 |
Estimated future amortization expense on finite lived intangible assets |  |  |
Net | 135,703 | 149,808 |
Non-compete agreements |  |  |
Amortizing intangible assets: |  |  |
Gross Carrying Amount | 2,900 | 2,900 |
Accumulated Amortization | 1,914 | 1,334 |
Net | 986 | 1,566 |
Estimated future amortization expense on finite lived intangible assets |  |  |
Net | 986 | 1,566 |
Trademarks and tradenames |  |  |
Amortizing intangible assets: |  |  |
Gross Carrying Amount | 1,700 | 1,700 |
Accumulated Amortization | 981 | 548 |
Net | 719 | 1,152 |
Indefinite lived intangible assets: |  |  |
Indefinite lived intangible assets | 55,801 | 55,763 |
Indefinite-Lived Intangible assets, accumulated amortization | 0 | 0 |
Estimated future amortization expense on finite lived intangible assets |  |  |
Net | $ 719 | $ 1,152 |

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- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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