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5. Income Taxes (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Apr. 26, 2014 | Oct. 26, 2013 | Apr. 26, 2014 | Jul. 27, 2013
Details |  |  |  |
Total Income Tax Expense On Unrecognized Tax Benefits and Interest and Penalties For Prior Year |  | $ 10,052 |  |
Income Tax Expense Related To Unrecognized Tax Benefit For Prior Year |  | 4,933 |  |
Federal Benefit on Unrecognized Tax Benefit For Prior Year |  | 2,656 |  |
Income Tax Expense Related To Interest and Penalties For Prior Year |  | 5,119 |  |
Federal Benefit on Tax Interest and Penalties For Prior Year |  | 2,078 |  |
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Estimated Range of Change, Lower Bound | 0 |  | 0 |
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Estimated Range of Change, Upper Bound | 26,790 |  | 26,790 |
Unrecognized Tax Benefits, Interest on Income Taxes Expense | 680 |  | 9,653 |
Unrecognized Tax Benefits, Interest on Income Taxes Accrued | $ 15,473 |  | $ 15,473 | $ 5,820

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- Definition The estimated lower bound of the reasonably possible change in the total amount of the unrecognized tax benefit (that will significantly increase or decrease within twelve months of the balance sheet date) for a tax position taken. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32718-109319 + Details
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- Definition Amount of interest expense accrued for an underpayment of income taxes. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32718-109319 + Details
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