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Intangibles, Net (Tables) | 12 Months Ended
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Jul. 31, 2011
Intangible Assets, Net (Excluding Goodwill) [Abstract] |
Intangible assets for 31 July 2011 and 31 July 2010 |
|  |  |  | July 31, 2011 |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
|  |  |  | Gross Carrying Amount |  | Accumulated Amortization |  | Net Book Value |  | Weighted Average Remaining Useful Life (in years)
Amortized intangible assets: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Covenants not to compete |  |  |  | $ | 10,896 |  |  | $ | (10,486 | ) |  | $ | 410 |  |  |  | 3 |
Supply contracts |  |  |  |  | 27,238 |  |  |  | (15,409 | ) |  |  | 11,829 |  |  |  | 3 |
Licenses and databases |  |  |  |  | 1,337 |  |  |  | (828 | ) |  |  | 509 |  |  |  | 3 |
|  |  |  | $ | 39,471 |  |  | $ | (26,723 | ) |  | $ | 12,748 |  |  |  |  |
|  |  |  | July 31 , 2010 |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
|  |  |  | Gross Carrying Amount |  | Accumulated Amortization |  | Net Book Value |  | Weighted Average Remaining Useful Life (in years)
Amortized intangible assets: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Covenants not to compete |  |  |  | $ | 10,697 |  |  | $ | (10,233 | ) |  | $ | 464 |  |  |  | 1 |
Supply contracts |  |  |  |  | 22,365 |  |  |  | (10,521 | ) |  |  | 11,844 |  |  |  | 4 |
Licenses and databases |  |  |  |  | 1,317 |  |  |  | (609 | ) |  |  | 708 |  |  |  | 4 |
|  |  |  | $ | 34,379 |  |  | $ | (21,363 | ) |  | $ | 13,016 |  |  |  |  |
Aggregate amortization expense on intangible assets |
2012 |  |  |  | $ | 4,926 |
2013 |  |  |  |  | 4,124 |
2014 |  |  |  |  | 1,338 |
2015 |  |  |  |  | 1,090 |
2016 |  |  |  |  | 875 |
Thereafter |  |  |  |  | 395 |
|  |  |  | $ | 12,748 |

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- Definition Tabular disclosure of amortizable intangibles assets, in total and by major class, including the gross carrying amount and accumulated amortization. A major class is composed of intangible assets that can be grouped together because they are similar, either by their nature or by their use in the operations of a company. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 45 -Subparagraph a -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6905858&loc=d3e16265-109275 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) -URI http://asc.fasb.org/extlink&oid=6905858&loc=d3e16323-109275 + Details
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- Definition Tabular disclosure of the amount of amortization expense expected to be recorded in succeeding fiscal years for finite-lived intangible assets. + Details
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