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Income Taxes (Narrative) (Details) (USD $) In Millions, unless otherwise specified | 1 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2007 | Jul. 31, 2012 | Jul. 31, 2011 | Jul. 31, 2010
Net operating loss carryforwards recognized | $ 8.0 |  |  |
Net operating loss carryforwards amount |  | 73.8 |  |
Tax refund on amended returns |  | 6.2 |  |
Reduction in federal tax liability |  | 19.6 |  |
Unrecognized tax benefits, income tax penalties and interest accrued |  | 1.8 | 1.9 |
Income tax examination, penalties and interest expense |  | (0.1) | (0.2) | (0.2)
State and Local Jurisdiction [Member] |  |  |  |
State operating loss carryforwards |  | 35.1 |  |
NOL carryforwards expiration date |  | July 31, 2031 |  |
Operating loss carryforwards, valuation allowance |  | 25.1 |  |
Maximum [Member] |  |  |  |
Reversal amount of other long-term liabilities and accrued interest and penalties |  | 27.6 |  |
Minimum [Member] |  |  |  |
Reversal amount of other long-term liabilities and accrued interest and penalties |  | $ 0 |  |

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- Definition The amount of Section 382 net operating loss carryforwards recognized, or utilized, each year through calendar year December 31, 2007. + References No definition available. + Details
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- Definition The amount of Section 382 net operating loss carryforwards that the Company is seeking to utilize under amended previously filed tax returns. + References No definition available. + Details
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- Definition The reduction in federal tax liability the Company has taken relating to net operating loss carryforwards that the Company is seeking to utilize under amended previously filed tax returns. + References No definition available. + Details
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- Definition Reversal amount of other long-term liabilities and accrued interest and penalties + References No definition available. + Details
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- Definition The amount of state and local operating loss carryforwards, before tax effects, available to reduce future taxable income under enacted tax laws. + References No definition available. + Details
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- Definition The fiscal year end which all state operating loss carryforwards will expire by. + References No definition available. + Details
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- Definition The tax refund amount requested by the Company related to amended returns. + References No definition available. + Details
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- Definition The sum of the amounts of estimated penalties and interest recognized in the period arising from income tax examinations. + 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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- Definition The portion of the valuation allowance pertaining to the deferred tax asset representing potential future taxable deductions from net operating loss carryforwards for which it is more likely than not that a tax benefit will not be realized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32559-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 109 -Paragraph 48 -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 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 109 -Paragraph 43 -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 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 30 -Paragraph 5 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=6907311&loc=d3e30536-109315 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 109 -Paragraph 17 -Subparagraph e -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. + Details
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- Definition This element represents the total of accruals as of the date of the statement of financial position for interest recognized for an underpayment of income taxes computed by applying the applicable statutory rate of interest to the difference between a tax position recognized for financial reporting purposes and the amount previously taken or expected to be taken in a tax return of the entity and the amount of statutory penalties for a tax position claimed or expected to be claimed by the entity, in its tax return, that does not meet the minimum statutory threshold to avoid payment of penalties. + 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 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Interpretation (FIN) -Number 48 -Paragraph 21 -Subparagraph c -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 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Interpretation (FIN) -Number 48 -Paragraph 15, 16 -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. + Details
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