Income Taxes - Differences Between the Company's Effective Tax Rate and the Statutory Tax Rate (Detail) (USD $)
In Thousands, unless otherwise specified |
12 Months Ended | ||
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Dec. 31, 2013
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Dec. 31, 2012
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Dec. 31, 2011
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Income Tax Disclosure [Abstract] | |||
Income tax benefit at federal statutory rate (35%) | $ (10,538) | $ (13,678) | $ (19,932) |
State and local income taxes net of federal tax benefit | (839) | (1,470) | (2,503) |
Permanent items | 738 | 754 | 890 |
Rate change | 1,892 | 1,147 | (2,500) |
Expiration of attribute carryforwards | 242 | 5,135 | 2,884 |
Research and development tax credits | (1,206) | 829 | (2,108) |
Other | 1,144 | 281 | 731 |
Change in valuation allowance | 8,567 | 7,002 | 22,538 |
Income tax expense |
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- Definition
Income tax reconciliation income tax expense benefit expiration of carryforwards. No definition available.
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- Definition
Income tax reconciliation income tax expense benefit for permanent items. No definition available.
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- Definition
Income tax reconciliation state and local income taxes net of federal tax benefit. No definition available.
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- Details
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- Definition
Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to increase (decrease) in the valuation allowance for deferred tax assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations, attributable to increase (decrease) in the income tax rates. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The amount of income tax expense or benefit for the period computed by applying the domestic federal statutory tax rates to pretax income from continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to other adjustments. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to tax credits. Including, but not limited to, research credit, foreign tax credit, investment tax credit, and other tax credits. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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