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Significant components of U.S. deferred income tax expense (benefit) (Details) (USD $)
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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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| Significant components of U.S. deferred income tax expense (benefit) | |||
| Deferred tax (benefit) expense | $ (3,209,000) | $ 10,661,000 | $ 17,774,000 |
| Net operating loss carryforward (generated) expired | (6,536,000) | 26,924,000 | 187,597,000 |
| Valuation allowance increase (decrease) | 9,745,000 | (37,585,000) | (205,371,000) |
| Provision for Income taxes | $ 0 | $ 0 | $ 0 |
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- Definition
Net operating loss carryforward (generated) expired No definition available.
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- Definition
Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. No definition available.
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- Details
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- Definition
Total increases or decreases in allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs. No definition available.
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- Definition
Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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