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Income Taxes (Narrative) (Details) (USD $)
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12 Months Ended | ||
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Dec. 31, 2012
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Dec. 31, 2011
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Dec. 31, 2010
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| Income Tax Expense (Benefit) [Abstract] | |||
| Reduction in current income taxes payable | $ 22,700,000 | $ 14,100,000 | $ 7,200,000 |
| Net operating loss carryforwards | 4,700,000 | ||
| Expiration period of net operating loss carryforwards | 2014 | ||
| Valuation allowance | 5,293,000 | 14,274,000 | |
| Unrecognized tax benefits, including interest | 900,000 | 700,000 | |
| Unrecognized tax benefits, for which deductibility is highly certain | $ 200,000 | $ 200,000 | |
| X | ||||||||||
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- Definition
Unrecognized Tax Benefits, for which deductibility is highly certain No definition available.
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- Definition
Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
The increase (decrease) during the period in the amount due for taxes based on the reporting entity's earnings or attributable to the entity's income earning process (business presence) within a given jurisdiction. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The sum of domestic, foreign and state and local operating loss carryforwards, before tax effects, available to reduce future taxable income under enacted tax laws. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The expiration date of each operating loss carryforward included in total operating loss carryforwards, or the applicable range of such expiration dates. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The gross amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns as of the balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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