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Income Taxes (Details) (USD $)
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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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Dec. 31, 2010
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|---|---|---|---|---|
| Income Tax Disclosure [Abstract] | ||||
| Anticpated increase in equity, if deferred tax benefits are recognized | $ 1,100,000 | |||
| Unrecognized tax benefits | 5,771,000 | 5,726,000 | 5,025,000 | 5,111,000 |
| Unrecognized tax benefits that would impact effective tax rate | 800,000 | 900,000 | 200,000 | |
| Unrecognized tax benefits that would not impact effective tax rate | 5,000,000 | 4,800,000 | 4,800,000 | |
| Income tax penalties and tax related interest accrued | 400,000 | 200,000 | 100,000 | |
| Valuation allowance | 98,205,000 | 99,731,000 | ||
| Increase in unrecognized tax benefits from settlements with taxing authorities | $ 300,000 |