A ratio calculated by dividing the reported amount of income tax expense attributable to continuing operations for the period by GAAP-basis pretax income from continuing operations.

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The domestic federal statutory tax rate applicable under enacted tax laws to the Company's pretax income from continuing operations for the period. The "statutory" tax rate is the regular tax rate if there are alternative tax systems.

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- Definition

The sum of the current income tax expense or benefit and the deferred income tax expense or benefit pertaining to continuing operations.

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- Definition

The amount of the valuation allowance recorded as of the balance sheet date pertaining to the specified deferred tax asset for which an assessment was made that it is more likely than not that all or a portion of such deferred tax asset will not be realized through related deductions on future tax returns.

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Income Taxes (Details) (USD $)	3 Months Ended		6 Months Ended		36 Months Ended
Income Taxes (Details) (USD $)	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011	Dec. 31, 2011
Income Tax Contingency [Line Items]
Income tax expense	$ 1,901,000	$ 7,894,000	$ 3,089,000	$ 14,512,000
Valuation allowance	17,900,000		17,900,000
Cumulative Loss from Continuing Operations					217,000,000
Loss asset impairment					324,000,000
Effective income rax rate			39.00%	41.00%
Statutory income tax rate			35.00%
Section 382 annual base limitation	7,400,000		7,400,000
Net operating loss carryforward	145,400,000		145,400,000
U.S. [Member]
Income Tax Contingency [Line Items]
Net operating loss carryforward	$ 47,600,000		$ 47,600,000