Income Taxes (Details 2) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income Taxes
Reclassification of long-term deferred income tax liabilities		$ 26,916
Tax carryforwards
Net operating loss carryforwards, tax effected	64,718	81,124
Tax benefit	(97,275)us-gaap_IncomeTaxExpenseBenefit	62,127us-gaap_IncomeTaxExpenseBenefit	114,304us-gaap_IncomeTaxExpenseBenefit
Roll forward of valuation allowance:
Balance at Beginning of the Year	40,278
Balance at the End of the Year	40,182	40,278
Tax benefits for awards issued and incremental tax benefits in excess of compensation expense	(60)	2,389	1,045
State
Tax carryforwards
Net operating loss carryforwards, before tax effect	74,439
Net operating loss carryforwards, tax effected	112
Foreign
Tax carryforwards
Net operating loss carryforwards, tax effected	64,606
Net operating loss carryforwards subject to valuation allowance (as a percent)	62.00%
Federal
Tax carryforwards
Net operating loss carryforwards, before tax effect	88,090
Net operating loss carryforwards, tax effected	0
Tax benefit	0
Valuation Allowance of Deferred Tax Assets
Roll forward of valuation allowance:
Balance at Beginning of the Year	40,278	76,050	72,239
Charged (Credited) to Expense	9,404	(27,186)	2,274
Other Additions			1,537
Other Deductions	(9,500)	(8,586)
Balance at the End of the Year	$ 40,182	$ 40,278	$ 76,050

This element represents the percentage of operating loss carryforwards' valuation allowance.

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- Definition

Represents the reclassification of long-term deferred income tax liabilities against current prepaid and other and accrued expenses included within current assets and current liabilities respectively.

+ References

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- Definition

Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards.

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Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.

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Amount of cash inflow from realized tax benefit related to deductible compensation cost reported on the entity's tax return for equity instruments in excess of the compensation cost for those instruments recognized for financial reporting purposes.

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- Definition

Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

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Total of 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, charged to costs and expenses.

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Total of the deductions in a given period to 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, representing receivables written off as uncollectible and portions of the reserves utilized, respectively.

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