Income Taxes (Schedule of Components of Deferred Income Tax Expense/(Benefit)) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Income Taxes [Abstract]
Net effect of temporary differences	$ (7,557)	$ 1,593	$ 12,035
Foreign tax credits	9,468	(5,668)	(14,262)
Postretirement benefits	(18,337)	5,119	3,216
Net impact to operating loss carryforwards	1,240	3,258	26,341
Enacted changes in tax laws and rates	(973)	115	324
Adjustments to beginning-of-the-year valuation allowance balance for changes in circumstances	(2,442)	22,798
Change in tax status		(3,344)	(161)
Recognition of deferred gain on extinguished debt			(13,383)
Total	$ (18,601)	$ 23,871	$ 14,110

Deferred Income Tax Expense (Benefit), Net Effect Of Temporary Differences.

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- Definition

Income Tax Benefit, Change In Postretirement Benefit Plan.

+ References

No definition available.

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Income Tax (Benefit), Change In Tax Status.

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- Definition

Net benefit of operating loss carryforwards.

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No definition available.

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- Definition

The component of income tax expense for the period representing the increase (decrease) in the entity's deferred tax assets and liabilities pertaining to continuing operations.

+ References

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-Glossary Deferred Tax Expense (or Benefit)

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The portion of the difference between total income tax expense or benefit as reported in the Income Statement and the expected income tax expense or benefit computed by applying the domestic federal statutory income tax rates to pretax income from continuing operations attributable to changes in the valuation allowance for deferred tax assets in the period.

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The portion of the difference between total income tax expense or benefit as reported in the Income Statement and the expected income tax expense or benefit computed by applying the domestic federal statutory income tax rates to pretax income from continuing operations, that is attributable to changes in the income tax rates under enacted tax laws in the period.

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The portion of the difference between total income tax expense or benefit as reported in the Income Statement and the expected income tax expense or benefit computed by applying the domestic federal statutory income tax rates to pretax income from continuing operations attributable to foreign tax credits generated or utilized under enacted tax laws during the period.

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