Disicontinued Operations Discontinued Operations (Schedule of Assets and Liabilities Held for Sale) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Disposal Group, Including Discontinued Operation, Balance Sheet Disclosures [Abstract]
Current assets	$ 59,604	$ 61,281
Property, plant and equipment, net	269,303	280,400
Other assets	5,198	5,333
Total assets held for sale	334,105	347,014
Current liabilities	28,111	24,763
Noncurrent liabilities	36,197	35,221
Total liabilities held for sale	$ 64,308	$ 59,984

Represents the sum of the carrying value of all the Assets Held-for-Sale at the balance sheet date.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 205

-SubTopic 20

-Section 50

-Paragraph 1

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Current assets (normally turning over within one year or one business cycle if longer) that are held for sale apart from normal operations and anticipated to be sold within one year.

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Other assets that are held for sale apart from normal operations, not otherwise included elsewhere in the taxonomy and which are anticipated to be sold in less than one year, but by their nature which are not considered current (originally classified based on not being realized or converted to working capital within one year of the date of the statement of financial position or operating cycle, if longer).

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Property, plant and equipment that is held for sale apart from normal operations and anticipated to be sold in less than one year.

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The obligations arising from the sale, disposal, or planned sale in the near future (generally within one year) of a disposal group, including a component of the entity (discontinued operation).

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Carrying value as of the balance sheet date of current obligations (due less than one year or one operating cycle, if longer) arising from the sale, disposal or planned sale in the near future (generally within one year) of a disposal group, including a component of the entity (discontinued operation).

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Carrying value of noncurrent obligations (due more than one year or one operating cycle, whichever is longer) relating to the sale, disposal or planned sale in the near future (generally within one year) of a disposal group, including a component of the entity (discontinued operation), as of the balance sheet date.

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