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Segments and Related Information (Reconciliation of Segment Assets from Segment to Consolidated) (Details) (USD $) | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
--- | --- | --- | ---
Segment Reporting, Asset Reconciling Item [Line Items] |  |  |
Total assets | $ 2,919,638,000 | $ 2,416,308,000 | $ 2,094,700,000
Current assets of discontinued operations | 2,300,000 | 18,600,000 | 30,600,000
Long-term assets of discontinued operations | 10,100,000 | 7,600,000 | 121,700,000
Continuing Operations [Member] |  |  |
Segment Reporting, Asset Reconciling Item [Line Items] |  |  |
Total assets | $ 2,907,200,000 | $ 2,390,100,000 | $ 1,942,400,000

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