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Sale of First Choice (Details) (USD $) | 12 Months Ended | 0 Months Ended | 12 Months Ended
--- | --- | --- | ---
Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011 | Sep. 23, 2011 First Choice [Member] | Dec. 31, 2013 First Choice [Member] | Dec. 31, 2013 First Choice [Member] Other Income [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |
Sale of Business Segment subject to adjustments of certain componets of working capital |  |  |  | $ 270,000,000 |  |
Sale of Business Segment, Amount received including estimate of components of working capital |  |  |  | 329,300,000 |  |
Gain on sale of First Choice | 0 | 1,012,000 | 174,925,000 |  | 174,900,000 | 1,000,000
Sale of Business Segment Working Capital That Parent Disputed, Portion of Disputed Total Awarded |  |  |  |  | 6,400,000 |
Sale of Business Segment Working Capital That Parent Disputed, Disputed Amount |  |  |  |  | $ 8,200,000 |

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