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Senior Credit Facilities (Details) (USD $) | 9 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Sep. 30, 2013 | Sep. 30, 2013 | Dec. 31, 2012
Covenants [Abstract] |  |  |
Covenant limitation incur additional debt in excess of | $ 250,000,000 | $ 250,000,000 |
Maximum pro forma senior leverage ratio | 2.50 | 2.50 |
Consolidated fixed charges |  | 342,300,000 |
Consolidated funded debt outstanding | 804,900,000 | 804,900,000 |
Consolidated EBITDA |  | 371,100,000 |
Outstanding indebtedness less cash in excess of | 25,000,000 | 25,000,000 |
Adjusted Consolidated EBITDA |  | 524,100,000 |
Pro forma consolidated leverage ratio | 2.75 | 2.75 |
Financial Covenants Ratios (Table Details) [Abstract] |  |  |
Required consolidated leverage ratio, maximum | 3.25 | 3.25 |
Actual consolidated leverage ratio | 2.17 | 2.17 |
Required fixed charge coverage ratio, minimum | 1.35 | 1.35 |
Actual fixed charge coverage ratio | 1.53 | 1.53 |
Interest Rate [Abstract] |  |  |
Interest accrued at Prime rate plue %, minimum | 0.50% | 0.50% |
Interest accrued at Prime rate plus %, maximum | 1.50% | 1.50% |
Interest accrued at Eurodollar rate plus %, minimum | 1.50% | 1.50% |
Interest accrued at Eurodollar rate plus %, maximum | 2.50% | 2.50% |
Interest period | Interest periods range from seven days (for borrowings under the revolving credit facility only) to one, two, three or six months, at our election. |  |
Margin on Eurodollar rate | 2.25% | 2.25% |
Margin on prime rate | 1.25% | 1.25% |
Commitment fee percentage, minimum | 0.30% |  |
Commitment fee percentage, maximum | 0.50% |  |
Senior Credit Facilities (Details) [Abstract] |  |  |
Event of default-3rd party ownership % of our voting stock | 35.00% | 35.00% |
Event of default-not satisfied or bonded judgment in excess of | 50,000,000 | 50,000,000 |
Maximum period allowed for pending judgment to satisfy or bond (in days) | 30 | 30 |
Maximum fund drawn on individual occasion | 100,000,000 | 100,000,000 |
Maximum total amount outstanding | 221,000,000 | 221,000,000 |
Debt Instrument [Line Items] |  |  |
Senior credit facilities, maximum amount | 750,000,000 | 750,000,000 |
Term loan, maximum facility | 250,000,000 | 250,000,000 |
Term loan, amount outstanding | 193,800,000 | 193,800,000 | 212,500,000
Line of credit, maximum facility | 500,000,000 | 500,000,000 |
Line of credit, amount outstanding | 89,000,000 | 89,000,000 | 175,000,000
Letters of Credit Outstanding, Amount | 115,100,000 | 115,100,000 |
Letters of credit, amount available | 295,900,000 | 295,900,000 |
Unsecured line of credit, maximum facility | 20,000,000 | 20,000,000 |
Unsecured line of credit, amount outstanding | $ 1,800,000 | $ 1,800,000 | $ 0

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