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Fair Value Measurements (Tables) | 12 Months Ended
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Dec. 31, 2012
Fair Value Measurements [Abstract] |
Schedule of Fair Value of Available-for-Sale and Other Investments [Table Text Block] |
(In thousands) |  |  |  |  | Gross |  |  | Gross |  |  |
|  |  |  |  | Unrealized |  |  | Unrealized |  |  | Fair
Investments |  | Cost |  |  | Losses |  |  | Gains |  |  | Value
2012 |  |  |  |  |  |  |  |  |  |  |
Available-for-sale | $ | 5,207 |  | $ | - |  | $ | 106,220 |  | $ | 111,427
Other cost investments |  | 7,769 |  |  | - |  |  | - |  |  | 7,769
Total | $ | 12,976 |  | $ | - |  | $ | 106,220 |  | $ | 119,196
2011 |  |  |  |  |  |  |  |  |  |  |
Available-for-sale | $ | 7,786 |  | $ | - |  | $ | 65,214 |  | $ | 73,000
Other cost investments |  | 4,766 |  |  | - |  |  | - |  |  | 4,766
Total | $ | 12,552 |  | $ | - |  | $ | 65,214 |  | $ | 77,766
Schedule of Accumulated Other Comprehensive Loss on Interest Rate Swaps [Table Text Block] |
(In thousands) |  | Accumulated other
|  | comprehensive loss
Balance at December 31, 2010 | $ | 134,067
Other comprehensive income |  | 33,775
Balance at December 31, 2011 |  | 100,292
Other comprehensive income |  | 52,112
Balance at December 31, 2012 | $ | 48,180

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