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Supplemental Guarantor Financial Information (Details 2) (USD $) In Thousands, unless otherwise specified | Sep. 30, 2013 | Dec. 31, 2012 | Sep. 30, 2012 | Dec. 31, 2011
--- | --- | --- | --- | ---
ASSETS |  |  |  |
Current assets | $ 1,303,147 | $ 1,216,222 |  |
Current assets associated with discontinued operations | 102 | 21,746 |  |
Total current assets | 1,303,249 | 1,237,968 |  |
Property, plant and equipment, net | 2,832,962 | 2,842,031 |  |
Intangible and other assets, net | 185,520 | 174,848 |  |
Total long-term assets | 3,018,482 | 3,016,879 |  |
Total assets | 4,321,731 | 4,254,847 |  |
LIABILITIES AND EQUITY |  |  |  |
Current liabilities | 730,752 | 762,967 |  |
Current liabilities associated with discontinued operations | 2,364 | 11,572 |  |
Total current liabilities | 733,116 | 774,539 |  |
Long-term debt | 1,564,308 | 1,564,923 |  |
Other long-term liabilities | 230,987 | 212,082 |  |
Long-term liabilities associated with discontinued operations | 396 | 1,044 |  |
Total liabilities | 2,528,807 | 2,552,588 |  |
Total equity | 1,792,924 | 1,702,259 | 1,705,539 | 1,680,042
Total liabilities and equity | 4,321,731 | 4,254,847 |  |
Eliminations |  |  |  |
ASSETS |  |  |  |
Current assets |  | (33) |  |
Total current assets |  | (33) |  |
Investments in affiliates | (3,297,680) | (2,776,736) |  |
Intangible and other assets, net | (12,060) | (19,815) |  |
Intercompany receivables | (1,227,449) | (1,206,789) |  |
Total long-term assets | (4,537,189) | (4,003,340) |  |
Total assets | (4,537,189) | (4,003,373) |  |
LIABILITIES AND EQUITY |  |  |  |
Current liabilities |  | (74) |  |
Total current liabilities |  | (74) |  |
Intercompany payables | (1,227,449) | (1,206,789) |  |
Other long-term liabilities | (12,060) | (19,774) |  |
Total liabilities | (1,239,509) | (1,226,637) |  |
Total equity | (3,297,680) | (2,776,736) |  |
Total liabilities and equity | (4,537,189) | (4,003,373) |  |
Parent | Reportable Legal Entities |  |  |  |
ASSETS |  |  |  |
Current assets | 200 | 142 |  |
Total current assets | 200 | 142 |  |
Investments in affiliates | 1,815,122 | 1,631,185 |  |
Intangible and other assets, net | 21,845 | 33,234 |  |
Intercompany receivables | 652,671 | 704,319 |  |
Total long-term assets | 2,489,638 | 2,368,738 |  |
Total assets | 2,489,838 | 2,368,880 |  |
LIABILITIES AND EQUITY |  |  |  |
Current liabilities | 14,111 | 5,844 |  |
Total current liabilities | 14,111 | 5,844 |  |
Long-term debt | 844,220 | 884,423 |  |
Total liabilities | 858,331 | 890,267 |  |
Total equity | 1,631,507 | 1,478,613 |  |
Total liabilities and equity | 2,489,838 | 2,368,880 |  |
Guarantor Subsidiaries | Reportable Legal Entities |  |  |  |
ASSETS |  |  |  |
Current assets | 758,384 | 754,303 |  |
Total current assets | 758,384 | 754,303 |  |
Property, plant and equipment, net | 1,165,504 | 1,299,797 |  |
Investments in affiliates | 1,482,558 | 1,145,551 |  |
Intangible and other assets, net | 31,618 | 37,748 |  |
Intercompany receivables | 79,452 | 83,362 |  |
Total long-term assets | 2,759,132 | 2,566,458 |  |
Total assets | 3,517,516 | 3,320,761 |  |
LIABILITIES AND EQUITY |  |  |  |
Current liabilities | 415,519 | 462,668 |  |
Total current liabilities | 415,519 | 462,668 |  |
Long-term debt | 270 |  |  |
Intercompany payables | 1,147,997 | 1,123,427 |  |
Other long-term liabilities | 138,608 | 103,481 |  |
Total liabilities | 1,702,394 | 1,689,576 |  |
Total equity | 1,815,122 | 1,631,185 |  |
Total liabilities and equity | 3,517,516 | 3,320,761 |  |
Other Subsidiaries | Reportable Legal Entities |  |  |  |
ASSETS |  |  |  |
Current assets | 544,563 | 461,810 |  |
Current assets associated with discontinued operations | 102 | 21,746 |  |
Total current assets | 544,665 | 483,556 |  |
Property, plant and equipment, net | 1,667,458 | 1,542,234 |  |
Intangible and other assets, net | 144,117 | 123,681 |  |
Intercompany receivables | 495,326 | 419,108 |  |
Total long-term assets | 2,306,901 | 2,085,023 |  |
Total assets | 2,851,566 | 2,568,579 |  |
LIABILITIES AND EQUITY |  |  |  |
Current liabilities | 301,122 | 294,529 |  |
Current liabilities associated with discontinued operations | 2,364 | 11,572 |  |
Total current liabilities | 303,486 | 306,101 |  |
Long-term debt | 719,818 | 680,500 |  |
Intercompany payables | 79,452 | 83,362 |  |
Other long-term liabilities | 104,439 | 128,375 |  |
Long-term liabilities associated with discontinued operations | 396 | 1,044 |  |
Total liabilities | 1,207,591 | 1,199,382 |  |
Total equity | 1,643,975 | 1,369,197 |  |
Total liabilities and equity | $ 2,851,566 | $ 2,568,579 |  |

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