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Note 13 - Guarantor Subsidiaries (Details) - Condensed Consolidating Balance Sheets (USD $) In Thousands, unless otherwise specified | Sep. 30, 2014 | Dec. 31, 2013 | Sep. 30, 2013 | Dec. 31, 2012
--- | --- | --- | --- | ---
Assets |  |  |  |
Cash and cash equivalents | $ 222,360 | $ 212,175 | $ 237,836 | $ 190,984
Other current assets | 7,516 | 8,324 |  |
Properties, plants, and equipment - net | 1,829,500 | 1,791,601 |  |
Other non-current assets | 3,440 | 5,867 |  |
Total assets | 2,252,453 | 2,232,119 |  |
Liabilities and Shareholders' Equity |  |  |  |
Current liabilities | 101,042 | 151,479 |  |
Long-term debt | 498,183 | 490,726 |  |
Non-current deferred tax liability | 156,712 | 164,861 |  |
Other non-current liabilities | 42,466 | 37,536 |  |
Stockholders' equity | 1,386,367 | 1,326,419 |  |
Total liabilities and stockholders' equity | 2,252,453 | 2,232,119 |  |
Consolidation, Eliminations [Member] |  |  |  |
Assets |  |  |  |
Other current assets | 12,109 | 18,453 |  |
Intercompany receivable (payable) | 50,059 | 49,159 |  |
Investments in subsidiaries | (1,275,038) | (1,195,076) |  |
Other non-current assets | (87,853) | (84,044) |  |
Total assets | (1,300,723) | (1,211,508) |  |
Liabilities and Shareholders' Equity |  |  |  |
Current liabilities | (11,785) |  |  |
Non-current deferred tax liability | (13,900) | (16,430) |  |
Stockholders' equity | (1,275,038) | (1,195,078) |  |
Total liabilities and stockholders' equity | (1,300,723) | (1,211,508) |  |
Consolidated [Member] |  |  |  |
Assets |  |  |  |
Cash and cash equivalents | 222,360 | 212,175 |  |
Other current assets | 96,079 | 131,460 |  |
Properties, plants, and equipment - net | 1,829,500 | 1,791,601 |  |
Other non-current assets | 104,514 | 96,883 |  |
Total assets | 2,252,453 | 2,232,119 |  |
Liabilities and Shareholders' Equity |  |  |  |
Current liabilities | 101,042 | 151,479 |  |
Long-term debt | 509,073 | 505,058 |  |
Non-current portion of accrued reclamation | 56,793 | 46,766 |  |
Non-current deferred tax liability | 156,712 | 164,861 |  |
Other non-current liabilities | 42,466 | 37,536 |  |
Stockholders' equity | 1,386,367 | 1,326,419 |  |
Total liabilities and stockholders' equity | 2,252,453 | 2,232,119 |  |
Parent Company [Member] |  |  |  |
Assets |  |  |  |
Cash and cash equivalents | 151,739 | 126,271 | 116,255 | 132,266
Other current assets | 3,032 | 4,795 |  |
Properties, plants, and equipment - net | 1,446 | 803 |  |
Intercompany receivable (payable) | 510,942 | 528,290 |  |
Investments in subsidiaries | 1,275,038 | 1,195,076 |  |
Other non-current assets | 2,726 | 5,249 |  |
Total assets | 1,944,923 | 1,860,484 |  |
Liabilities and Shareholders' Equity |  |  |  |
Current liabilities | 26,620 | 10,058 |  |
Long-term debt | 498,183 | 490,726 |  |
Other non-current liabilities | 33,753 | 33,281 |  |
Stockholders' equity | 1,386,367 | 1,326,419 |  |
Total liabilities and stockholders' equity | 1,944,923 | 1,860,484 |  |
Guarantor Subsidiaries [Member] |  |  |  |
Assets |  |  |  |
Cash and cash equivalents | 48,205 | 40,009 | 29,864 | 57,970
Other current assets | 55,060 | 75,083 |  |
Properties, plants, and equipment - net | 1,076,560 | 1,052,102 |  |
Intercompany receivable (payable) | (116,857) | (112,815) |  |
Other non-current assets | 183,249 | 164,563 |  |
Total assets | 1,246,217 | 1,218,942 |  |
Liabilities and Shareholders' Equity |  |  |  |
Current liabilities | 63,603 | 117,421 |  |
Long-term debt | 10,864 | 14,292 |  |
Non-current portion of accrued reclamation | 48,224 | 38,426 |  |
Non-current deferred tax liability | 13,100 | 16,430 |  |
Other non-current liabilities | 9,764 | 4,043 |  |
Stockholders' equity | 1,100,662 | 1,028,330 |  |
Total liabilities and stockholders' equity | 1,246,217 | 1,218,942 |  |
Non-Guarantor Subsidiaries [Member] |  |  |  |
Assets |  |  |  |
Cash and cash equivalents | 22,416 | 45,895 | 91,717 | 748
Other current assets | 25,878 | 33,129 |  |
Properties, plants, and equipment - net | 751,494 | 738,696 |  |
Intercompany receivable (payable) | (444,144) | (464,634) |  |
Other non-current assets | 6,392 | 11,115 |  |
Total assets | 362,036 | 364,201 |  |
Liabilities and Shareholders' Equity |  |  |  |
Current liabilities | 22,604 | 24,000 |  |
Long-term debt | 26 | 40 |  |
Non-current portion of accrued reclamation | 8,569 | 8,340 |  |
Non-current deferred tax liability | 157,512 | 164,861 |  |
Other non-current liabilities | (1,051) | 212 |  |
Stockholders' equity | 174,376 | 166,748 |  |
Total liabilities and stockholders' equity | $ 362,036 | $ 364,201 |  |

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