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Note 17 - Guarantor Subsidiaries (Details) - Condensed Consolidating Balance Sheets (USD $) In Thousands, unless otherwise specified | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010
--- | --- | --- | --- | ---
Assets |  |  |  |
Cash and cash equivalents | $ 212,175 | $ 190,984 | $ 266,463 | $ 283,606
Other current assets | 8,324 | 8,858 |  |
Properties, plants, and equipment - net | 1,791,601 | 996,659 |  |
Other non-current assets | 5,867 | 1,883 |  |
Total assets | 2,232,119 | 1,378,290 | 1,396,090 |
Liabilities and Stockholders' Equity |  |  |  |
Current liabilities | 151,479 | 94,987 |  |
Long-term debt | 490,726 |  |  |
Non-current deferred tax liability | 164,861 |  |  |
Other non-current liabilities | 37,536 | 40,047 |  |
Stockholders' equity | 1,326,419 | 1,137,951 | 1,140,113 | 962,253
Total liabilities and stockholders' equity | 2,232,119 | 1,378,290 |  |
Parent [Member] |  |  |  |
Assets |  |  |  |
Cash and cash equivalents | 126,271 | 132,266 | 97,850 | 190,000
Other current assets | 4,795 | 7,399 |  |
Properties, plants, and equipment - net | 803 |  |  |
Intercompany receivable (payable) | 547,074 | 113,234 |  |
Investments in subsidiaries | 1,176,293 | 918,526 |  |
Other non-current assets | 5,248 | 3,059 |  |
Total assets | 1,860,484 | 1,174,484 |  |
Liabilities and Stockholders' Equity |  |  |  |
Current liabilities | 10,058 | 3,726 |  |
Long-term debt | 490,726 |  |  |
Other non-current liabilities | 33,281 | 32,807 |  |
Stockholders' equity | 1,326,419 | 1,137,951 |  |
Total liabilities and stockholders' equity | 1,860,484 | 1,174,484 |  |
Guarantor Subsidiaries [Member] |  |  |  |
Assets |  |  |  |
Cash and cash equivalents | 40,009 | 57,075 | 168,433 | 93,125
Other current assets | 75,083 | 65,658 |  |
Properties, plants, and equipment - net | 1,052,102 | 991,476 |  |
Intercompany receivable (payable) | (131,599) | (64,893) |  |
Other non-current assets | 164,563 | 164,913 |  |
Total assets | 1,200,158 | 1,214,229 |  |
Liabilities and Stockholders' Equity |  |  |  |
Current liabilities | 117,422 | 121,221 |  |
Long-term debt | 14,292 | 11,875 |  |
Non-current portion of accrued reclamation | 38,426 | 92,825 |  |
Non-current deferred tax liability | 16,430 |  |  |
Other non-current liabilities | 4,043 | 8,651 |  |
Stockholders' equity | 1,009,545 | 979,657 |  |
Total liabilities and stockholders' equity | 1,200,158 | 1,214,229 |  |
Non-Guarantor Subsidiaries [Member] |  |  |  |
Assets |  |  |  |
Cash and cash equivalents | 45,895 | 1,643 | 180 | 481
Other current assets | 33,129 | 766 |  |
Properties, plants, and equipment - net | 738,696 | 5,183 |  |
Intercompany receivable (payable) | (464,634) | (74,450) |  |
Other non-current assets | 11,115 | 7,600 |  |
Total assets | 364,201 | (59,258) |  |
Liabilities and Stockholders' Equity |  |  |  |
Current liabilities | 24,000 | 1,016 |  |
Long-term debt | 40 | 60 |  |
Non-current portion of accrued reclamation | 8,340 | 545 |  |
Non-current deferred tax liability | 164,861 |  |  |
Other non-current liabilities | 212 | 252 |  |
Stockholders' equity | 166,748 | (61,131) |  |
Total liabilities and stockholders' equity | 364,201 | (59,258) |  |
Consolidation, Eliminations [Member] |  |  |  |
Assets |  |  |  |
Other current assets | 18,453 | 18,091 |  |
Intercompany receivable (payable) | 49,159 | 26,109 |  |
Investments in subsidiaries | (1,176,293) | (918,526) |  |
Other non-current assets | (84,043) | (76,839) |  |
Total assets | (1,192,724) | (951,165) |  |
Liabilities and Stockholders' Equity |  |  |  |
Current liabilities |  | (30,976) |  |
Non-current deferred tax liability | (16,431) |  |  |
Other non-current liabilities |  | (1,663) |  |
Stockholders' equity | (1,176,293) | (918,526) |  |
Total liabilities and stockholders' equity | (1,192,724) | (951,165) |  |
Consolidated [Member] |  |  |  |
Assets |  |  |  |
Cash and cash equivalents | 212,175 | 190,984 | 266,463 | 283,606
Other current assets | 131,460 | 91,914 |  |
Properties, plants, and equipment - net | 1,791,601 | 996,659 |  |
Other non-current assets | 96,883 | 98,733 |  |
Total assets | 2,232,119 | 1,378,290 |  |
Liabilities and Stockholders' Equity |  |  |  |
Current liabilities | 151,480 | 94,987 |  |
Long-term debt | 505,058 | 11,935 |  |
Non-current portion of accrued reclamation | 46,766 | 93,370 |  |
Non-current deferred tax liability | 164,860 |  |  |
Other non-current liabilities | 37,536 | 40,047 |  |
Stockholders' equity | 1,326,419 | 1,137,951 |  |
Total liabilities and stockholders' equity | $ 2,232,119 | $ 1,378,290 |  |

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