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Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified | 6 Months Ended
--- | ---
Jun. 30, 2012 | Jun. 30, 2011
Cash flows from continuing operating activities |  |
Net income | $ 40,336 | $ 49,548
Adjustments to reconcile net income to net cash provided by continuing operating activities: |  |
Net loss from discontinued operations | 118 | 110
Deferred income taxes | 2,539 | 1,566
Losses on extinguishment of debt |  | 136
Expense associated with modification of secured term loan |  | 387
Expense associated with induced conversion of 5.5% convertible debentures |  | 558
Net gain on carbon credits |  | (94)
Losses on sales and disposals of property and equipment | 551 | 895
Depreciation of property, plant and equipment | 10,079 | 9,184
Amortization | 170 | 267
Stock-based compensation | 829 | 519
Provisions for losses on accounts receivable | 123 | 121
Provisions for losses on inventory | 44 | 279
Equity in losses (earnings) of affiliate | (341) | (207)
Distributions received from affiliate | 855 | 825
Changes in fair value of commodities contracts | 208 | 52
Changes in fair value of interest rate contracts | (226) | 240
Cash provided (used) by changes in assets and liabilities (net of effects of discontinued operations): |  |
Accounts receivable | 2,305 | (27,549)
Inventories | 1,262 | 226
Other supplies, prepaid items and other | 3,087 | (1,256)
Accounts payable | (10,476) | (1,356)
Accrued payroll and benefits | (935) | (835)
Accrued and prepaid income taxes | 7,375 | 1,791
Accrued contractual profit-sharing obligation | (1,451) | 1,637
Deferred revenue on product sales | 17 | 1,472
Customer deposits | (3,162) | 1,399
Other current and noncurrent liabilities | 3,215 | 1,248
Net cash provided by continuing operating activities | 56,522 | 41,163
Cash flows from continuing investing activities |  |
Capital expenditures | (32,455) | (14,556)
Proceeds from sales of property and equipment | 203 | 31
Proceeds from short-term investments | 10,022 | 10,012
Purchase of short-term investments | (10,021) | (9)
Deposits of restricted cash | (208) | (52)
Proceeds from sales of carbon credits |  | 1,665
Payments on contractual obligations - carbon credits | (180) | (1,573)
Other assets | (221) | (914)
Net cash used by continuing investing activities | (32,860) | (5,396)
Cash flows from continuing financing activities |  |
Proceeds from revolving debt facility | 209,238 | 329,797
Payments on revolving debt facility | (209,238) | (329,797)
Proceeds from modification of secured term loan, net of fees |  | 10,347
Proceeds from secured term loan, net of fees |  | 14,766
Payments associated with induced conversion of 5.5% convertible debentures |  | (558)
Payments on other long-term debt | (4,645) | (10,484)
Payments on loans secured by cash value of life insurance policies | (1,918) |
Payments of debt issuance costs | (88) | (108)
Payments on short-term financing | (3,376) | (2,284)
Proceeds from exercise of stock options | 333 | 940
Excess income tax benefit associated with stock-based compensation | 223 | 1,109
Acquisition of redeemable preferred stock | (39) |
Dividends paid on preferred stocks | (300) | (305)
Net cash provided (used) by continuing financing activities | (9,810) | 13,423
Cash flows of discontinued operations: |  |
Operating cash flows | (82) | (138)
Net increase in cash and cash equivalents | 13,770 | 49,052
Cash and cash equivalents at beginning of period | 124,929 | 66,946
Cash and cash equivalents at end of period | 138,699 | 115,998
Supplemental cash flow information: |  |
Cash payments for income taxes, net of refunds | 13,057 | 24,619
Noncash investing and financing activities: |  |
Insurance claims receivable associated with property, plant and equipment | 10,364 |
Other assets and accounts payable associated with property, plant and equipment | 9,418 | 5,662
Debt issuance costs incurred associated with secured term loan |  | 835
Debt issuance costs written off associated with 5.5% debentures |  | 328
Accrued liabilities extinguished associated with 5.5% debentures |  | 336
5.5% debentures converted to common stock |  | $ 24,400

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- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 19 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04.22) -URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Other Comprehensive Income -URI http://asc.fasb.org/extlink&oid=6519514 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.18) -URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 130 -Paragraph 10, 15 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 20 -Article 9 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Net Income -URI http://asc.fasb.org/extlink&oid=6518256 Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Emerging Issues Task Force (EITF) -Number 87-21 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 10: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28, 29, 30 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 11: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3602-108585 Reference 12: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04.19) -URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913 Reference 13: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=20435746&loc=d3e565-108580 Reference 14: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph A7 -Appendix A Reference 15: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph a -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 16: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph d -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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- Definition The cash outflow for a borrowing having initial term of repayment within one year or the normal operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 18 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3291-108585 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 20 -Subparagraph b -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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- Definition The net change in the difference between the fair value and the carrying value, or in the comparative fair values, of open agreements to purchase or sell mineral resources, energy, and agricultural products at some future point held at each balance sheet date, that was included in earnings for the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3602-108585 + Details
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