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Debt (Tables) | 3 Months Ended
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Mar. 31, 2014
Debt Disclosure [Abstract] |
Schedule of Debt |
| March 31, 2014 | December 31, 2013
Debt classified as current liabilities: |  |
Hancock County industrial revenue bonds ("IRBs") due 2028, interest payable quarterly (variable interest rates (not to exceed 12%)) (1) | $ | 7,815 |  | $ | 7,815 |
7.5% senior unsecured notes payable due August 15, 2014, interest payable semiannually (2) | 2,603 |  | 2,603 |
Iceland revolving credit facility (2)(3) | — |  | 6,000 |
Debt classified as non-current liabilities: |  |
7.5% senior secured notes payable due June 1, 2021, net of debt discount of $3,385 and $3,472, respectively, interest payable semiannually | 246,615 |  | 246,528 |
TOTAL | $ | 257,033 |  | $ | 262,946 |
(1) | The IRBs are classified as current liabilities because they are remarketed weekly and could be required to be repaid upon demand if there is a failed remarketing. The IRB interest rate at March 31, 2014 was 0.26%.
(2) | These items are recorded in Accrued and other current liabilities based on the repayment terms and expected maturity.
(3) | Borrowings under the Iceland revolving credit facility bear variable interest based on LIBOR plus the applicable margin per annum. The interest rate at December 31, 2013 was 3.92%.
Schedule of Line of Credit Facilities | Status of our Iceland revolving credit facility:
| March 31, 2014
Credit Facility maximum amount | $ | 50,000 |
Borrowing availability | 50,000 |
Outstanding borrowings | — |
Status of our U.S. revolving credit facility:
| March 31, 2014
Credit facility maximum amount | $ | 150,000 |
Borrowing availability, net of outstanding letters of credit | 79,455 |
Outstanding borrowings | — |
Letter of credit sub-facility amount | 80,000 |
Outstanding letters of credit issued | 70,545 |
Offsetting of financial instruments and derivatives | The following table provides information about the balance sheet location and gross amounts offset:
Offsetting of financial instruments and derivatives |  |  |
| Balance sheet location | March 31, 2014 | December 31, 2013
E.ON contingent obligation – principal | Other liabilities | $ | (12,902 | ) | $ | (12,902 | )
E.ON contingent obligation – accrued interest | Other liabilities | (4,231 | ) | (3,879 | )
E.ON contingent obligation – derivative asset | Other liabilities | 17,133 |  | 16,781 |
|  | $ | — |  | $ | — |

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- Definition Tabular disclosure of derivative and other financial liabilities that are subject to offsetting, including master netting arrangements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=20225523&loc=SL20225877-175312 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=20225523&loc=SL20225862-175312 + Details
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- Definition Tabular disclosure of information pertaining to short-term and long-debt instruments or arrangements, including but not limited to identification of terms, features, collateral requirements and other information necessary to a fair presentation. + References No definition available. + Details
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- Definition Tabular disclosure of short-term or long-term contractual arrangements with lenders, including letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(e),(f)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph f -Article 4 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
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