v2.4.0.6

Long-term debt (Details) |  |  |  |  |  | 12 Months Ended |  |  | 1 Months Ended |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 12 Months Ended |  |  |  |  | 12 Months Ended |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Dec. 31, 2012 USD ($) project | Dec. 31, 2011 USD ($) | Dec. 31, 2012 Curtis Palmer USD ($) | Dec. 31, 2011 Curtis Palmer USD ($) | Dec. 31, 2012 Epsilon Power Partners | Dec. 31, 2012 Chambers Project [Member] quarter | Dec. 31, 2012 Delta quarter | Dec. 31, 2012 Gregory Project [Member] | Dec. 31, 2011 Purchase accounting fair value adjustments USD ($) | Dec. 31, 2012 Minimum | Dec. 31, 2012 Maximum | Nov. 30, 2011 Senior unsecured notes, due 2018 USD ($) | Dec. 31, 2012 Senior unsecured notes, due 2018 USD ($) | Dec. 31, 2011 Senior unsecured notes, due 2018 USD ($) | Nov. 05, 2011 Senior unsecured notes, due 2018 USD ($) | Dec. 31, 2012 Senior unsecured notes, due June 2036 USD ($) | Dec. 31, 2012 Senior unsecured notes, due June 2036 CAD | Dec. 31, 2011 Senior unsecured notes, due June 2036 USD ($) | Dec. 31, 2012 Senior unsecured notes, due July 2014 USD ($) | Dec. 31, 2011 Senior unsecured notes, due July 2014 USD ($) | Dec. 31, 2012 Senior unsecured notes, due July 2014 Curtis Palmer USD ($) | Dec. 31, 2012 Series A senior unsecured notes, due August 2015 USD ($) | Dec. 31, 2011 Series A senior unsecured notes, due August 2015 USD ($) | Dec. 31, 2012 Series B senior unsecured notes, due August 2017 USD ($) | Dec. 31, 2011 Series B senior unsecured notes, due August 2017 USD ($) | Dec. 31, 2012 Epsilon Power Partners term facility, due 2019 USD ($) | Dec. 31, 2011 Epsilon Power Partners term facility, due 2019 USD ($) | Dec. 31, 2012 Auburndale term loan, due 2013 | Dec. 31, 2011 Auburndale term loan, due 2013 USD ($) | Dec. 31, 2012 Cadillac term loan, due 2025 USD ($) | Dec. 31, 2011 Cadillac term loan, due 2025 USD ($) | Dec. 31, 2012 Cadillac term loan, due 2025 Minimum | Dec. 31, 2012 Cadillac term loan, due 2025 Maximum | Dec. 31, 2012 Piedmont bridge loan, due 2013 USD ($) | Dec. 31, 2011 Piedmont bridge loan, due 2013 USD ($) | Dec. 31, 2012 Path 15 senior secured bonds USD ($) | Dec. 31, 2011 Path 15 senior secured bonds USD ($) | Dec. 31, 2012 Path 15 senior secured bonds Purchase accounting fair value adjustments USD ($) | Dec. 31, 2012 Path 15 senior secured bonds Minimum | Dec. 31, 2012 Path 15 senior secured bonds Maximum | Dec. 31, 2012 5.87% senior guaranteed notes, Series A, due August 15, 2017 | Dec. 31, 2012 5.97% senior guaranteed notes, Series B, due August 15, 2019 | Dec. 31, 2012 Senior credit facility USD ($) | Dec. 31, 2012 Senior credit facility Minimum | Dec. 31, 2012 Senior credit facility Maximum | Dec. 31, 2012 Senior unsecured notes, due August 2019 USD ($) | Dec. 31, 2012 Meadow Creek construction loan, due 2013 USD ($) | Dec. 31, 2012 Meadow Creek construction loan, due 2013 Minimum | Dec. 31, 2012 Meadow Creek construction loan, due 2013 Maximum | Dec. 31, 2012 Construction term loan USD ($) | Dec. 31, 2012 Cash grant loan USD ($) | Dec. 31, 2012 Rockland term loan, due 2031 USD ($) | Dec. 31, 2012 Ridgeline working capital loan USD ($) | Dec. 31, 2012 Ridgeline working capital loan Minimum | Dec. 31, 2012 Ridgeline working capital loan Maximum
Long-term debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total debt | $ 1,580,341,000 |  |  |  |  |  |  |  | $ 10,580,000 |  |  |  | $ 460,000,000 | $ 460,000,000 | $ 460,000,000 | $ 211,071,000 | 210,000,000 | $ 206,490,000 | $ 190,000,000 | $ 190,000,000 | $ 190,000,000 | $ 150,000,000 | $ 150,000,000 | $ 75,000,000 | $ 75,000,000 | $ 33,482,000 | $ 34,982,000 |  | $ 11,900,000 | $ 37,831,000 | $ 40,231,000 |  |  | $ 127,446,000 | $ 100,796,000 |  | $ 145,879,000 | $ 9,900,000 |  |  |  |  |  |  |  | $ 75,000,000 | $ 208,698,000 |  |  |  |  | $ 86,560,000 | $ 253,000 |  |
Less current maturities | (121,203,000) | (20,958,000) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3,000,000 | 1,500,000 |  | 7,000,000 | 2,400,000 | 3,791,000 |  |  | 55,061,000 |  | 9,400,000 | 8,667,000 |  |  |  |  |  |  |  |  |  | (59,508,000) |  |  |  |  |  |  |  |
Total long-term debt | 1,459,138,000 | 1,404,900,000 | 190,000,000 | 190,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 128,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate (as a percent) |  |  |  |  |  |  |  |  |  |  |  |  | 9.00% |  | 9.00% | 5.95% | 5.95% |  | 5.90% |  |  |  |  |  |  | 7.40% |  | 5.10% |  |  |  | 6.02% | 8.00% |  |  |  |  |  | 7.90% | 9.00% | 5.87% | 5.97% |  |  |  |  |  | 1.31% | 5.08% |  |  | 6.40% |  | 5.50% | 5.90%
Percentage of ownership interest |  |  |  |  | 100.00% | 40.00% |  |  |  | 5.00% | 50.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Variable interest rate basis |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Libor |  |  |  |  |  |  |  |  | U.S. Prime Rate, the London Interbank Offered Rate or the Canadian Prime Rate |  |  |  |  |  |  |  |  |  |  |  |
Amount drawn on the senior credit facility |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 67,000,000 |  |  |  |  |  |  |  |  |  |  |  |
Letters of credit issued but not drawn |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 112,900,000 |  |  |  |  |  |  |  |  |  |  |  |
Applicable margin (as a percent) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3.50% |  |  |  |  |  |  |  |  | 2.75% | 0.75% | 3.00% |  |  |  |  |  |  |  |  |  |
Bridge loan |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 51,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of days of commercial operation after stimulus grant is expected to be received |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 60 days |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Construction loan |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 82,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 152,200,000 | 56,500,000 |  |  |  |
Percentage of par value at which debt was issued |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 97.471% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gross proceeds from senior notes |  |  |  |  |  |  |  |  |  |  |  | 448,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of projects not in compliance with covenants contained in project level debt | 1 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of quarters used in calculating the debt service coverage ratio |  |  |  |  |  | 4 | 4 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Period of historical project cash flows used to calculate debt service coverage ratio |  |  |  |  |  |  |  | 6 months |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Period of projected project cash flows used to calculate debt service coverage ratio |  |  |  |  |  |  |  | 6 months |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maximum borrowing capacity before amendment |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 100,000,000 |  |  |  |  |  |  |  |  |  |  |  |
Maximum borrowing capacity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 300,000,000 |  |  |  |  |  |  |  |  |  |  |  |
Maximum capacity to be utilized for letter of credit |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 200,000,000 |  |  |  |  |  |  |  |  |  |  |  |
Debt to EBITDA ratio, restriction on payment of dividend to shareholders |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 7.25 |  |  |  |  |  |  |  |  |  |  |  |
Principal payments on the maturities of debt due in next five years |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2013 | 121,203,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2014 | 207,845,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2015 | 170,473,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2016 | 19,138,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2017 | 94,954,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Thereafter | 966,728,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total debt | $ 1,580,341,000 |  |  |  |  |  |  |  | $ 10,580,000 |  |  |  | $ 460,000,000 | $ 460,000,000 | $ 460,000,000 | $ 211,071,000 | 210,000,000 | $ 206,490,000 | $ 190,000,000 | $ 190,000,000 | $ 190,000,000 | $ 150,000,000 | $ 150,000,000 | $ 75,000,000 | $ 75,000,000 | $ 33,482,000 | $ 34,982,000 |  | $ 11,900,000 | $ 37,831,000 | $ 40,231,000 |  |  | $ 127,446,000 | $ 100,796,000 |  | $ 145,879,000 | $ 9,900,000 |  |  |  |  |  |  |  | $ 75,000,000 | $ 208,698,000 |  |  |  |  | $ 86,560,000 | $ 253,000 |  |

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- Definition Represents the period of historical project cash flows used in determining the debt service coverage ratio. + References No definition available. + Details
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- Definition Represents the period of projected project cash flows used in determining the debt service coverage ratio. + References No definition available. + Details
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- Definition Represents the debt to EBITDA ratio to be maintained by the entity. + References No definition available. + Details
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- Definition Represents the number of most recent quarters used for calculating the debt service coverage ratio. + References No definition available. + Details
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- Definition Represents the number of project not in compliance with the covenants contained in project-level debt. + References No definition available. + Details
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- Definition Represents the price of debt issued as a percentage of its par value. + References No definition available. + Details
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- Definition Represents the maximum borrowing capacity under the credit facility before the amendment. + References No definition available. + Details
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- Definition Represents the number of days of commercial operation after stimulus grant is expected to be received from the U.S. Treasury. + References No definition available. + Details
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- Definition Short-Term financing which is expected to be paid back relatively quickly, such as by a subsequent longer-term loan. Also called swing loan or bridge financing. + References Reference 1: 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(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 16 -Article 7 + Details
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- Definition This element represents the carrying value of a short-term real estate loan to finance building costs. The funds are disbursed as needed or in accordance with a prearranged plan; generally, a portion of the funds is disbursed at inception and the remainder as construction progresses. The money is repaid on completion of the project, usually from the proceeds of a mortgage loan. The rate is normally higher than the prime rate, and there is usually an origination fee. The effective yield on these loans tends to be high, and the lender has a security interest in the real property. Note that there are separate concepts for the current and noncurrent portions of long-term construction loans. + References Reference 1: 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(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Audit and Accounting Guide (AAG) -Number AAG-DEP -Paragraph 52 -IssueDate 2006-05-01 -Chapter 8 -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 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 20 -Article 5 + Details
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- Definition The percentage points added to the reference rate to compute the variable rate on the debt instrument. + References No definition available. + Details
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- Definition The reference rate for the variable rate of the debt instrument, such as LIBOR or the US Treasury rate and the maturity of the reference rate used, such as three months or six months LIBOR. + References No definition available. + Details
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- Definition Interest rate stated in the contractual debt agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 159 -Paragraph 18 -Subparagraph f -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 323 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=6382943&loc=d3e33918-111571 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 18 -Paragraph 20 -Subparagraph a (1) -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 total amount of the contingent obligation under letters of credit outstanding as of the reporting date. + References No definition available. + Details
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- Definition Amount borrowed under the credit facility as of the balance sheet date. + References Reference 1: 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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- Definition The maximum amount of borrowing capacity under a line of credit that is available as of the balance sheet date for a specific purpose other than for financing goods acquired for inventory or imminent delivery to a customer. + References No definition available. + Details
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- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 129 -Paragraph 2, 4 -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 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 3: 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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