v2.4.0.6

Fair Value Measurements (Schedule Of Carrying And Fair Values Of Long-Term Debt) (Details) (USD $) In Thousands, unless otherwise specified | 12 Months Ended | 1 Months Ended | 12 Months Ended |  |  | 12 Months Ended |  | 12 Months Ended |  | 12 Months Ended |  | 12 Months Ended |  | 1 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Dec. 31, 2011 | Jan. 31, 2006 6 5/8% Senior Notes Due 2016 [Member] | Dec. 31, 2011 6 5/8% Senior Notes Due 2016 [Member] | Dec. 31, 2010 6 5/8% Senior Notes Due 2016 [Member] | Jan. 13, 2006 6 5/8% Senior Notes Due 2016 [Member] | Dec. 31, 2011 GO Zone 6 1/2% Senior Notes Due 2029 [Member] | Dec. 31, 2010 GO Zone 6 1/2% Senior Notes Due 2029 [Member] | Dec. 31, 2011 GO Zone 6 3/4% Senior Notes Due 2032 [Member] | Dec. 31, 2010 GO Zone 6 3/4% Senior Notes Due 2032 [Member] | Dec. 31, 2011 GO Zone 6 1/2% Tax-Exempt Revenue Bonds Due 2035 [Member] | Dec. 31, 2010 GO Zone 6 1/2% Tax-Exempt Revenue Bonds Due 2035 [Member] | Dec. 31, 2011 IKE Zone 6 1/2% Tax-Exempt Revenue Bonds Due 2035 [Member] | Dec. 31, 2010 IKE Zone 6 1/2% Tax-Exempt Revenue Bonds Due 2035 [Member] | Dec. 31, 1997 Waste Disposal Revenue Bonds Due 2027 [Member] | Dec. 31, 2011 Waste Disposal Revenue Bonds Due 2027 [Member] | Dec. 31, 2010 Waste Disposal Revenue Bonds Due 2027 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Senior Notes, Carrying Value |  |  | $ 249,674 | $ 249,593 |  | $ 100,000 | $ 100,000 | $ 250,000 | $ 250,000 | $ 89,000 | $ 89,000 | $ 65,000 | $ 65,000 |  |  |
Senior Notes, Fair Value |  |  | 254,890 | 258,438 |  | 108,834 | 99,875 | 263,988 | 251,925 | 93,090 | 88,653 | 67,987 | 64,905 |  |  |
Loans, Carrying Value |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 10,889 | 10,889
Loans, Fair Value |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 10,889 | $ 10,889
Stated interest rate |  |  | 6.625% | 6.625% | 6.625% | 6.50% | 6.50% | 6.75% | 6.75% | 6.50% | 6.50% | 6.50% | 6.50% |  |  |
Maturity date | 2016 | 2016 | 2016 |  |  | 2029 |  | 2032 |  | 2035 |  | 2035 |  | December 2027 | 2027 |

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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 Including the current and noncurrent portions, aggregate carrying value as of the balance sheet date of loans payable (with maturities initially due after one year or beyond the operating cycle if longer). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 20, 22 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16(a)(2)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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- Definition This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. Fair value of Loans Payable at the balance sheet date. + References No definition available. + Details
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- Definition This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents notes payable as of the balance sheet date. + 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 SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 20, 22 -Article 5 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 210.5-02.19,20,22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Including the current and noncurrent portions, carrying value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer). Senior note holders are paid off in full before any payments are made to junior note holders. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 16 -Article 9 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16(a)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
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