v2.4.0.6

Other Assets (Schedule Of Other Assets) (Details) (USD $) In Thousands, unless otherwise specified | 12 Months Ended |
--- | --- | ---
Dec. 31, 2011 years | Dec. 31, 2010
Other Assets [Line Items] |  |
Goodwill, Cost | $ 29,990 | $ 29,990
Goodwill, Accumulated Amortization |  |
Goodwill, Net | 29,990 | 29,990
Other intangible assets, Cost | 1,161 | 1,161
Other intangible assets, Accumulated Amortization |  |
Other intangible assets, Net | 1,161 | 1,161
Cost | 262,484 | 226,321
Accumulated Amortization | (126,909) | (115,073)
Net | 135,575 | 111,248
Intangible Assets [Member] |  |
Other Assets [Line Items] |  |
Cost | 100,130 | 100,065
Accumulated Amortization | (51,067) | (47,962)
Net | 49,063 | 52,103
Available-For-Sale Investments [Member] |  |
Other Assets [Line Items] |  |
Cost | 30,113 |
Accumulated Amortization |  |
Net | 30,113 |
Notes Receivable From Affiliate [Member] |  |
Other Assets [Line Items] |  |
Cost | 2,383 | 3,575
Accumulated Amortization |  |
Net | 2,383 | 3,575
Turnaround Costs [Member] |  |
Other Assets [Line Items] |  |
Cost | 86,728 | 85,307
Accumulated Amortization | (57,175) | (49,864)
Net | 29,553 | 35,443
Intangible asset, Weighted Average Life (in years) | 5 |
Debt Issuance Costs [Member] |  |
Other Assets [Line Items] |  |
Cost | 20,628 | 17,930
Accumulated Amortization | (8,989) | (7,307)
Net | 11,639 | 10,623
Intangible asset, Weighted Average Life (in years) | 10 |
Other, Net [Member] |  |
Other Assets [Line Items] |  |
Cost | 22,502 | 19,444
Accumulated Amortization | (9,678) | (9,940)
Net | 12,824 | 9,504
Intangible asset, Weighted Average Life (in years) | 5 |
Technology Licenses [Member] |  |
Other Assets [Line Items] |  |
Intangible assets, Cost | 44,827 | 44,762
Intangible assets, Accumulated Amortization | (40,860) | (39,763)
Intangible assets, Net | 3,967 | 4,999
Intangible asset, Weighted Average Life (in years) | 12 |
Patents [Member] |  |
Other Assets [Line Items] |  |
Intangible assets, Cost | 6,503 | 6,503
Intangible assets, Accumulated Amortization | (3,306) | (2,655)
Intangible assets, Net | 3,197 | 3,848
Intangible asset, Weighted Average Life (in years) | 10 |
Customer Relationships [Member] |  |
Other Assets [Line Items] |  |
Intangible assets, Cost | 17,649 | 17,649
Intangible assets, Accumulated Amortization | (6,901) | (5,544)
Intangible assets, Net | $ 10,748 | $ 12,105
Intangible asset, Weighted Average Life (in years) | 13 |

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