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Revision of Prior Period Amounts (Table) | 12 Months Ended
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Dec. 31, 2011
Disclosure Text Block |
Revision of prior period amounts |
Consolidated Balance Sheet -- December 31, 2010 |
|  |  |  | As previously |  |  |  |  |  |  |  |  |
| (Dollars in thousands) | reported (1) |  |  |  | Adjustment |  |  |  | Revised |
| Cash and cash equivalents | $ | 294,426 |  |  | $ | (17,511 | ) |  | $ | 276,915 |
| Total current assets |  | 1,109,624 |  |  |  | (17,511 | ) |  |  | 1,092,113 |
| Total assets |  | 5,893,060 |  |  |  | (17,511 | ) |  |  | 5,875,549 |
| Accounts payable - trade |  | 281,601 |  |  |  | (17,511 | ) |  |  | 264,090 |
| Total current liabilities |  | 665,995 |  |  |  | (17,511 | ) |  |  | 648,484 |
| Total liabilities and equity |  | 5,893,060 |  |  |  | (17,511 | ) |  |  | 5,875,549 |
Consolidated Statement of Cash Flows -- Year Ended December 31, 2010 |  |
|  |  |  | As previously |  |  |  |  |  |  |  |  |
| (Dollars in thousands) | reported (1) |  |  |  | Adjustment |  |  |  | Revised |
| Change in Accounts payable - trade | $ | (14,660 | ) |  | $ | (37,908 | ) |  | $ | (52,568 | )
| Change in Other assets and liabilities |  | 79,546 |  |  |  | (1,994 | ) |  |  | 77,552 |
| Cash flows from operating activities |  | 874,289 |  |  |  | (39,902 | ) |  |  | 834,387 |
| Cash used for additions to property, plant and equipment |  | (583,134 | ) |  |  | 13,811 |  |  |  | (569,323 | )
| Cash flows used in investing activities |  | (791,108 | ) |  |  | 13,811 |  |  |  | (777,297 | )
| Net increase (decrease) in cash |  | 15 |  |  |  | (26,091 | ) |  |  | (26,076 | )
|  | and cash equivalents |  |  |  |  |  |  |  |  |  |  |
Consolidated Statement of Cash Flows -- Year Ended December 31, 2009 |  |
|  |  |  | As previously |  |  |  |  |  |  |  |  |
| (Dollars in thousands) | reported (1) |  |  |  | Adjustment |  |  |  | Revised |
| Change in Accounts payable - trade | $ | 47,503 |  |  | $ | (11,308 | ) |  | $ | 36,195 |
| Change in Other assets and liabilities |  | (51,107 | ) |  |  | 1,309 |  |  |  | (49,798 | )
| Cash flows from operating activities |  | 881,808 |  |  |  | (9,999 | ) |  |  | 871,809 |
| Cash used for additions to property, plant and equipment |  | (546,758 | ) |  |  | 15,989 |  |  |  | (530,769 | )
| Cash flows used in investing activities |  | (561,451 | ) |  |  | 15,989 |  |  |  | (545,462 | )
| Net increase (decrease) in cash |  | 123,415 |  |  |  | 5,990 |  |  |  | 129,405 |
|  | and cash equivalents |  |  |  |  |  |  |  |  |  |  |
In Current Report on Form 8-K filed on November 16, 2011.

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- Definition Tabular disclosure of prior period adjustments to previously issued financial statements including (1) the effect of the correction on each financial statement line item and any per-share amounts affected for each prior period presented (2) the cumulative effect of the change on retained earnings or other appropriate components of equity or net assets in the statement of financial position, as of the beginning of the earliest period presented, and (3) the effect of the prior period adjustments (both gross and net of applicable income tax) on the net income of each prior period presented in the entity's annual report for the year in which the adjustments are made. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6801783&loc=d3e22658-107794 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=6801783&loc=d3e22663-107794 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 9 -Paragraph 26 -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 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 154 -Paragraph 26 -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 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=6801783&loc=d3e22644-107794 + Details
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