v2.4.0.6

Guarantor Disclosures (Condensed Consolidating Financial Information Statement Of Operations) (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2011 | Sep. 30, 2011 | Jun. 30, 2011 | Mar. 31, 2011 | Dec. 31, 2010 | Sep. 30, 2010 | Jun. 30, 2010 | Mar. 31, 2010 | Dec. 31, 2011 | Dec. 31, 2010 | Dec. 31, 2009
Condensed Financial Statements, Captions [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net sales | $ 859,175 | $ 968,372 | $ 925,049 | $ 867,252 | $ 795,387 |  | $ 779,677 |  | $ 818,389 |  | $ 778,334 |  | $ 3,619,848 | [1] | $ 3,171,787 | [1] | $ 2,325,723 | [1]
Cost of sales |  |  |  |  |  |  |  |  |  |  |  |  | 3,060,842 |  | 2,689,104 |  | 2,130,595 |
Gross profit | 77,260 | 147,067 | 167,095 | 167,584 | 164,124 |  | 134,855 |  | 126,024 |  | 57,680 |  | 559,006 |  | 482,683 |  | 195,128 |
Selling, general and administrative expenses |  |  |  |  |  |  |  |  |  |  |  |  | 112,210 |  | 104,319 |  | 87,871 |
Income from operations | 50,459 | 117,331 | 138,369 | 140,637 | 137,052 |  | 107,346 |  | 99,537 |  | 34,429 |  | 446,796 |  | 378,364 |  | 107,257 |
Interest expense |  |  |  |  |  |  |  |  |  |  |  |  | (50,992) |  | (39,875) |  | (34,957) |
Other income, (expense), net |  |  |  |  |  |  |  |  |  |  |  |  | 5,628 |  | 4,471 |  | 6,453 |
Income before income taxes |  |  |  |  |  |  |  |  |  |  |  |  | 401,432 |  | 342,960 |  | 78,753 |
(Benefit from) provision for income taxes |  |  |  |  |  |  |  |  |  |  |  |  | 142,466 |  | 121,567 |  | 25,758 |
Equity in net income of subsidiaries |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income | 26,443 | 67,930 | 81,049 | 83,544 | 84,073 | [2] | 62,731 | [2] | 56,942 | [2] | 17,647 | [2] | 258,966 |  | 221,393 |  | 52,995 |
Westlake Chemical Corporation [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cost of sales |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gross profit |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Selling, general and administrative expenses |  |  |  |  |  |  |  |  |  |  |  |  | 3,762 |  | 4,257 |  | 4,185 |
Income from operations |  |  |  |  |  |  |  |  |  |  |  |  | (3,762) |  | (4,257) |  | (4,185) |
Interest expense |  |  |  |  |  |  |  |  |  |  |  |  | (50,919) |  | (39,829) |  | (34,864) |
Other income, (expense), net |  |  |  |  |  |  |  |  |  |  |  |  | 10,217 |  | 15,045 |  | 14,843 |
Income before income taxes |  |  |  |  |  |  |  |  |  |  |  |  | (44,464) |  | (29,041) |  | (24,206) |
(Benefit from) provision for income taxes |  |  |  |  |  |  |  |  |  |  |  |  | (11,835) |  | (2,471) |  | (6,314) |
Equity in net income of subsidiaries |  |  |  |  |  |  |  |  |  |  |  |  | 291,595 |  | 247,963 |  | 70,887 |
Net income |  |  |  |  |  |  |  |  |  |  |  |  | 258,966 |  | 221,393 |  | 52,995 |
Guarantor Subsidiaries [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  |  |  |  |  | 3,581,470 |  | 3,130,513 |  | 2,289,953 |
Cost of sales |  |  |  |  |  |  |  |  |  |  |  |  | 3,024,419 |  | 2,653,234 |  | 2,099,795 |
Gross profit |  |  |  |  |  |  |  |  |  |  |  |  | 557,051 |  | 477,279 |  | 190,158 |
Selling, general and administrative expenses |  |  |  |  |  |  |  |  |  |  |  |  | 102,989 |  | 95,441 |  | 80,213 |
Income from operations |  |  |  |  |  |  |  |  |  |  |  |  | 454,062 |  | 381,838 |  | 109,945 |
Interest expense |  |  |  |  |  |  |  |  |  |  |  |  | (73) |  | (46) |  | (93) |
Other income, (expense), net |  |  |  |  |  |  |  |  |  |  |  |  | (4,212) |  | (12,715) |  | (12,981) |
Income before income taxes |  |  |  |  |  |  |  |  |  |  |  |  | 449,777 |  | 369,077 |  | 96,871 |
(Benefit from) provision for income taxes |  |  |  |  |  |  |  |  |  |  |  |  | 155,313 |  | 122,541 |  | 31,620 |
Equity in net income of subsidiaries |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income |  |  |  |  |  |  |  |  |  |  |  |  | 294,464 |  | 246,536 |  | 65,251 |
Non-Guarantor Subsidiaries [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  |  |  |  |  | 42,202 |  | 44,006 |  | 38,980 |
Cost of sales |  |  |  |  |  |  |  |  |  |  |  |  | 40,247 |  | 38,602 |  | 34,010 |
Gross profit |  |  |  |  |  |  |  |  |  |  |  |  | 1,955 |  | 5,404 |  | 4,970 |
Selling, general and administrative expenses |  |  |  |  |  |  |  |  |  |  |  |  | 5,459 |  | 4,621 |  | 3,473 |
Income from operations |  |  |  |  |  |  |  |  |  |  |  |  | (3,504) |  | 783 |  | 1,497 |
Interest expense |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other income, (expense), net |  |  |  |  |  |  |  |  |  |  |  |  | (377) |  | 2,141 |  | 4,591 |
Income before income taxes |  |  |  |  |  |  |  |  |  |  |  |  | (3,881) |  | 2,924 |  | 6,088 |
(Benefit from) provision for income taxes |  |  |  |  |  |  |  |  |  |  |  |  | (1,012) |  | 1,497 |  | 452 |
Equity in net income of subsidiaries |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income |  |  |  |  |  |  |  |  |  |  |  |  | (2,869) |  | 1,427 |  | 5,636 |
Eliminations [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  |  |  |  |  | (3,824) |  | (2,732) |  | (3,210) |
Cost of sales |  |  |  |  |  |  |  |  |  |  |  |  | (3,824) |  | (2,732) |  | (3,210) |
Gross profit |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Selling, general and administrative expenses |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income from operations |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest expense |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other income, (expense), net |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income before income taxes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
(Benefit from) provision for income taxes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity in net income of subsidiaries |  |  |  |  |  |  |  |  |  |  |  |  | (291,595) |  | (247,963) |  | (70,887) |
Net income |  |  |  |  |  |  |  |  |  |  |  |  | $ (291,595) |  | $ (247,963) |  | $ (70,887) |
[1] | Revenues are attributed to countries based on location of customer.
[2] | Basic and diluted earnings per common share ("EPS") for each quarter is computed using the weighted average shares outstanding during that quarter, while EPS for the year is computed using the weighted average shares outstanding for the year. As a result, the sum of the EPS for each of the four quarters may not equal the EPS for the year.

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