v2.4.0.6

Guarantor Disclosures | 12 Months Ended
--- | ---
Dec. 31, 2011
Guarantor Disclosures [Abstract] |
Guarantor Disclosures | 21. Guarantor Disclosures The Company's payment obligations under the Company's 6 5/8% senior notes due 2016 is fully and unconditionally guaranteed by each of its current and future domestic restricted subsidiaries that guarantee other debt of the Company or of another guarantor of the senior notes in excess of $5,000 (the "Guarantor Subsidiaries"). Each Guarantor Subsidiary is 100% owned by Westlake Chemical Corporation. These guarantees are the joint and several obligations of the Guarantor Subsidiaries. The following condensed consolidating financial information presents the financial condition, results of operations and cash flows of Westlake Chemical Corporation, the Guarantor Subsidiaries and the remaining subsidiaries that do not guarantee the notes (the "Non-Guarantor Subsidiaries"), together with consolidating adjustments necessary to present the Company's results on a consolidated basis. Condensed Consolidating Financial Information as of December 31, 2011
|  | Westlake Chemical Corporation |  |  | Guarantor Subsidiaries |  |  | Non-Guarantor Subsidiaries |  |  | Eliminations |  |  | Consolidated |
Balance Sheet |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Current assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash and cash equivalents |  | $ | 803,320 |  |  | $ | 2,517 |  |  | $ | 20,064 |  |  | $ | — |  |  | $ | 825,901 |
Accounts receivable, net |  |  | — |  |  |  | 1,384,705 |  |  |  | 949 |  |  |  | (978,282 | ) |  |  | 407,372 |
Inventories |  |  | — |  |  |  | 478,229 |  |  |  | 12,548 |  |  |  | — |  |  |  | 490,777 |
Prepaid expenses and other current assets |  |  | 363 |  |  |  | 10,332 |  |  |  | 1,800 |  |  |  | — |  |  |  | 12,495 |
Deferred income taxes |  |  | 430 |  |  |  | 19,049 |  |  |  | 132 |  |  |  | — |  |  |  | 19,611 |
Total current assets |  |  | 804,113 |  |  |  | 1,894,832 |  |  |  | 35,493 |  |  |  | (978,282 | ) |  |  | 1,756,156 |
Property, plant and equipment, net |  |  | — |  |  |  | 1,223,073 |  |  |  | 8,993 |  |  |  | — |  |  |  | 1,232,066 |
Equity investments |  |  | 2,597,598 |  |  |  | 53,912 |  |  |  | 35,650 |  |  |  | (2,640,419 | ) |  |  | 46,741 |
Restricted cash |  |  | 96,283 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 96,283 |
Other assets, net |  |  | 17,650 |  |  |  | 132,968 |  |  |  | 2,467 |  |  |  | (17,510 | ) |  |  | 135,575 |
Total assets |  | $ | 3,515,644 |  |  | $ | 3,304,785 |  |  | $ | 82,603 |  |  | $ | (3,636,211 | ) |  | $ | 3,266,821 |
Current liabilities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Accounts payable |  | $ | 1,005,529 |  |  | $ | 210,476 |  |  | $ | 3,748 |  |  | $ | (992,719 | ) |  | $ | 227,034 |
Accrued liabilities |  |  | 76 |  |  |  | 120,656 |  |  |  | 2,392 |  |  |  | 14,437 |  |  |  | 137,561 |
Total current liabilities |  |  | 1,005,605 |  |  |  | 331,132 |  |  |  | 6,140 |  |  |  | (978,282 | ) |  |  | 364,595 |
Long-term debt |  |  | 753,674 |  |  |  | 10,889 |  |  |  | 11,500 |  |  |  | (11,500 | ) |  |  | 764,563 |
Deferred income taxes |  |  | — |  |  |  | 336,165 |  |  |  | 636 |  |  |  | (6,010 | ) |  |  | 330,791 |
Other liabilities |  |  | 53 |  |  |  | 50,458 |  |  |  | 49 |  |  |  | — |  |  |  | 50,560 |
Stockholders' equity |  |  | 1,756,312 |  |  |  | 2,576,141 |  |  |  | 64,278 |  |  |  | (2,640,419 | ) |  |  | 1,756,312 |
Total liabilities and stockholders' equity |  | $ | 3,515,644 |  |  | $ | 3,304,785 |  |  | $ | 82,603 |  |  | $ | (3,636,211 | ) |  | $ | 3,266,821 |
Condensed Consolidating Financial Information as of December 31, 2010
|  | Westlake Chemical Corporation |  |  | Guarantor Subsidiaries |  |  | Non-Guarantor Subsidiaries |  |  | Eliminations |  |  | Consolidated |
Balance Sheet |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Current assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash and cash equivalents |  | $ | 611,158 |  |  | $ | 53 |  |  | $ | 19,088 |  |  | $ | — |  |  | $ | 630,299 |
Accounts receivable, net |  |  | 128,628 |  |  |  | 1,302,314 |  |  |  | 2,086 |  |  |  | (1,070,165 | ) |  |  | 362,863 |
Inventories |  |  | — |  |  |  | 437,130 |  |  |  | 12,898 |  |  |  | — |  |  |  | 450,028 |
Prepaid expenses and other current assets |  |  | 162 |  |  |  | 13,763 |  |  |  | 1,557 |  |  |  | — |  |  |  | 15,482 |
Deferred income taxes |  |  | 357 |  |  |  | 16,771 |  |  |  | 160 |  |  |  | — |  |  |  | 17,288 |
Total current assets |  |  | 740,305 |  |  |  | 1,770,031 |  |  |  | 35,789 |  |  |  | (1,070,165 | ) |  |  | 1,475,960 |
Property, plant and equipment, net |  |  | — |  |  |  | 1,159,051 |  |  |  | 11,283 |  |  |  | — |  |  |  | 1,170,334 |
Equity investments |  |  | 2,320,094 |  |  |  | 53,274 |  |  |  | 35,588 |  |  |  | (2,362,642 | ) |  |  | 46,314 |
Restricted cash |  |  | 150,288 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 150,288 |
Other assets, net |  |  | 16,897 |  |  |  | 108,352 |  |  |  | 3,769 |  |  |  | (17,770 | ) |  |  | 111,248 |
Total assets |  | $ | 3,227,584 |  |  | $ | 3,090,708 |  |  | $ | 86,429 |  |  | $ | (3,450,577 | ) |  | $ | 2,954,144 |
Current liabilities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Accounts payable |  | $ | 952,000 |  |  | $ | 189,852 |  |  | $ | 4,541 |  |  | $ | (941,619 | ) |  | $ | 204,774 |
Accrued liabilities |  |  | 16,868 |  |  |  | 228,364 |  |  |  | 2,121 |  |  |  | (128,549 | ) |  |  | 118,804 |
Total current liabilities |  |  | 968,868 |  |  |  | 418,216 |  |  |  | 6,662 |  |  |  | (1,070,168 | ) |  |  | 323,578 |
Long-term debt |  |  | 753,593 |  |  |  | 10,889 |  |  |  | 11,500 |  |  |  | (11,500 | ) |  |  | 764,482 |
Deferred income taxes |  |  | — |  |  |  | 320,813 |  |  |  | 972 |  |  |  | (6,267 | ) |  |  | 315,518 |
Other liabilities |  |  | 53 |  |  |  | 45,435 |  |  |  | 8 |  |  |  | — |  |  |  | 45,496 |
Stockholders' equity |  |  | 1,505,070 |  |  |  | 2,295,355 |  |  |  | 67,287 |  |  |  | (2,362,642 | ) |  |  | 1,505,070 |
Total liabilities and stockholders' equity |  | $ | 3,227,584 |  |  | $ | 3,090,708 |  |  | $ | 86,429 |  |  | $ | (3,450,577 | ) |  | $ | 2,954,144 |
Condensed Consolidating Financial Information for the Year Ended December 31, 2011
|  | Westlake Chemical Corporation |  |  | Guarantor Subsidiaries |  |  | Non-Guarantor Subsidiaries |  |  | Eliminations |  |  | Consolidated |
Statement of Operations |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  | $ | — |  |  | $ | 3,581,470 |  |  | $ | 42,202 |  |  | $ | (3,824 | ) |  | $ | 3,619,848 |
Cost of sales |  |  | — |  |  |  | 3,024,419 |  |  |  | 40,247 |  |  |  | (3,824 | ) |  |  | 3,060,842 |
Gross profit |  |  | — |  |  |  | 557,051 |  |  |  | 1,955 |  |  |  | — |  |  |  | 559,006 |
Selling, general and administrative expenses |  |  | 3,762 |  |  |  | 102,989 |  |  |  | 5,459 |  |  |  | — |  |  |  | 112,210 |
(Loss) income from operations |  |  | (3,762 | ) |  |  | 454,062 |  |  |  | (3,504 | ) |  |  | — |  |  |  | 446,796 |
Interest expense |  |  | (50,919 | ) |  |  | (73 | ) |  |  | — |  |  |  | — |  |  |  | (50,992 | )
Other income (expense), net |  |  | 10,217 |  |  |  | (4,212 | ) |  |  | (377 | ) |  |  | — |  |  |  | 5,628 |
(Loss) income before income taxes |  |  | (44,464 | ) |  |  | 449,777 |  |  |  | (3,881 | ) |  |  | — |  |  |  | 401,432 |
(Benefit from) provision for income taxes |  |  | (11,835 | ) |  |  | 155,313 |  |  |  | (1,012 | ) |  |  | — |  |  |  | 142,466 |
Equity in net income of subsidiaries |  |  | 291,595 |  |  |  | — |  |  |  | — |  |  |  | (291,595 | ) |  |  | — |
Net income (loss) |  | $ | 258,966 |  |  | $ | 294,464 |  |  | $ | (2,869 | ) |  | $ | (291,595 | ) |  | $ | 258,966 |
Condensed Consolidating Financial Information for the Year Ended December 31, 2010
|  | Westlake Chemical Corporation |  |  | Guarantor Subsidiaries |  |  | Non-Guarantor Subsidiaries |  |  | Eliminations |  |  | Consolidated |
Statement of Operations |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  | $ | — |  |  | $ | 3,130,513 |  |  | $ | 44,006 |  |  | $ | (2,732 | ) |  | $ | 3,171,787 |
Cost of sales |  |  | — |  |  |  | 2,653,234 |  |  |  | 38,602 |  |  |  | (2,732 | ) |  |  | 2,689,104 |
Gross profit |  |  | — |  |  |  | 477,279 |  |  |  | 5,404 |  |  |  | — |  |  |  | 482,683 |
Selling, general and administrative expenses |  |  | 4,257 |  |  |  | 95,441 |  |  |  | 4,621 |  |  |  | — |  |  |  | 104,319 |
(Loss) income from operations |  |  | (4,257 | ) |  |  | 381,838 |  |  |  | 783 |  |  |  | — |  |  |  | 378,364 |
Interest expense |  |  | (39,829 | ) |  |  | (46 | ) |  |  | — |  |  |  | — |  |  |  | (39,875 | )
Other income (expense), net |  |  | 15,045 |  |  |  | (12,715 | ) |  |  | 2,141 |  |  |  | — |  |  |  | 4,471 |
(Loss) income before income taxes |  |  | (29,041 | ) |  |  | 369,077 |  |  |  | 2,924 |  |  |  | — |  |  |  | 342,960 |
(Benefit from) provision for income taxes |  |  | (2,471 | ) |  |  | 122,541 |  |  |  | 1,497 |  |  |  | — |  |  |  | 121,567 |
Equity in net income of subsidiaries |  |  | 247,963 |  |  |  | — |  |  |  | — |  |  |  | (247,963 | ) |  |  | — |
Net income |  | $ | 221,393 |  |  | $ | 246,536 |  |  | $ | 1,427 |  |  | $ | (247,963 | ) |  | $ | 221,393 |
Condensed Consolidating Financial Information for the Year Ended December 31, 2009
|  | Westlake Chemical Corporation |  |  | Guarantor Subsidiaries |  |  | Non-Guarantor Subsidiaries |  |  | Eliminations |  |  | Consolidated |
Statement of Operations |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  | $ | — |  |  | $ | 2,289,953 |  |  | $ | 38,980 |  |  | $ | (3,210 | ) |  | $ | 2,325,723 |
Cost of sales |  |  | — |  |  |  | 2,099,795 |  |  |  | 34,010 |  |  |  | (3,210 | ) |  |  | 2,130,595 |
Gross profit |  |  | — |  |  |  | 190,158 |  |  |  | 4,970 |  |  |  | — |  |  |  | 195,128 |
Selling, general and administrative expenses |  |  | 4,185 |  |  |  | 80,213 |  |  |  | 3,473 |  |  |  | — |  |  |  | 87,871 |
(Loss) income from operations |  |  | (4,185 | ) |  |  | 109,945 |  |  |  | 1,497 |  |  |  | — |  |  |  | 107,257 |
Interest expense |  |  | (34,864 | ) |  |  | (93 | ) |  |  | — |  |  |  | — |  |  |  | (34,957 | )
Other income (expense), net |  |  | 14,843 |  |  |  | (12,981 | ) |  |  | 4,591 |  |  |  | — |  |  |  | 6,453 |
(Loss) income before income taxes |  |  | (24,206 | ) |  |  | 96,871 |  |  |  | 6,088 |  |  |  | — |  |  |  | 78,753 |
(Benefit from) provision for income taxes |  |  | (6,314 | ) |  |  | 31,620 |  |  |  | 452 |  |  |  | — |  |  |  | 25,758 |
Equity in net income of subsidiaries |  |  | 70,887 |  |  |  | — |  |  |  | — |  |  |  | (70,887 | ) |  |  | — |
Net income |  | $ | 52,995 |  |  | $ | 65,251 |  |  | $ | 5,636 |  |  | $ | (70,887 | ) |  | $ | 52,995 |
Condensed Consolidating Financial Information for the Year Ended December 31, 2011
|  | Westlake Chemical Corporation |  |  | Guarantor Subsidiaries |  |  | Non-Guarantor Subsidiaries |  |  | Eliminations |  |  | Consolidated |
Statement of Cash Flows |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash flows from operating activities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income (loss) |  | $ | 258,966 |  |  | $ | 294,464 |  |  | $ | (2,869 | ) |  | $ | (291,595 | ) |  | $ | 258,966 |
Adjustments to reconcile net income (loss) to net cash (used for) provided by operating activities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Depreciation and amortization |  |  | 1,683 |  |  |  | 127,807 |  |  |  | 3,590 |  |  |  | — |  |  |  | 133,080 |
Deferred income taxes |  |  | 190 |  |  |  | 14,225 |  |  |  | (301 | ) |  |  | — |  |  |  | 14,114 |
Net changes in working capital and other |  |  | (291,666 | ) |  |  | (45,667 | ) |  |  | 1,874 |  |  |  | 291,595 |  |  |  | (43,864 | )
Net cash (used for) provided by operating activities |  |  | (30,827 | ) |  |  | 390,829 |  |  |  | 2,294 |  |  |  | — |  |  |  | 362,296 |
Cash flows from investing activities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Additions to property, plant and equipment |  |  | — |  |  |  | (175,706 | ) |  |  | (1,137 | ) |  |  | — |  |  |  | (176,843 | )
Proceeds from disposition of assets |  |  | — |  |  |  | 2,877 |  |  |  | 3 |  |  |  | — |  |  |  | 2,880 |
Proceeds from repayment of loan to affiliate |  |  | — |  |  |  | — |  |  |  | 1,192 |  |  |  | — |  |  |  | 1,192 |
Purchase of securities and other investments |  |  | — |  |  |  | (30,265 | ) |  |  | — |  |  |  | — |  |  |  | (30,265 | )
Settlements of derivative instruments |  |  | — |  |  |  | 251 |  |  |  | — |  |  |  | — |  |  |  | 251 |
Net cash (used for) provided by investing activities |  |  | — |  |  |  | (202,843 | ) |  |  | 58 |  |  |  | — |  |  |  | (202,785 | )
Cash flows from financing activities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Intercompany financing |  |  | 186,898 |  |  |  | (185,522 | ) |  |  | (1,376 | ) |  |  | — |  |  |  | — |
Capitalized debt issuance costs |  |  | (2,697 | ) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (2,697 | )
Dividends paid |  |  | (18,265 | ) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (18,265 | )
Proceeds from exercise of stock options |  |  | 5,344 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 5,344 |
Repurchase of common stock for treasury |  |  | (2,518 | ) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (2,518 | )
Utilization of restricted cash |  |  | 54,227 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 54,227 |
Net cash provided by (used for) financing activities |  |  | 222,989 |  |  |  | (185,522 | ) |  |  | (1,376 | ) |  |  | — |  |  |  | 36,091 |
Net increase in cash and cash equivalents |  |  | 192,162 |  |  |  | 2,464 |  |  |  | 976 |  |  |  | — |  |  |  | 195,602 |
Cash and cash equivalents at beginning of the year |  |  | 611,158 |  |  |  | 53 |  |  |  | 19,088 |  |  |  | — |  |  |  | 630,299 |
Cash and cash equivalents at end of the year |  | $ | 803,320 |  |  | $ | 2,517 |  |  | $ | 20,064 |  |  | $ | — |  |  | $ | 825,901 |
Condensed Consolidating Financial Information for the Year Ended December 31, 2010
|  | Westlake Chemical Corporation |  |  | Guarantor Subsidiaries |  |  | Non-Guarantor Subsidiaries |  |  | Eliminations |  |  | Consolidated |
Statement of Cash Flows |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash flows from operating activities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income |  | $ | 221,393 |  |  | $ | 246,536 |  |  | $ | 1,427 |  |  | $ | (247,963 | ) |  | $ | 221,393 |
Adjustments to reconcile net income to net cash (used for) provided by operating activities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Depreciation and amortization |  |  | 2,154 |  |  |  | 125,002 |  |  |  | 3,730 |  |  |  | — |  |  |  | 130,886 |
Deferred income taxes |  |  | 7,864 |  |  |  | 6,048 |  |  |  | 241 |  |  |  | — |  |  |  | 14,153 |
Net changes in working capital and other |  |  | (245,113 | ) |  |  | (87,299 | ) |  |  | 1,301 |  |  |  | 247,963 |  |  |  | (83,148 | )
Net cash (used for) provided by operating activities |  |  | (13,702 | ) |  |  | 290,287 |  |  |  | 6,699 |  |  |  | — |  |  |  | 283,284 |
Cash flows from investing activities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Additions to equity investments |  |  | — |  |  |  | (10,177 | ) |  |  | — |  |  |  | — |  |  |  | (10,177 | )
Additions to property, plant and equipment |  |  | — |  |  |  | (79,928 | ) |  |  | (1,341 | ) |  |  | — |  |  |  | (81,269 | )
Proceeds from disposition of assets |  |  | — |  |  |  | 914 |  |  |  | — |  |  |  | — |  |  |  | 914 |
Proceeds from repayment of loan to affiliate |  |  | — |  |  |  | — |  |  |  | 763 |  |  |  | — |  |  |  | 763 |
Settlements of derivative instruments |  |  | — |  |  |  | 9,494 |  |  |  | — |  |  |  | — |  |  |  | 9,494 |
Net cash used for investing activities |  |  | — |  |  |  | (79,697 | ) |  |  | (578 | ) |  |  | — |  |  |  | (80,275 | )
Cash flows from financing activities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Intercompany financing |  |  | 210,360 |  |  |  | (210,614 | ) |  |  | 254 |  |  |  | — |  |  |  | — |
Capitalized debt issuance costs |  |  | (3,331 | ) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (3,331 | )
Dividends paid |  |  | (16,014 | ) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (16,014 | )
Proceeds from exercise of stock options |  |  | 3,745 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 3,745 |
Utilization of restricted cash |  |  | 197,298 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 197,298 |
Net cash provided by (used for) financing activities |  |  | 392,058 |  |  |  | (210,614 | ) |  |  | 254 |  |  |  | — |  |  |  | 181,698 |
Net increase (decrease) in cash and cash equivalents |  |  | 378,356 |  |  |  | (24 | ) |  |  | 6,375 |  |  |  | — |  |  |  | 384,707 |
Cash and cash equivalents at beginning of the year |  |  | 232,802 |  |  |  | 77 |  |  |  | 12,713 |  |  |  | — |  |  |  | 245,592 |
Cash and cash equivalents at end of the year |  | $ | 611,158 |  |  | $ | 53 |  |  | $ | 19,088 |  |  | $ | — |  |  | $ | 630,299 |
Condensed Consolidating Financial Information for the Year Ended December 31, 2009
|  | Westlake Chemical Corporation |  |  | Guarantor Subsidiaries |  |  | Non-Guarantor Subsidiaries |  |  | Eliminations |  |  | Consolidated |
Statement of Cash Flows |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash flows from operating activities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income |  | $ | 52,995 |  |  | $ | 65,251 |  |  | $ | 5,636 |  |  | $ | (70,887 | ) |  | $ | 52,995 |
Adjustments to reconcile net income to net cash (used for) provided by operating activities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Depreciation and amortization |  |  | 1,461 |  |  |  | 119,296 |  |  |  | 3,903 |  |  |  | — |  |  |  | 124,660 |
Deferred income taxes |  |  | 2,086 |  |  |  | 27,113 |  |  |  | 2,008 |  |  |  | — |  |  |  | 31,207 |
Net changes in working capital and other |  |  | (72,567 | ) |  |  | 27,731 |  |  |  | 609 |  |  |  | 70,887 |  |  |  | 26,660 |
Net cash (used for) provided by operating activities |  |  | (16,025 | ) |  |  | 239,391 |  |  |  | 12,156 |  |  |  | — |  |  |  | 235,522 |
Cash flows from investing activities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acquisition of business |  |  | — |  |  |  | (6,297 | ) |  |  | — |  |  |  | — |  |  |  | (6,297 | )
Additions to property, plant and equipment |  |  | — |  |  |  | (98,555 | ) |  |  | (1,214 | ) |  |  | — |  |  |  | (99,769 | )
Proceeds from disposition of assets |  |  | — |  |  |  | 3,255 |  |  |  | — |  |  |  | — |  |  |  | 3,255 |
Proceeds from insurance for involuntary conversion of assets |  |  | — |  |  |  | 484 |  |  |  | — |  |  |  | — |  |  |  | 484 |
Settlements of derivative instruments |  |  | — |  |  |  | (859 | ) |  |  | — |  |  |  | — |  |  |  | (859 | )
Net cash used for investing activities |  |  | — |  |  |  | (101,972 | ) |  |  | (1,214 | ) |  |  | — |  |  |  | (103,186 | )
Cash flows from financing activities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Intercompany financing |  |  | 137,442 |  |  |  | (137,411 | ) |  |  | (31 | ) |  |  | — |  |  |  | — |
Capitalized debt issuance costs |  |  | (2,203 | ) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (2,203 | )
Dividends paid |  |  | (14,510 | ) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (14,510 | )
Proceeds from exercise of stock options |  |  | 879 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 879 |
Utilization of restricted cash |  |  | 38,851 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 38,851 |
Net cash provided by (used for) financing activities |  |  | 160,459 |  |  |  | (137,411 | ) |  |  | (31 | ) |  |  | — |  |  |  | 23,017 |
Net increase in cash and cash equivalents |  |  | 144,434 |  |  |  | 8 |  |  |  | 10,911 |  |  |  | — |  |  |  | 155,353 |
Cash and cash equivalents at beginning of the year |  |  | 88,368 |  |  |  | 69 |  |  |  | 1,802 |  |  |  | — |  |  |  | 90,239 |
Cash and cash equivalents at end of the year |  | $ | 232,802 |  |  | $ | 77 |  |  | $ | 12,713 |  |  | $ | — |  |  | $ | 245,592 |

X
- Definition Tabular disclosure of each guarantee obligation, or each group of similar guarantee obligations, including (a) the nature of the guarantee, including its term, how it arose, and the events or circumstances that would require the guarantor to perform under the guarantee; (b) the maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee; (c) the current carrying amount of the liability, if any, for the guarantor's obligations under the guarantee; and (d) the nature of any recourse provisions under the guarantee, and any assets held either as collateral or by third parties, and any relevant related party disclosure. Excludes disclosures about product warranties. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6851643&loc=d3e12265-110248 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 5 -Paragraph 9, 10, 11, 12 -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 FASB -Name FASB Interpretation (FIN) -Number 45 -Paragraph 13, 16 -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 Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6851643&loc=d3e12069-110248 + Details
Name: | us-gaap_ScheduleOfGuaranteeObligationsTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | wlk_GuarantorDisclosuresAbstract
Namespace Prefix: | wlk_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration