Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Current assets
Cash and cash equivalents	$ 813,468	$ 461,301
Marketable Securities, Current	0	239,388
Accounts receivable, net	592,964	428,457
Inventories	500,552	471,879
Prepaid expenses and other current assets	18,884	13,888
Deferred income taxes	26,080	34,169
Total current assets	1,951,948	1,649,082
Property, plant and equipment, net	2,710,475	2,088,014
Equity investments	70,828	66,875
Other assets, net
Intangible assets, net	222,728	159,046
Deferred charges and other assets	170,304	97,892
Total other assets, net	393,032	256,938
Total assets	5,126,283	4,060,909
Current liabilities
Accounts payable	263,365	249,613
Accrued liabilities	309,671	155,245
Total current liabilities	573,036	404,858
Long-term debt	763,968	763,879
Deferred income taxes	513,773	437,976
Other liabilities	153,158	35,593
Total liabilities	2,003,935	1,642,306
Commitments and contingencies (Notes 7 and 15)
Stockholders' equity
Preferred stock, $0.01 par value, 50,000,000 shares authorized; no shares issued and outstanding	0	0
Common stock, $0.01 par value, 300,000,000 shares authorized; 134,680,164 and 134,580,208 shares issued at September 30, 2014 and December 31, 2013, respectively (Note 1)	1,347	1,346
Common stock, held in treasury, at cost; 1,220,544 and 1,252,922 shares at September 30, 2014 and December 31, 2013, respectively (Note 1)	(53,248)	(46,220)
Additional paid-in capital	527,992	511,432
Retained earnings	2,394,203	1,954,661
Accumulated other comprehensive loss	(36,433)	(2,616)
Total Westlake Chemical Corporation stockholders' equity	2,833,861	2,418,603
Noncontrolling interests	288,487	0
Total equity	3,122,348	2,418,603
Total liabilities and equity	$ 5,126,283	$ 4,060,909