Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Current assets
Cash and cash equivalents	$ 961,925	$ 880,601
Marketable securities	285,726	0
Accounts receivable, net	520,960	560,666
Inventories	430,006	525,776
Prepaid expenses and other current assets	18,272	11,807
Deferred income taxes	31,541	32,437
Total current assets	2,248,430	2,011,287
Property, plant and equipment, net	2,916,630	2,757,557
Equity investments	9,593	61,305
Other assets, net
Intangible assets, net	218,652	218,431
Deferred charges and other assets, net	131,100	165,410
Total other assets, net	349,752	383,841
Total assets	5,524,405	5,213,990
Current liabilities
Accounts and notes payable	244,772	261,062
Accrued liabilities	290,115	276,118
Total current liabilities	534,887	537,180
Long-term debt	764,086	763,997
Deferred income taxes	534,824	536,066
Other liabilities	170,770	174,859
Total liabilities	$ 2,004,567	$ 2,012,102
Commitments and contingencies (Notes 8 and 19)
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; 134,663,244 and 134,679,064 shares issued at September 30, 2015 and December 31, 2014, respectively	1,347	1,347
Common stock, held in treasury, at cost; 3,722,899 and 1,787,546 shares at September 30, 2015 and December 31, 2014, respectively	(217,542)	(96,372)
Additional paid-in capital	540,342	530,441
Retained earnings	3,022,717	2,555,528
Accumulated other comprehensive loss	(121,865)	(79,433)
Total Westlake Chemical Corporation stockholders' equity	3,224,999	2,911,511
Noncontrolling interests	294,839	290,377
Total equity	3,519,838	3,201,888
Total liabilities and equity	$ 5,524,405	$ 5,213,990