CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Current assets
Cash and equivalents	$ 159,591	$ 395,156
Accounts receivable, net	1,013,503	664,208
Accounts receivable-related parties	45,165	56,392
Inventories	1,664,212	1,314,747
Deferred income taxes	18,402	17,964
Other current assets	29,263	25,167
Total current assets	2,930,136	2,473,634
Property, plant and equipment, net	3,420,654	2,226,134
Restricted cash	18,257	23,827
Intangible assets, net	406,318	386,159
Goodwill	727,128	731,996
Other assets	75,790	91,256
Total assets	7,578,283	5,933,006
Current liabilities
Accounts payable	621,579	404,605
Accounts payable-related parties	18,542	10,327
Income taxes payable	26,949	4,023
Accrued payroll and benefits	107,484	93,432
Accrued interest	21,277	31,363
Accrued expenses	113,851	89,884
Current maturities of long-term debt	131,858	341,544
Total current liabilities	1,041,540	975,178
Long-term debt
Senior term loan	189,062	220,000
Senior notes	2,700,000	1,500,000
Other long-term debt	40,932	46,045
Total long-term debt	2,929,994	1,766,045
Deferred income taxes	543,838	556,038
Other liabilities	24,922	23,376
Commitments and contingencies
Redeemable noncontrolling interests	126,340	116,514
Equity
Common stock voting, $.0025 par value; 900,000,000 shares authorized; 260,332,348 and 258,840,350 shares issued; and 240,365,196 and 222,867,408 shares outstanding, as of September 30, 2014 and December 31, 2013,respectively	649	645
Treasury stock, at cost; 19,967,152 and 35,972,942 shares, as of September 30, 2014 and December 31, 2013, respectively	(398,818)	(718,529)
Additional paid-in capital	1,075,593	1,085,694
Retained earnings	2,300,660	2,179,513
Total Steel Dynamics, Inc. equity	2,978,084	2,547,323
Noncontrolling interests	(66,435)	(51,468)
Total equity	2,911,649	2,495,855
Total liabilities and equity	$ 7,578,283	$ 5,933,006