CONSOLIDATED BALANCE SHEETS (USD $) In Thousands	Jun. 30, 2011	Dec. 31, 2010
Current assets
Cash and equivalents	$ 277,691	$ 186,513
Accounts receivable, net	797,577	584,068
Accounts receivable-related parties	51,824	38,121
Inventories	1,195,194	1,114,063
Deferred income taxes	21,114	20,684
Income taxes receivable	15,295	37,311
Other current assets	15,164	19,243
Total current assets	2,373,859	2,000,003
Property, plant and equipment, net	2,176,314	2,213,333
Restricted cash	21,717	23,132
Intangible assets, net	469,719	489,240
Goodwill	748,383	751,675
Other assets	110,461	112,551
Total assets	5,900,453	5,589,934
Current liabilities
Accounts payable	443,693	335,031
Accounts payable-related parties	12,166	13,570
Income taxes payable	11,531	5,227
Accrued expenses	173,440	175,041
Accrued profit sharing	28,464	23,524
Current maturities of long-term debt	1,552	8,924
Total current liabilities	670,846	561,317
Long-term debt
Other long-term debt	40,293	40,397
Total long-term debt	2,377,793	2,377,897
Deferred income taxes	476,532	457,432
Other liabilities	63,794	62,159
Commitments and contingencies
Redeemable noncontrolling interest	54,294	54,294
Equity
Common stock voting, $.0025 par value; 900,000,000 shares authorized; 254,987,769 and 254,002,799 shares issued; and 218,648,678 and 217,574,826 shares outstanding, as of June 30, 2011 and December 31, 2010, respectively	636	633
Treasury stock, at cost; 36,339,091 and 36,427,973 shares, as of June 30, 2011 and December 31, 2010, respectively	(725,849)	(727,624)
Additional paid-in capital	1,019,061	998,728
Retained earnings	1,982,051	1,821,133
Total Steel Dynamics, Inc. equity	2,275,899	2,092,870
Noncontrolling interests	(18,705)	(16,035)
Total equity	2,257,194	2,076,835
Total liabilities and equity	5,900,453	5,589,934
7 3/8% senior notes, due 2012
Long-term debt
Senior notes	700,000	700,000
5.125% convertible senior notes, due 2014
Long-term debt
Convertible senior notes	287,500	287,500
6 3/4% senior notes, due 2015
Long-term debt
Senior notes	500,000	500,000
7 3/4% senior notes, due 2016
Long-term debt
Senior notes	500,000	500,000
7 5/8% senior notes, due 2020
Long-term debt
Senior notes	$ 350,000	$ 350,000