CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Current assets
Cash and equivalents	$ 1,368,618	$ 1,381,460
Short-term investments	0	262,174
Accounts receivable, net of allowances for credit losses of $8,209 and $6,387 as of December 31, 2020, and December 31, 2019, respectively	967,981	841,378
Accounts receivable-related parties	3,937	2,958
Inventories	1,843,548	1,689,043
Other current assets	74,363	76,012
Total current assets	4,258,447	4,253,025
Property, plant and equipment, net	4,105,569	3,135,886
Intangible assets, net	324,577	327,901
Goodwill	457,226	452,915
Other assets	119,743	106,038
Total assets	9,265,562	8,275,765
Current liabilities
Accounts payable	760,536	509,687
Accounts payable-related parties	8,919	3,657
Income taxes payable	2,386	2,014
Accrued payroll and benefits	201,778	208,287
Accrued interest	19,656	18,292
Accrued expenses	178,618	175,405
Current maturities of long-term debt	86,894	89,356
Total current liabilities	1,258,787	1,006,698
Long-term debt	3,015,782	2,644,988
Deferred income taxes	536,288	484,169
Other liabilities	106,479	75,055
Total liabilities	4,917,336	4,210,910
Commitments and contingencies
Redeemable noncontrolling interests	158,614	143,614
Equity
Common stock voting, $.0025 par value; 900,000,000 shares authorized; 266,618,566 and 266,072,787 shares issued; and 210,914,264 and 214,502,639 shares outstanding, as of December 31, 2020, and December 31, 2019, respectively	648	646
Treasury stock, at cost; 55,704,302 and 51,570,148 shares, as of December 31, 2020, and December 31, 2019, respectively	(1,623,747)	(1,525,113)
Additional paid-in capital	1,207,392	1,181,012
Retained earnings	4,758,969	4,419,296
Accumulated other comprehensive income (loss)	1,902	(7)
Total Steel Dynamics, Inc. equity	4,345,164	4,075,834
Noncontrolling interests	(155,552)	(154,593)
Total equity	4,189,612	3,921,241
Total liabilities and equity	$ 9,265,562	$ 8,275,765