CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Current assets
Cash and equivalents	$ 589,464	$ 1,400,887
Short-term investments	147,811	721,210
Inventories	3,113,733	2,894,632
Other current assets	163,131	162,790
Total current assets	5,431,338	6,787,826
Property, plant and equipment, net	8,117,988	6,734,218
Intangible assets, net	227,234	257,759
Goodwill	477,471	477,471
Other assets	681,202	651,146
Total assets	14,935,233	14,908,420
Current liabilities
Income taxes payable	3,783	5,524
Accrued payroll and benefits	373,216	469,143
Accrued expenses	366,682	309,312
Current maturities of long-term debt	426,990	459,987
Total current liabilities	2,150,583	2,332,296
Long-term debt	2,804,017	2,611,069
Deferred income taxes	902,186	944,768
Other liabilities	133,201	180,760
Total liabilities	5,989,987	6,068,893
Commitments and contingencies
Redeemable noncontrolling interests	171,212	171,212
Equity
Common stock voting, $.0025 par value; 900,000,000 shares authorized; 268,377,165 and 268,112,991 shares issued; and 151,117,153 and 160,018,100 shares outstanding, as of December 31, 2024 and 2023, respectively	652	651
Treasury stock, at cost; 117,260,012 and 108,094,891 shares, as of December 31, 2024 and 2023, respectively	(7,094,266)	(5,897,606)
Additional paid-in capital	1,229,819	1,217,610
Retained earnings	14,798,082	13,545,590
Accumulated other comprehensive income		421
Total Steel Dynamics, Inc. equity	8,934,287	8,866,666
Noncontrolling interests	(160,253)	(198,351)
Total equity	8,774,034	8,668,315
Total liabilities and equity	14,935,233	14,908,420
Unrelated parties
Current assets
Accounts receivable, net	1,362,969	1,535,062
Current liabilities
Accounts payable	972,645	1,078,645
Related parties
Current assets
Accounts receivable, net	54,230	73,245
Current liabilities
Accounts payable	$ 7,267	$ 9,685