CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Current assets
Cash and equivalents	$ 829,980	$ 1,400,887
Short-term investments	418,367	721,210
Inventories	3,073,637	2,894,632
Other current assets	141,635	162,790
Total current assets	6,239,011	6,787,826
Property, plant and equipment, net	7,433,564	6,734,218
Intangible assets, net	242,450	257,759
Goodwill	477,471	477,471
Other assets	668,761	651,146
Total assets	15,061,257	14,908,420
Current liabilities
Income taxes payable	6,070	5,524
Accrued payroll and benefits	277,307	469,143
Accrued expenses	343,525	309,312
Current maturities of long-term debt	815,642	459,987
Total current liabilities	2,655,952	2,332,296
Long-term debt	2,212,802	2,611,069
Deferred income taxes	928,321	944,768
Other liabilities	143,968	180,760
Total liabilities	5,941,043	6,068,893
Commitments and contingencies
Redeemable noncontrolling interests	171,212	171,212
Equity
Common stock voting, $0.0025 par value; 900,000,000 shares authorized; 268,142,204 and 268,112,991 shares issued; and 155,617,909 and 160,018,100 shares outstanding, as of June 30, 2024 and December 31, 2023, respectively	651	651
Treasury stock, at cost; 112,524,295 and 108,094,891 shares, as of June 30, 2024 and December 31, 2023, respectively	(6,489,369)	(5,897,606)
Additional paid-in capital	1,207,771	1,217,610
Retained earnings	14,413,148	13,545,590
Accumulated other comprehensive income (loss)	(1,428)	421
Total Steel Dynamics, Inc. equity	9,130,773	8,866,666
Noncontrolling interests	(181,771)	(198,351)
Total equity	8,949,002	8,668,315
Total liabilities and equity	15,061,257	14,908,420
Unrelated parties
Current assets
Accounts receivable, net	1,695,840	1,535,062
Current liabilities
Accounts payable	1,205,679	1,078,645
Related parties
Current assets
Accounts receivable, net	79,552	73,245
Current liabilities
Accounts payable	$ 7,729	$ 9,685