CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Current assets
Cash and equivalents	$ 1,381,460	$ 828,220
Short-term investments	262,174	228,783
Accounts receivable, net of related allowances of $15,867 and $17,495 as of December 31, 2019, and December 31, 2018, respectively	841,378	1,040,220
Accounts receivable-related parties	2,958	3,536
Inventories	1,689,043	1,859,168
Other current assets	76,012	72,730
Total current assets	4,253,025	4,032,657
Property, plant and equipment, net	3,135,886	2,945,767
Intangible assets, net of accumulated amortization of $322,611 and $294,449 as of December 31, 2019, and December 31, 2018, respectively	327,901	270,328
Goodwill	452,915	429,645
Other assets	106,038	25,166
Total assets	8,275,765	7,703,563
Current liabilities
Accounts payable	509,687	536,743
Accounts payable-related parties	3,657	14,011
Income taxes payable	2,014	7,468
Accrued payroll and benefits	208,287	264,542
Accrued interest	18,292	25,526
Accrued expenses	175,405	146,613
Current maturities of long-term debt	89,356	24,234
Total current liabilities	1,006,698	1,019,137
Long-term debt	2,644,988	2,352,489
Deferred income taxes	484,169	435,838
Other liabilities	75,055	8,870
Total liabilities	4,210,910	3,816,334
Commitments and contingencies
Redeemable noncontrolling interests	143,614	111,240
Equity
Common stock voting, $.0025 par value; 900,000,000 shares authorized; 266,072,787 and 265,822,402 shares issued; and 214,502,639 and 225,272,174 shares outstanding, as of December 31, 2019, and December 31, 2018, respectively	646	645
Treasury stock, at cost; 51,570,148 and 40,550,228 shares, as of December 31, 2019, and December 31, 2018, respectively	(1,525,113)	(1,184,243)
Additional paid-in capital	1,181,012	1,160,048
Retained earnings	4,419,296	3,958,320
Accumulated other comprehensive income (loss)	(7)	301
Total Steel Dynamics, Inc. equity	4,075,834	3,935,071
Noncontrolling interests	(154,593)	(159,082)
Total equity	3,921,241	3,775,989
Total liabilities and equity	$ 8,275,765	$ 7,703,563