CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
Net income	$ 644,333	$ 1,107,354
Other comprehensive income - net unrealized gain on cash flow hedging derivatives, net of income tax expense of $291 and $3,557 for the three-month periods ended March 31, 2023 and 2022, respectively	911	11,387
Comprehensive income	645,244	1,118,741
Comprehensive income attributable to noncontrolling interests	(7,023)	(3,423)
Comprehensive income attributable to Steel Dynamics, Inc.	$ 638,221	$ 1,115,318