Changes in Equity (Tables)

6 Months Ended

Jun. 30, 2014

Changes in Equity

Schedule of stockholders' equity

The following table provides a reconciliation of the beginning and ending carrying amounts of total equity, equity attributable to stockholders of Steel Dynamics, Inc. and equity and redeemable amounts attributable to the noncontrolling interests (in thousands):

	Stockholders of Steel Dynamics, Inc.
	Common		Additional Paid-In			Retained			Treasury			Noncontrolling			Total			Redeemable Noncontrolling
	Stock		Capital			Earnings			Stock			Interests			Equity			Interests
Balances at January 1, 2014	$	645	$	1,085,694		$	2,179,513		$	(718,529	)	$	(51,468	)	$	2,495,855		$	116,514
Proceeds from the exercise of stock options, including related tax effect	2		11,501			—			—			—			11,503			—
Dividends declared	—		—			(53,221		)	—			—			(53,221		)	—
Conversion of 5.125% convertible senior notes	—		(45,650		)	—			317,451			—			271,801			—
Equity-based compensation and issuance of restricted stock	—		7,376			(27		)	2,260			—			9,609			—
Contributions from noncontrolling investors	—		—			—			—			97			97			7,666
Distributions to noncontrolling investors	—		—			—			—			(653		)	(653		)	—
Net income (loss)	—		—			110,882			—			(10,843		)	100,039			—
Balances at June 30, 2014	$	647	$	1,058,921		$	2,237,147		$	(398,818	)	$	(62,867	)	$	2,835,030		$	124,180