Stockholders' Equity (Tables)

3 Months Ended

Mar. 31, 2018

Equity [Abstract]

Schedule of Changes in Stockholders' Equity

13. STOCKHOLDERS’ EQUITY: The following tables reflect the changes in stockholders’ equity attributable to both Nucor and the noncontrolling interests of Nucor’s joint ventures, primarily Nucor-Yamato Steel Company (Limited Partnership), of which Nucor owns 51%, for the three months ended March 31, 2018 and April 1, 2017 (in thousands):

	Attributable to Nucor Corporation			Attributable to Noncontrolling Interests			Total
Stockholders’ equity at December 31, 2017	$	8,739,036		$	345,752		$	9,084,788
Total comprehensive income		359,494			25,933			385,427
Stock options		12,630			—			12,630
Issuance of stock under award plans, net of forfeitures		15,240			—			15,240
Amortization of unearned compensation		700			—			700
Treasury stock acquired		(29,193	)		—			(29,193	)
Dividends declared		(121,880	)		—			(121,880	)
Distributions to noncontrolling interests		—			(24,793	)		(24,793	)
Stockholders’ equity at March 31, 2018	$	8,976,027		$	346,892		$	9,322,919
	Attributable to Nucor Corporation			Attributable to Noncontrolling Interests			Total
Stockholders’ equity at December 31, 2016	$	7,879,865		$	374,843		$	8,254,708
Total comprehensive income		357,750			20,749			378,499
Stock options		3,785			—			3,785
Issuance of stock under award plans, net of forfeitures		13,633			—			13,633
Amortization of unearned compensation		400			—			400
Dividends declared		(121,410	)		—			(121,410	)
Distributions to noncontrolling interests		—			(61,544	)		(61,544	)
Stockholders’ equity at April 1, 2017	$	8,134,023		$	334,048		$	8,468,071