Stock-Based Compensation (Tables)

3 Months Ended

Apr. 01, 2017

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Summary of Stock Option Plans Activity

A summary of activity under Nucor’s stock option plans for the first quarter of 2017 is as follows (in thousands, except year and per share amounts):

				Weighted - Average		Weighted - Average		Aggregate Intrinsic Value
	Shares			Exercise Price		Remaining Contractual Life
Number of shares under option:
Outstanding at beginning of year		3,591		$	45.32
Granted		—			—
Exercised		(92	)	$	38.56				2,278
Canceled		—			—
Outstanding at April 1, 2017		3,499		$	45.49		7.1 years		49,788
Options exercisable at April 1, 2017		1,466		$	40.94		5.2 years		27,523

Summary of Nucor's RSU Activity

A summary of Nucor’s RSU activity for the first quarter of 2017 is as follows (shares in thousands):

	Shares			Grant Date Fair Value
Restricted stock units:
Unvested at beginning of year		1,040		$	48.47
Granted		—			—
Vested		(11	)	$	48.64
Canceled		(4	)	$	48.53
Unvested at April 1, 2017		1,025		$	48.47
Shares reserved for future grants         (stock options and RSUs)		8,702

Summary of Nucor's Restricted Stock Activity under AIP and LTIP

A summary of Nucor’s restricted stock activity under the AIP and the LTIP for the first quarter of 2017 is as follows (shares in thousands):

	Shares			Grant Date Fair Value
Restricted stock awards and units:
Unvested at beginning of year		67		$	45.77
Granted		172		$	60.62
Vested		(144	)	$	51.69
Canceled		—			—
Unvested at April 1, 2017		95		$	54.45
Shares reserved for future grants		683