Redeemable Noncontrolling Interests (Tables)

12 Months Ended

Dec. 31, 2022

Noncontrolling Interest [Abstract]

Summary of Redeemable Noncontrolling Interest

The following depicts changes to the balances of the redeemable noncontrolling interests:

	Linetec		Drum		Total
(Thousands of dollars)
Balance, December 31, 2020	$	165,716	$	—	$	165,716
Redeemable noncontrolling interest acquired	—		12,562		12,562
Net income attributable to redeemable noncontrolling interests	6,416		7		6,423
Redemption value adjustments	12,016		—		12,016
Balance, December 31, 2021	184,148		12,569		196,717
Net income attributable to redeemable noncontrolling interests	5,591		15		5,606
Redemption value adjustments	(3,325)		—		(3,325)
Redemption of equity interest from noncontrolling party	(39,649)		—		(39,649)
Balance, December 31, 2022	$	146,765	$	12,584	$	159,349