Redeemable Noncontrolling Interests - Summary of Redeemable Noncontrolling Interest (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]
Beginning balance	$ 165,716	$ 84,542
Redeemable noncontrolling interest acquired	12,562
Net income attributable to redeemable noncontrolling interests	6,423	6,661
Redemption value adjustment	12,016	74,513
Ending balance	196,717	165,716
Linetec
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]
Beginning balance	165,716	84,542
Redeemable noncontrolling interest acquired	0
Net income attributable to redeemable noncontrolling interests	6,416	6,661
Redemption value adjustment	12,016	74,513
Ending balance	184,148	165,716
Drum
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]
Beginning balance	0	0
Redeemable noncontrolling interest acquired	12,562
Net income attributable to redeemable noncontrolling interests	7	0
Redemption value adjustment	0	0
Ending balance	$ 12,569	$ 0

Change in noncontrolling interest during the period as a result of a change in the redemption value of redeemable noncontrolling interest.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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- Definition

Amount of Net Income (Loss) attributable to redeemable noncontrolling interest.

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Amount of increase in noncontrolling interest from a business combination.

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- Definition

As of the reporting date, the aggregate carrying amount of all noncontrolling interests which are redeemable by the (parent) entity (1) at a fixed or determinable price on a fixed or determinable date, (2) at the option of the holder of the noncontrolling interest, or (3) upon occurrence of an event that is not solely within the control of the (parent) entity. This item includes noncontrolling interest holder's ownership (or holders' ownership) regardless of the type of equity interest (common, preferred, other) including all potential organizational (legal) forms of the investee entity.

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