Background, Organization, and Summary of Significant Accounting Policies - Summary of Redeemable Noncontrolling Interest (Details) $ in Thousands	3 Months Ended
Mar. 31, 2022 USD ($)
Movement In Redeemable Noncontrolling Interest [Roll Forward]
Redeemable noncontrolling interest, beginning balance	$ 196,717
Net income attributable to redeemable noncontrolling interests	1,072
Redemption value adjustments	(22,156)
Redemption of equity interest from noncontrolling party	(39,649)
Redeemable noncontrolling interest, ending balance	135,984
Linetec
Movement In Redeemable Noncontrolling Interest [Roll Forward]
Redeemable noncontrolling interest, beginning balance	184,148
Net income attributable to redeemable noncontrolling interests	1,103
Redemption value adjustments	(22,156)
Redemption of equity interest from noncontrolling party	(39,649)
Redeemable noncontrolling interest, ending balance	123,446
Drum
Movement In Redeemable Noncontrolling Interest [Roll Forward]
Redeemable noncontrolling interest, beginning balance	12,569
Net income attributable to redeemable noncontrolling interests	(31)
Redemption value adjustments	0
Redemption of equity interest from noncontrolling party	0
Redeemable noncontrolling interest, ending balance	$ 12,538

Movement In Redeemable Noncontrolling Interest [Roll Forward]

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

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 480
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Decrease in noncontrolling interest (for example, but not limited to, redeeming or purchasing the interests of noncontrolling shareholders, issuance of shares (interests) by the non-wholly owned subsidiary to the parent entity for other than cash, and a buyback of shares (interest) by the non-wholly owned subsidiary from the noncontrolling interests).

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

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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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