Commitments and Contingencies - Legal Proceedings (Details) $ in Thousands	1 Months Ended			3 Months Ended				12 Months Ended	24 Months Ended	52 Months Ended
	Aug. 31, 2020 USD ($)	Jul. 31, 2019 USD ($)	Apr. 30, 2019 USD ($)	Mar. 31, 2022 USD ($)	Mar. 31, 2021 USD ($)	Jun. 30, 2019 USD ($)	Sep. 30, 2017 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2020 USD ($)	Apr. 30, 2019 USD ($)	Aug. 31, 2019 building	May 31, 2019 USD ($)
Loss Contingencies [Line Items]
Gross Profit				$ (548,171)	$ (372,890)
Number of buildings with property damage | building											2
Project Contract Termination
Loss Contingencies [Line Items]
Charge to earnings related to legal proceedings						$ 79,200
Net receivable position on projects				120,000
Lorenzo Benton v Telecom Network Specialists Inc
Loss Contingencies [Line Items]
Damages sought				17,300
Damages awarded									$ 9,500
Reasonably possible estimate of loss				9,500
Adjustment | Correction of Estimated Project Costs and Percentage of Completion Method | Project Contract Termination
Loss Contingencies [Line Items]
Gross Profit						$ 14,500
Redes | Project Contract Termination
Loss Contingencies [Line Items]
Advance payments received								$ 87,000
On-demand performance bonds								$ 25,000
Amount claimed in arbitration												$ 190,000
Construction costs incurred										$ 157,000
Payments received on construction contracts										$ 100,000
Net receivable position on projects				$ 87,000
Redes | Telecommunication Networks Construction and Operation
Loss Contingencies [Line Items]
Term of post-construction operation and maintenance period								10 years
Redes | Telecommunication Networks Construction and Operation | Project Contract Termination
Loss Contingencies [Line Items]
Aggregate consideration for projects								$ 248,000
Aggregate consideration to be paid during the construction period								151,000
Aggregate consideration to be paid during the post-construction operation and maintenance period								$ 97,000
QPS Engineering, LLC | Maurepas Project Dispute
Loss Contingencies [Line Items]
Damages sought							$ 22,000
PRONATEL | Project Contract Termination
Loss Contingencies [Line Items]
Damages sought	$ 43,000		$ 45,000
Bond proceeds received			$ 112,000
Maurepas | Maurepas Project Dispute
Loss Contingencies [Line Items]
Damages sought		$ 59,000