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Segment Information (Tables)
12 Months Ended
Dec. 31, 2023
Segment Reporting [Abstract]  
Summarized Financial Information The following table shows dollars in thousands:
 Year Ended December 31,
 202320222021
Revenues:   
Electric Power$9,696,897 46.5 %$8,940,276 52.4 %$7,624,240 58.7 %
Renewable Energy6,170,301 29.5 %3,778,560 22.1 %1,825,259 14.1 %
Underground and Infrastructure5,015,008 24.0 %4,355,067 25.5 %3,530,714 27.2 %
Consolidated revenues$20,882,206 100.0 %$17,073,903 100.0 %$12,980,213 100.0 %
Operating income (loss):
   
Electric Power (1)
$1,013,350 10.5 %$958,798 10.7 %$865,409 11.4 %
Renewable Energy (2)
477,208 7.7 %304,308 8.1 %181,908 10.0 %
Underground and Infrastructure377,977 7.5 %317,543 7.3 %150,147 4.3 %
Corporate and Non-Allocated Costs (3)
(740,559)(3.5)%(708,591)(4.2)%(533,943)(4.1)%
Consolidated operating income$1,127,976 5.4 %$872,058 5.1 %$663,521 5.1 %
(1)    Includes equity in earnings of integral unconsolidated affiliates of $41.6 million, $52.5 million and $44.1 million for the years ended December 31, 2023, 2022 and 2021, primarily related to Quanta’s equity interest in LUMA Energy, LLC (LUMA).
(2)     Quanta recorded $11.7 million of asset impairment charges related to a software implementation project at an acquired company, which commenced prior to Quanta’s acquisition and was discontinued in the fourth quarter of 2022. The fair value of this software was zero at December 31, 2022.
(3)    Includes amortization expense of $289.0 million, $354.0 million and $165.4 million and non-cash stock-based compensation of $126.8 million, $105.6 million and $88.3 million for the years ended December 31, 2023, 2022 and 2021.
The following table sets forth depreciation expense by segment for the years ended December 31, 2023, 2022, and 2021. The table shows dollars in thousands:
Year Ended December 31,
202320222021
Depreciation:   
Electric Power$168,486 $149,151 $141,093 
Renewable Energy54,369 40,535 14,020 
Underground and Infrastructure77,524 83,117 83,720 
Corporate and Non-Allocated Costs24,407 17,844 16,696 
Consolidated depreciation$324,786 $290,647 $255,529