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Segment Information (Tables)
3 Months Ended
Mar. 31, 2022
Segment Reporting [Abstract]  
Schedule of segment's internal financial reports
The information in the following table is derived from the segment’s internal financial reports used for corporate management purposes:
Three months ended
March 31,
(in thousands)20222021
Contract revenues:
T&D$364,856 $314,908 
C&I271,768 277,578 
$636,624 $592,486 
Income from operations:
T&D$30,431 $28,673 
C&I10,090 14,272 
General Corporate(15,619)(15,534)
$24,902 $27,411