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REVENUE FROM CUSTOMERS (Tables)
 6 Months Ended
Jun. 30, 2025
Revenue from Contract with Customer [Abstract]  
Schedule of Backlog by Segment The following table presents the Company’s RPOs, by segment:
June 30, 2025December 31, 2024
E-Infrastructure Solutions RPOs$1,249,711 $1,032,109 
Transportation Solutions RPOs714,983 622,085 
Building Solutions RPOs - Commercial44,001 39,029 
Total RPOs$2,008,695 $1,693,223 
Schedule of Revenue Disaggregation The following tables present the Company’s revenue disaggregated by major end market and contract type:
Three Months Ended June 30,Six Months Ended June 30,
Revenues by major end market2025202420252024
E-Infrastructure Solutions Revenues$310,406 $241,312 $528,669 $425,788 
Heavy Highway133,109 161,863 220,307 255,240 
Aviation15,797 22,634 27,308 40,774 
Other Services
47,891 48,278 69,843 85,730 
Transportation Solutions Revenues (1)
196,797 232,775 317,458 381,744 
Residential91,812 84,682 168,578 168,451 
Commercial15,453 24,053 30,712 47,199 
Building Solutions Revenues107,265 108,735 199,290 215,650 
Total Revenues (1)
$614,468 $582,822 $1,045,417 $1,023,182 
Revenues by contract type
Lump-Sum$323,186 $274,701 $547,374 $498,862 
Fixed-Unit Price200,034 221,297 326,596 352,158 
Residential and Other91,248 86,824 171,447 172,162 
Total Revenues (1)
$614,468 $582,822 $1,045,417 $1,023,182 
(1) Due to the deconsolidation of RHB on December 31, 2024, RHB’s revenue is no longer included in Sterling’s consolidated revenue in 2025. For the three and six months ended June 30, 2024, RHB had revenue of $73,947 and $112,411, respectively, included within Transportation Solutions and Total Revenues.