v3.25.4
Operating Segments (Details)
$ in Thousands
 3 Months Ended
Dec. 31, 2025
USD ($)
business
Dec. 31, 2024
USD ($)
Sep. 30, 2025
USD ($)
Segment Reporting Information [Line Items]      
Cost of services $ 650,943 $ 571,520  
Gross profit 220,015 178,027  
Selling, general and administrative expenses 121,815 103,039  
Contingent consideration 129 339  
Loss (gain) on sale of assets 338 30  
Operating income (loss) 97,733 74,619  
Depreciation and amortization expense 12,674 11,087  
Capital expenditures 46,574 13,169  
Total assets 1,658,377 1,265,009 $ 1,595,661
Revenues 870,958 749,547  
Noncontrolling Interest, Change in Redemption Value $ 543 1,514  
Number of Reportable Segments | business 4    
Commercial and Industrial [Member]      
Segment Reporting Information [Line Items]      
Cost of services $ 74,668 73,375  
Gross profit 20,151 15,116  
Selling, general and administrative expenses 10,517 8,064  
Loss (gain) on sale of assets (69) (4)  
Operating income (loss) 9,703 7,056  
Depreciation and amortization expense 930 573  
Capital expenditures 1,928 2,982  
Total assets 143,170 99,668  
Revenues 94,819 88,491  
Communications [Member]      
Segment Reporting Information [Line Items]      
Cost of services 265,530 184,149  
Gross profit 86,390 48,811  
Selling, general and administrative expenses 28,440 20,238  
Loss (gain) on sale of assets 513 (38)  
Operating income (loss) 57,437 28,611  
Depreciation and amortization expense 1,808 1,203  
Capital expenditures 22,538 4,680  
Total assets 436,337 294,246  
Revenues 351,920 232,960  
Infrastructure Solutions [Member]      
Segment Reporting Information [Line Items]      
Cost of services 89,634 73,153  
Gross profit 50,541 34,972  
Selling, general and administrative expenses 14,907 11,268  
Contingent consideration 129 339  
Loss (gain) on sale of assets (95) 79  
Operating income (loss) 35,600 23,286  
Depreciation and amortization expense 3,904 3,673  
Capital expenditures 2,292 2,111  
Total assets 356,298 272,625  
Revenues 140,175 108,125  
Residential [Member]      
Segment Reporting Information [Line Items]      
Cost of services 221,111 240,843  
Gross profit 62,933 79,128  
Selling, general and administrative expenses 54,082 55,312  
Contingent consideration 0 0  
Loss (gain) on sale of assets (11) (7)  
Operating income (loss) 8,862 23,823  
Depreciation and amortization expense 5,718 5,411  
Capital expenditures 1,340 2,341  
Total assets 331,614 390,468  
Revenues 284,044 319,971  
Corporate Segment [Member]      
Segment Reporting Information [Line Items]      
Cost of services 0 0  
Gross profit 0 0  
Selling, general and administrative expenses 13,869 8,157  
Loss (gain) on sale of assets 0 0  
Operating income (loss) (13,869) (8,157)  
Depreciation and amortization expense 314 227  
Capital expenditures 18,476 1,055  
Total assets 390,958 208,002  
Revenues $ 0 $ 0