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Operating Segments (Tables)
3 Months Ended
Dec. 31, 2023
Segment Reporting [Abstract]  
Schedule of Segment Reporting Information, by Segment [Table Text Block]
Segment information for the three months ended December 31, 2023 and 2022 is as follows:
Three Months Ended December 31, 2023
CommunicationsResidentialInfrastructure SolutionsCommercial & IndustrialCorporateTotal
Revenues$170,748 $315,856 $62,888 $84,952 $— $634,444 
Cost of services134,473 240,425 44,697 71,045 — 490,640 
Gross profit36,275 75,431 18,191 13,907 — 143,804 
Selling, general and administrative14,901 51,378 7,285 6,847 5,439 85,850 
Contingent consideration— 35 — — — 35 
Loss (gain) on sale of assets(4)(82)— 15 — (71)
Operating income (loss)$21,378 $24,100 $10,906 $7,045 $(5,439)$57,990 
 Other data:
Depreciation and amortization expense$723 $4,962 $1,227 $475 $230 $7,617 
Capital expenditures$1,000 $3,364 $1,151 $821 $179 $6,515 
Total assets$215,475 $388,808 $185,875 $101,621 $150,240 $1,042,019 
Three Months Ended December 31, 2022
CommunicationsResidentialInfrastructure SolutionsCommercial & IndustrialCorporateTotal
Revenues$147,245 $318,078 $49,284 $60,267 $— $574,874 
Cost of services125,507 258,459 38,817 56,653 — 479,436 
Gross profit21,738 59,619 10,467 3,614 — 95,438 
Selling, general and administrative12,297 39,051 5,761 5,689 4,970 67,768 
Contingent consideration— 69 — — — 69 
Gain on sale of assets— (6)(19)(13,035)— (13,060)
Operating income (loss)$9,441 $20,505 $4,725 $10,960 $(4,970)$40,661 
Other data:
Depreciation and amortization expense$430 $4,144 $1,354 $392 $68 $6,388 
Capital expenditures$642 $708 $639 $723 $— $2,712 
Total assets$203,500 $395,243 $163,201 $79,548 $55,324 $896,816