v3.26.1
Segments - Summary of Certain Financial Data For Each of Segments and Reconciliation of Segment Adjusted EBITDA to Income (Loss) Before Income Taxes (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Mar. 31, 2026
Mar. 31, 2025
Segment Reporting Information [Line Items]        
Net Service Revenues $ 702.9 $ 662.6 $ 1,317.7 $ 1,261.8
Segment Adjusted EBITDA 79.1 73.5 132.5 125.6
Interest expense, net 13.7 12.8 27.2 26.9
Depreciation expense 47.4 31.8 90.3 62.3
Amortization expense 5.3 7.1 11.5 15.2
Business transformation and integration costs [1] 5.7 7.8 12.7 17.0
Equity-based compensation [2] 4.7 4.6 8.9 9.4
Debt extinguishment   0.7 [3] 0.0 0.7 [3]
Income (loss) before income taxes 2.3 8.7 (18.1) (5.9)
Capital Expenditures 58.8 33.6 113.5 92.3
Operating Segments | Maintenance Services        
Segment Reporting Information [Line Items]        
Net Service Revenues 554.6 492.8 991.0 902.1
Direct costs [4] 339.5 293.4 592.4 523.5
Other segment items [5] 145.6 143.1 293.6 287.6
Segment Adjusted EBITDA 69.5 56.3 105.0 91.0
Capital Expenditures 54.7 31.3 103.5 73.0
Operating Segments | Development Services        
Segment Reporting Information [Line Items]        
Net Service Revenues 149.6 171.9 328.8 363.7
Direct costs [4] 112.3 128.9 245.2 275.0
Other segment items [5] 27.7 25.8 56.1 54.1
Segment Adjusted EBITDA 9.6 17.2 27.5 34.6
Capital Expenditures 4.1 2.3 10.0 19.3
Eliminations        
Segment Reporting Information [Line Items]        
Net Service Revenues (1.3) (2.1) (2.1) (4.0)
Direct costs [4] (1.2) (2.2) (2.1) (4.0)
Other segment items [5] 0.1 (0.1) (0.0) (0.0)
Segment Adjusted EBITDA $ 0.0 $ 0.0 $ (0.0) $ 0.0
[1] Business transformation and integration costs consist of severance and related costs, information technology, infrastructure, transformation, and other costs. These costs represent expenses related to distinct initiatives, typically significant enterprise-wide changes, including actions taken as part of the Company's One BrightView initiative. Such expenses are excluded from Segment Adjusted EBITDA disclosed above since such expenses vary in amount based on occurrence as well as factors specific to each of the activities, are outside of the normal operations of the business, and create a lack of comparability between periods.
[2] Represents equity-based compensation expense and related taxes recognized for equity incentive plans outstanding.
[3] Represents losses on the extinguishment of debt related to Amendment No. 9 to the Credit Agreement, in the fiscal year ended September 30, 2025 and includes accelerated amortization of deferred financing fees and original issue discount as well as fees paid to lenders and third parties.
[4] The Company's significant segment expense, direct costs, aligns with the segment level information that is regularly provided to our CODM. Direct costs include direct labor, materials, and other costs that are directly incurred as a result of the delivery of services. Direct costs do not include costs of sales that are allocated to services including fuel and depreciation. Intersegment expenses are included within the amounts shown.
[5] Other segment items for both segments primarily include indirect compensation costs, auto and equipment costs, selling, general, and administrative costs and allocation of corporate expenses.