v3.26.1
RELATED PARTY TRANSACTIONS - Transactions with Entities Owned or Controlled by the Founders (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Related Party Transaction [Line Items]          
Total revenues $ 1,449.0 $ 1,147.0 $ 2,437.0 $ 1,864.0  
Equipment sales 394.0 411.0 540.0 524.0  
OWN program payouts, related parties [1] 234.0 173.0 451.0 328.0  
Other income, related parties [2] 12.0 8.0 20.0 14.0  
Equipment operating lease expense 6.0 6.0 12.0 12.0  
Right of use assets, operating 719.0   719.0   $ 676.0
Segment selling, general and administrative expenses 317.0 229.0 603.0 439.0  
Accounts payable 105.0   105.0   95.0
Cash and cash equivalents 443.0   443.0   306.0
Equipment rental and related services          
Related Party Transaction [Line Items]          
Total revenues 815.0 577.0 1,498.0 1,072.0  
Equipment sales          
Related Party Transaction [Line Items]          
Total revenues [3] 483.0 478.0 661.0 624.0  
Equipment parts and supplies and services          
Related Party Transaction [Line Items]          
Total revenues 88.0 70.0 165.0 128.0  
Other          
Related Party Transaction [Line Items]          
Total revenues 29.0 12.0 48.0 20.0  
Chief Executive Officer or the President          
Related Party Transaction [Line Items]          
Other income, related parties 0.2 0.1 0.4 0.2  
Accounts payable 0.2   0.2   0.1
Chief Executive Officer or the President | Money Market Funds          
Related Party Transaction [Line Items]          
Cash and cash equivalents, amount deposited during period       5.0  
Cash and cash equivalents 21.0   21.0   21.0
Revenue Transactions | Chief Executive Officer or the President          
Related Party Transaction [Line Items]          
Equipment sales   0.0   42.0  
Revenue Transactions | Chief Executive Officer or the President | Equipment rental and related services          
Related Party Transaction [Line Items]          
Total revenues 0.2 0.1 0.2 1.0  
Revenue Transactions | Chief Executive Officer or the President | Equipment sales          
Related Party Transaction [Line Items]          
Total revenues 0.0 11.0 0.0 113.0  
Revenue Transactions | Chief Executive Officer or the President | Equipment parts and supplies and services          
Related Party Transaction [Line Items]          
Total revenues 0.1 0.9 0.1 3.0  
Revenue Transactions | Chief Executive Officer or the President | T3 Telematics Services Revenue          
Related Party Transaction [Line Items]          
Total revenues 0.1 1.0 0.1 1.0  
Revenue Transactions | Chief Executive Officer or the President | Other          
Related Party Transaction [Line Items]          
Total revenues 0.3 0.3 0.4 0.3  
OWN Program Payout Transactions | Chief Executive Officer or the President          
Related Party Transaction [Line Items]          
OWN program payouts, related parties 0.5 17.0 0.8 29.0  
Accrued expenses 0.1   0.1   0.0
Assignment of Property Site Purchase Rights and Construction Developer Fees | Chief Executive Officer or the President | Property Site Purchase Rights and Transaction Services          
Related Party Transaction [Line Items]          
Other income, related parties 0.7 0.6 2.0 1.0  
Assignment of Property Site Purchase Rights and Construction Developer Fees | Chief Executive Officer or the President | Construction Developer Fees          
Related Party Transaction [Line Items]          
Other income, related parties 3.0 0.9 5.0 2.0  
Accounts Receivable and Other Current Assets | Chief Executive Officer or the President          
Related Party Transaction [Line Items]          
Accounts receivable or other current assets 36.0   36.0   19.0
Leases | Chief Executive Officer or the President          
Related Party Transaction [Line Items]          
Equipment operating lease expense 0.3 1.0 0.7 3.0  
Right of use assets, operating 9.0   9.0   6.0
Operating lease liability 9.0   9.0   6.0
Segment selling, general and administrative expenses 0.8 0.9 2.0 1.0  
Payments for finance lease arrangements 0.8 0.1 2.0 0.7  
Finance lease liabilities 31.0   31.0   $ 29.0
Purchases of Rental Equipment, Parts, Supplies and Other | Chief Executive Officer or the President          
Related Party Transaction [Line Items]          
Payments to acquire productive assets 0.0 21.0 0.0 22.0  
Purchases of Rental Equipment, Parts, Supplies and Other | Chief Executive Officer or the President | Containers and Vehicles          
Related Party Transaction [Line Items]          
Payments to acquire productive assets   5.0   5.0  
Purchases of Rental Equipment, Parts, Supplies and Other | Chief Executive Officer or the President | Other Miscellaneous Parts, Equipment and Supplies          
Related Party Transaction [Line Items]          
Payments to acquire productive assets   0.2   0.2  
Purchases of Property and Other Fixed Assets | Chief Executive Officer or the President          
Related Party Transaction [Line Items]          
Payments to acquire property and other fixed assets $ 0.1 $ 0.1 $ 0.1 $ 1.0  
[1] Includes amounts incurred from related parties of $0.5 and $17 for the three months ended June 30, 2026 and 2025, respectively, and $0.8
and $29 for the six months ended June 30, 2026 and 2025, respectively.
[2] Includes amounts earned from related parties of $4 and $1 for the three months ended June 30, 2026 and 2025, respectively, and $7 and $3
for the six months ended June 30, 2026 and 2025, respectively.
[3] Includes amounts earned from related parties of  $— and $11 for the three months ended June 30, 2026 and 2025, respectively, and $— and
$71 for the six months ended June 30, 2026 and 2025, respectively.