v3.26.3
Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)
$ in Thousands
 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Cash flows from operating activities:    
Net income $ 159,803 $ 72,492
Adjustments to reconcile net income to net cash provided by operating activities:    
Depreciation and amortization of property, equipment, and intangibles 591,389 590,791
Gain on sale of property and equipment (53,861) (54,680)
Impairments 882 45,417
Deferred income taxes 53,381 21,309
Non-cash lease expense 113,158 120,998
Gain on equity securities (427) (724)
Other adjustments to reconcile net income to net cash provided by operating activities 52,977 31,380
Increase (decrease) in cash resulting from changes in:    
Trade receivables (187,317) (69,755)
Income tax receivable 2,721 (42,116)
Accounts payable 51,718 (86,406)
Accrued liabilities and claims accrual 110,905 18,823
Operating lease liabilities (113,533) (118,823)
Other assets and liabilities 18,085 14,725
Net cash provided by operating activities 799,881 543,431
Cash flows from investing activities:    
Proceeds from sale of property and equipment, including assets held for sale 190,071 234,234
Purchases of property and equipment (616,747) (641,573)
Expenditures on assets held for sale 0 (855)
Acquisition of leased assets 0 (10,425)
Other cash flows used in investing activities (1,180) (5,891)
Net cash used in investing activities (427,856) (424,510)
Cash flows from financing activities:    
Repayments of finance leases and long-term debt (980,253) (1,561,267)
Proceeds from long-term debt 0 1,000,000
Borrowings on revolving lines of credit 62,000 907,000
Repayments on revolving lines of credit (688,000) (432,000)
Borrowings under accounts receivable securitization 0 46,000
Repayments of accounts receivable securitization 0 (50,000)
Proceeds from convertible senior notes 1,466,250 0
Purchase of capped calls (107,100) 0
Proceeds from common stock issued 4,113 4,422
Dividends paid (98,394) (88,214)
Other cash flows used in financing activities (21,352) (15,078)
Net cash used in financing activities (362,736) (189,137)
Net increase (decrease) in cash, restricted cash, and equivalents 9,289 (70,216)
Cash, restricted cash, and equivalents at beginning of period 308,740 370,230
Cash, restricted cash, and equivalents at end of period 318,029 300,014
Cash paid during the period for:    
Interest 63,629 120,258
Income taxes 9,653 42,055
Other Significant Noncash Transactions [Line Items]    
Equipment acquired included in accounts payable 70,400 12,064
Right-of-use assets obtained in exchange for operating lease liabilities 61,846 41,299
Property and equipment obtained in exchange for finance lease liabilities 109,315 96,862
Financing provided to independent contractors for equipment sold    
Other Significant Noncash Transactions [Line Items]    
Other non-cash investing and financing activities 482 3,573
Transfers from property and equipment to assets held for sale [Member]    
Other Significant Noncash Transactions [Line Items]    
Other non-cash investing and financing activities 61,711 109,068
Property and equipment obtained in exchange for debt and finance lease liabilities from operating lease liabilities    
Other Significant Noncash Transactions [Line Items]    
Property and equipment obtained in exchange for finance lease liabilities $ 0 $ 11,860