CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Operating activities
Net income (loss)	$ 111.5	$ (114.9)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation and amortization	108.0	108.7
Amortization of debt discounts and debt issuance costs	2.3	2.2
Non-cash interest expense	14.0	10.6
Non-cash operating lease expense	83.5	77.7
Income from unconsolidated affiliates	(7.6)	(7.2)
Return on investment from unconsolidated affiliates	8.3	7.3
Deferred income taxes	11.5	(72.3)
Stock-based compensation	15.6	11.9
Investment Agreement warrant expense	14.2	18.7
Gain on financing arrangement	(215.1)	0.0
Changes in operating assets and liabilities
Accounts receivable	0.9	35.9
Prepaid expenses and other current assets	(8.6)	(0.5)
Other assets	1.7	(6.2)
Accounts payable	4.0	1.5
Accrued expenses	(64.2)	(81.7)
Income taxes	55.8	58.3
Operating lease liabilities	(78.9)	(72.4)
Other current and long-term liabilities	(19.9)	(52.5)
Other	4.9	6.2
Net cash provided by (used in) operating activities	41.9	(68.7)
Investing activities
Capital expenditures	(125.2)	(41.4)
Other	(10.7)	(5.9)
Net cash used in investing activities	(135.9)	(47.3)
Financing activities
Proceeds from revolving credit facility	150.0	0.0
Repayments of revolving credit facility	(90.0)	0.0
Principal payments on long-term debt	(9.4)	(9.4)
Debt issuance costs	0.0	(2.6)
Principal payments on financing obligations	(10.7)	(10.0)
Principal payments on finance leases	(13.1)	(12.2)
Repurchase of common stock	(25.0)	0.0
Payments on insurance financing	(12.4)	(12.2)
Other	(5.6)	(3.7)
Net cash used in financing activities	(16.2)	(50.1)
Effect of currency rate changes on cash, cash equivalents, and restricted cash	0.0	(0.8)
Change in cash, cash equivalents, and restricted cash	(110.2)	(166.9)
Cash, cash equivalents, and restricted cash at the beginning of the year	723.8	1,094.4
Cash, cash equivalents, and restricted cash at the end of the period	613.6	927.5
Reconciliation of cash, cash equivalents, and restricted cash:
Cash and cash equivalents	591.6	903.6
Restricted cash included in Other current assets	20.8	22.7
Restricted cash included in Other assets	1.2	1.2
Total cash, cash equivalents, and restricted cash	613.6	927.5
Supplemental disclosure:
Cash paid for interest, net of amounts capitalized	102.0	114.0
Cash payments (refunds) related to income taxes, net	(19.7)	0.6
Non-cash activities:
Accrued capital expenditures	$ 67.7	$ 12.7