Operating lease costs and short-term lease costs are included in Operating expenses or General and administrative expense in our Consolidated Statements of Operations, depending on the nature of the leases. Finance lease costs are included in Depreciation and amortization expense and Interest expense, net in our Consolidated Statements of Operations. The components of lease expense were as follows:


	Year Ended December 31,
	2024		2023		2022
Lease cost
Operating lease cost	$	30.6	$	18.3	$	17.7
Short-term lease cost		45.2		56.7		35.0
Variable lease cost		46.0		26.0		17.9
Finance lease cost
Amortization of right-of-use assets		55.3		48.2		20.3
Interest expense		14.5		14.0		3.5
Total lease cost	$	191.6	$	163.2	$	94.4

Summary of Maturities of Lease Liabilities Under Non-cancellable Leases

The following table presents the maturities of our lease liabilities under non-cancellable leases as of December 31, 2024:


	Operating Leases			Finance Leases

2025	$	22.2		$	70.3
2026		24.9			68.6
2027		24.5			61.5
2028		19.9			53.4
2029		16.1			44.3
Thereafter		26.5			37.2
Total undiscounted cash flows		134.1			335.3
Less imputed interest		(18.5	)		(37.2	)
Total lease liabilities	$	115.6		$	298.1