Right-of-use assets and lease liabilities consisted of the following as of December 31:

	2021		2020
	(in thousands)
Assets
Operating lease right-of-use assets, net	$	457,833	$	274,562
Finance lease right-of-use assets, net (included in property, plant and equipment, net)		4,111		34,905
Total right-of-use assets	$	461,944	$	309,467
Liabilities
Current
Current portion of operating lease liabilities	$	96,680	$	61,625
Current portion of finance lease liabilities (included in current maturities of long-term debt)		1,439		12,178
Noncurrent
Noncurrent portion of operating lease liabilities		375,289		219,239
Noncurrent portion of finance lease liabilities (included in long-term debt, net of current maturities)		2,348		11,695
Total lease liabilities	$	475,756	$	304,737


	2021		2020
	(in thousands)
Operating lease costs (1)	$	133,009	$	85,798
Finance lease costs:
Amortization of finance lease right-of-use assets		2,166		6,325
Interest on finance lease liabilities		360		1,424
Variable lease costs		27,276		17,607
Total lease costs	$	162,811	$	111,154

	Finance Leases			Operating Leases
	(in thousands)
2022	$	1,570		$	115,675
2023		1,337			102,699
2024		480			85,724
2025		257			62,585
2026		128			50,872
Thereafter		309			142,084
Total lease payments		4,081			559,639
Less: amount representing interest		(294	)		(87,670	)
Present value of lease liabilities		3,787			471,969
Less: current portion		(1,439	)		(96,680	)
Long-term lease liabilities, net of current portion	$	2,348		$	375,289

Weighted average lease terms and discount rates as of December 31 were as follows:

	2021			2020
Weighted average remaining lease term (years)
Operating leases		6.3			6.3
Finance leases		3.4			2.1
Weighted average discount rate
Operating leases		5.3	%		6.3	%
Finance leases		4.4	%		5.9	%

The following table presents cash paid for amounts included in the measurement of lease liabilities for the years ended December 31:

	2021		2020
	(in thousands)
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$	118,314	$	82,559
Operating cash flows from finance leases		360		1,424
Financing cash flows from finance leases		2,709		13,409

Residual value guarantees in our lease agreements are not material. Based upon the expectation that none of these leased assets will have a residual value at the end of the lease term that is materially less than the value specified in the related operating lease agreement or that we will purchase the equipment at the end of the lease term, we do not believe it is probable that we will be required to fund any amounts under the terms of these guarantee arrangements. Accordingly, these guarantees have not been recognized in the calculation of our right-of-use assets and lease liabilities. Our lease agreements do not impose any significant restrictions or covenants on us. As of December 31, 2021, we do not have any material leases that have been signed but have not yet commenced and are not

reflected on our consolidated balance sheet. Leases with related parties are not significant as of and for the years ended December 31, 2021, 2020, and 2019.

In addition to the operating and finance lease arrangements described above, the Company is party to 121 individual property lease agreements with a single lessor as of December 31, 2021. These lease agreements had initial terms ranging from nine to 15 years with renewal options in five-year increments providing for up to approximately 30-year total lease terms. A related agreement between the lessor and the Company gives the Company the right to acquire a limited number of the leased facilities at fair market value. These purchase rights represent a form of continuing involvement with these properties, which precluded sale-leaseback accounting. As a result, the Company treats all of the properties that it leases from this lessor as a financing arrangement.

We were deemed the owner of certain of our facilities during their construction period based on an evaluation made in accordance with the Leases topic of the Codification. Effectively, a sale and leaseback of these facilities occurred when construction was completed and the lease term began. These transactions did not qualify for sale-leaseback accounting. As a result, the Company treats the lease of these facilities as a financing arrangement.

As of December 31, 2021, other finance obligations consist of $203.0 million, with cash payments of $21.2 million for the year ended December 31, 2021. These other finance obligations are included on the consolidated balance sheet as part of long-term debt. The related assets are recorded as components of property, plant, and equipment on the consolidated balance sheet.

Future maturities for other finance obligations as of December 31, 2021 were as follows (in thousands):

2022	$	16,885
2023		16,893
2024		16,911
2025		16,911
2026		16,690
Thereafter		157,653
Total	$	241,943