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Leases

12 Months Ended

Dec. 31, 2021

8. Leases

We have operating leases and subleases for office space, temporary housing, storage and shops. Our leases have remaining lease terms of less than one year to approximately nine years and most include options to extend the lease term, at our discretion, for an additional six months to ten years. We are not, however, reasonably certain that we will exercise any of the options to extend and as such, they have not been included in the remaining lease terms.

Financial and other supplemental information related to our operating leases follows.


		December 31,
(in thousands)	Classification	2021		2020
ROU assets	Operating lease ROU assets	$	17,491	$	19,236

Lease liabilities
Current	Accrued liabilities	$	2,940	$	3,564
Noncurrent	Operating lease liabilities		15,940		16,925
Total lease liabilities		$	18,880	$	20,489


	Year Ended December 31,
(in thousands)	2021		2020		2019
Operating lease cost	$	4,836	$	4,508	$	3,966
Short-term lease cost		169		52		348
Variable lease cost		2,123		1,652		1,607
Total lease cost	$	7,128	$	6,212	$	5,921


	Year Ended December 31,
(in thousands)	2021		2020		2019
Operating cash flows - cash paid for amounts included in the measurement of operating lease liabilities	$	6,568	$	5,885	$	5,420
Operating lease ROU assets obtained in exchange for lease liabilities, net ⁽¹⁾		2,135		4,812		2,247

(1)	Includes decreases to our ROU assets of $0.3 million and $0.1 million related to lease amendments and terminations during the years ended December 31, 2021 and 2020, respectively.


	December 31,
	2021		2020		2019
Weighted average remaining lease term (in years)	7.2		7.9		8.2
Weighted average discount rate	4.6	%	4.8	%	5.3	%

Remaining maturities of our lease liabilities as of December 31, 2021 were as follows:


(in thousands)
2022	$	3,454
2023		3,453
2024		2,998
2025		2,575
2026		2,321
Thereafter		7,628
Total lease payments		22,429
Less: Interest		(3,549)
Total lease liabilities	$	18,880