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Leases (Tables)

9 Months Ended

Sep. 30, 2021

Leases [Abstract]

Components of Lease Expense

The components of lease expense were as follows (U.S. dollars in thousands):

		Three Months Ended September 30,								Nine Months Ended September 30,
		2021				2020				2021				2020
Operating lease expense
Operating lease cost		$	12,193			$	13,038			$	37,408			$	39,043
Variable lease cost			1,121				678				4,145				2,062
Short-term lease cost			13				118				590				258
Sublease income			(1,352	)			(1,075	)			(5,164	)			(3,264	)
Finance lease expense
Amortization of right-of-use assets			594				—				1,811				—
Interest on lease liabilities			77				—				248				—
Total lease expense		$	12,646			$	12,759			$	39,038			$	38,099

Supplemental Cash Flow Information Related to Leases

Supplemental cash flow information related to leases was as follows (U.S. dollars in thousands):

		Nine Months Ended September 30,
		2021				2020
Operating cash outflow from operating leases		$	40,072			$	40,865
Operating cash outflow from finance leases		$	250			$	—
Financing cash outflow from finance leases		$	1,409			$	—
Right-of-use assets obtained in exchange for operating lease obligations		$	19,120			$	62,514
Right-of-use assets obtained in exchange for finance lease obligations		$	59			$	—

Maturities of Lease Liabilities

Maturities of lease liabilities were as follows (U.S. dollars in thousands):

Year Ending December 31		Operating Leases				Finance Leases
2021		$	11,911			$	535
2022			35,502				2,150
2023			24,955				2,069
2024			19,610				1,958
2025			14,725				1,385
Thereafter			41,327				262
Total			148,030				8,359
Less: Finance charges			18,241				622
Total principal liability		$	129,789			$	7,737