Leases (Tables)

3 Months Ended

Mar. 31, 2021

Leases [Abstract]

Components of Lease Expense

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

	Three Months Ended March 31,
	2021			2020
Operating lease expense
Operating lease cost	$	12,815		$	13,136
Variable lease cost		1,368			974
Short-term lease cost		339			45
Sublease income		(1,984	)		(1,131	)
Finance lease expense
Amortization of right-of-use assets		611			—
Interest on lease liabilities		88			—
Total lease expense	$	13,237		$	13,024

Supplemental Cash Flow Information Related to Leases

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

	Three Months Ended March 31,
	2021		2020
Operating cash outflow from operating leases	$	14,149	$	13,367
Operating cash outflow from finance leases	$	89	$	—
Financing cash outflow from finance leases	$	483	$	—
Right-of-use assets obtained in exchange for operating lease obligations	$	10,891	$	21,822
Right-of-use assets obtained in exchange for finance lease obligations	$	49	$	—

Maturities of Operating Lease Liabilities

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

Year Ending December 31	Operating Leases		Finance Leases
2021	$	35,534	$	1,661
2022		34,437		2,226
2023		23,875		2,144
2024		18,976		2,033
2025		14,298		1,436
Thereafter		41,344		260
Total		168,464		9,760
Less: Finance charges		21,060		805
Total principal liability	$	147,404	$	8,955