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Leases (Tables)
12 Months Ended
Dec. 31, 2022
Leases [Abstract]  
Components of Lease Expense
The components of lease expense were as follows (U.S. dollars in thousands):

    Year Ended December 31,  
   
2022
    2021
    2020
 
Operating lease expense
                 
Operating lease cost
  $ 39,682    
$
48,447
   
$
51,828
 
Variable lease cost
    6,061      
5,734
     
4,366
 
Short-term lease cost
    210      
592
     
1,056
 
Sublease income
       
(5,663
)
   
(5,052
)
Finance lease expense
                       
Amortization of right-of-use assets
    2,371      
2,398
     
1,023
 
Interest on lease liabilities
    268      
319
     
154
 
Total lease expense
  $ 48,592    
$
51,827
   
$
53,375
 
Supplemental Cash Flow Information Related to Leases
Supplemental cash flow information related to leases was as follows (U.S. dollars in thousands):

 
Year Ended December 31,
 
     2022
   
2021
   
2020
 
Operating cash outflow from operating leases
   $ 37,174    
$
51,570
   
$
56,395
 
Operating cash outflow from finance leases
   $ 243    
$
322
   
$
138
 
Financing cash outflow from finance leases
   $ 1,919    
$
1,871
   
$
709
 
Right-of-use assets obtained in exchange for operating lease obligations
   $ 34,026    
$
25,427
   
$
82,662
 
Right-of-use assets obtained in exchange for finance lease obligations
   $ 9,797    
$
74
   
$
9,206
 
Maturities of Lease Liabilities
Maturities of lease liabilities were as follows (U.S. dollars in thousands):

Year Ending December 31,
 
Operating
Leases
   
Finance Leases
 
2023
 
$
26,086
   
$
3,836
 
2024
   
18,808
     
3,428
 
2025
   
13,338
     
3,371
 
2026
   
8,692
     
3,277
 
2027
   
7,690
     
2,933
 
Thereafter
   
42,385
     
 
Total
   
116,999
     
16,845
 
Less: Finance charges
   
15,542
     
1,362
 
Total principal liability
 
$
101,457
   
$
15,483