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Leases (Tables)
 12 Months Ended
Dec. 31, 2020
Leases [Abstract]  
Schedule of lease-related assets and liabilities Lease-related assets and liabilities as of December 31, 2020 and 2019 are as follows:
20202019
(in $ thousands)
Assets:
Operating lease assets, net of accumulated amortization106,479 99,028 
Finance lease assets, net of accumulated depreciation3,065 4,312 
Total lease assets109,544 103,340 
Liabilities:
Operating lease liabilities119,089 113,843 
Finance lease liabilities1,911 3,716 
Total lease liabilities121,000 117,559 
Other information related to operating and finance leases Other information related to operating and finance leases during the years ended December 31, 2020 and 2019 is as follows:
22
OperatingFinanceOperatingFinance
Cash paid for amounts included in the measurement of lease liabilities (in $ thousands)40,4521,91343,2073,076
Lease assets obtained in exchange for lease obligations (in $ thousands)40,557—51,188—
Weighted average remaining lease term (years):4.52.14.72.5
Weighted average discount rate3.7 %4.0 %4.4 %4.7 %
Future minimum lease payments under operating leases
Future minimum lease payments under operating and finance leases as of December 31, 2020 are as follows:
OperatingFinance
(in $ thousands)
202137,490 957 
202229,296 957 
202323,589 80 
202417,543 — 
20259,124 — 
Thereafter11,922 — 
Total future minimum lease payments128,964 1,994 
Less: imputed interest(9,875)(83)
Net future minimum lease payments119,089 1,911 
Future minimum lease payments under finance leases
Future minimum lease payments under operating and finance leases as of December 31, 2020 are as follows:
OperatingFinance
(in $ thousands)
202137,490 957 
202229,296 957 
202323,589 80 
202417,543 — 
20259,124 — 
Thereafter11,922 — 
Total future minimum lease payments128,964 1,994 
Less: imputed interest(9,875)(83)
Net future minimum lease payments119,089 1,911