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Property and Equipment (Tables)
12 Months Ended
Dec. 31, 2021
Property, Plant and Equipment [Abstract]  
Property and equipment
Property and equipment consists of the following (in thousands):
As of December 31,
20212020
Ships$31,357,703 $29,872,655 
Ship improvements2,152,457 2,108,922 
Ships under construction1,180,486 1,078,243 
Land, buildings and improvements, including leasehold improvements and port facilities746,785 524,849 
Computer hardware and software, transportation equipment and other1,650,249 1,678,903 
Total property and equipment37,087,680 35,263,572 
Less—accumulated depreciation and amortization(1)
(11,179,731)(10,016,977)
$25,907,949 $25,246,595 
(1)Amount includes accumulated depreciation and amortization for assets in service.