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Property and Equipment | 12 Months Ended
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Dec. 31, 2017
Property and Equipment [Abstract] |
Property and Equipment | 4. Property and Equipment Property and equipment are comprised of the following (U.S. dollars in thousands):
|  | December 31, |
|  | 2016 |  |  | 2017 |
Land |  | $ | 33,158 |  |  | $ | 33,667 |
Buildings |  |  | 266,436 |  |  |  | 274,632 |
Construction in progress(1) |  |  | 31,124 |  |  |  | 53,125 |
Furniture and fixtures |  |  | 82,194 |  |  |  | 95,378 |
Computers and equipment |  |  | 143,014 |  |  |  | 156,994 |
Leasehold improvements |  |  | 109,863 |  |  |  | 123,479 |
Scanners |  |  | 10,578 |  |  |  | 11,212 |
Vehicles |  |  | 2,090 |  |  |  | 2,339 |
|  |  | 678,457 |  |  |  | 750,826 |
Less: accumulated depreciation |  |  | (233,725 | ) |  |  | (286,239 | )
|  | $ | 444,732 |  |  | $ | 464,587 |
| (1) | Construction in progress includes $25.8 million and $43.4 million as of December 31, 2016 and 2017, respectively, of eligible capitalized internal-use software development costs which will be reclassified to computers and equipment when placed into service.
Depreciation of property and equipment totaled $61.6 million, $60.8 million and $58.3 million for the years ended December 31, 2015, 2016 and 2017, respectively.

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- Definition The entire disclosure for long-lived, physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, accounting policies and methodology, roll forwards, depreciation, depletion and amortization expense, including composite depreciation, accumulated depreciation, depletion and amortization expense, useful lives and method used, income statement disclosures, assets held for sale and public utility disclosures. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -URI http://asc.fasb.org/topic&trid=2155823 + Details
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