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Property and Equipment | 12 Months Ended
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Dec. 31, 2023
Property, Plant and Equipment [Abstract] |
Property and Equipment | Property and Equipment The composition of property and equipment as of December 31, 2022 and 2023 is as follows (in thousands):
| December 31, 2022 |  | December 31, 2023 |  | Estimated useful life (years)
Land | $ | 3,597 |  |  | $ | 1,499 |  |  | — |
Buildings and improvements | 9,856 |  |  | 6,707 |  |  | 5-40
Furniture and office equipment | 40,539 |  |  | 40,520 |  |  | 5-7
Computer hardware | 13,152 |  |  | 12,339 |  |  | 3-7
Computer software | 212,832 |  |  | 173,537 |  |  | 3-10
Leasehold improvements | 70,921 |  |  | 72,351 |  |  | 3-15
Construction in progress | 7,016 |  |  | 6,525 |  |  | — |
| 357,913 |  |  | 313,478 |  |  |
Accumulated depreciation and amortization | (225,068) |  |  | (194,949) |  |  |
| $ | 132,845 |  |  | $ | 118,529 |  |  |
Construction in progress includes costs associated with the construction and renovation of facilities and the development of information technology applications.

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- Definition The entire disclosure for long-lived, physical asset used in normal conduct of business and not intended for resale. Includes, but is not limited to, work of art, historical treasure, and similar asset classified as collections. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 360 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org//360/tableOfContent Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name Accounting Standards Codification -Section 50 -Paragraph 6 -SubTopic 360 -Topic 958 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480321/958-360-50-6 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (d) -SubTopic 360 -Topic 958 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480321/958-360-50-1 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Name Accounting Standards Codification -Section 50 -Paragraph 7 -SubTopic 360 -Topic 958 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480321/958-360-50-7 + Details
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