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Property, Plant, and Equipment | 12 Months Ended
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Dec. 31, 2018
Property, Plant and Equipment [Abstract] |
Property, Plant, and Equipment | Property, Plant, and Equipment Property, plant, and equipment consisted of the following (in thousands):
| December 31,
| 2018 |  | 2017
Land | $ | 3,951 |  |  | $ | 3,951 |
Buildings | 24,533 |  |  | 24,589 |
Building improvements | 45,067 |  |  | 33,189 |
Leasehold improvements | 9,095 |  |  | 6,513 |
Computer hardware and software | 66,542 |  |  | 61,835 |
Manufacturing test equipment | 27,378 |  |  | 21,312 |
Furniture and fixtures | 6,904 |  |  | 6,363 |
| 183,470 |  |  | 157,752 |
Less: accumulated depreciation | (92,074 | ) |  | (79,704 | )
| $ | 91,396 |  |  | $ | 78,048 |
The cost of disposed property, plant, and equipment totaling $6,367,000 and $6,327,000 was removed from both the asset and accumulated depreciation balances in 2018 and 2017, respectively. Gains and losses on these disposals were immaterial in both periods. Buildings include rental property with a cost basis of $800,000 and $5,750,000 as of December 31, 2018 and 2017, respectively, and accumulated depreciation of $234,000 and $3,069,000 as of December 31, 2018 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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -URI http://asc.fasb.org/topic&trid=2155823 + Details
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