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Property and Equipment (Tables) | 12 Months Ended
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Dec. 31, 2018
Property, Plant and Equipment [Abstract] |
Schedule of Property and Equipment | Property and equipment consisted of the following (in thousands):
|  | As of December 31, |
|  | 2018 |  |  | 2017 |
Land |  | $ | — |  |  | $ | 66 |
Buildings |  |  | — |  |  |  | 218 |
Leasehold improvements |  |  | 6,717 |  |  |  | 6,152 |
Furniture, fixtures and equipment |  |  | 38,369 |  |  |  | 30,863 |
Vehicles and equipment |  |  | 177,969 |  |  |  | 153,744 |
|  |  | 223,055 |  |  |  | 191,043 |
Less: accumulated depreciation and amortization |  |  | (132,938 | ) |  |  | (109,968 | )
|  | $ | 90,117 |  |  | $ | 81,075 |
Schedule of Depreciation and Amortization Expense on Property and Equipment, by Income Statement Category | During the twelve months ended December 31, 2018 and 2017 we recorded the following depreciation and amortization expense on our property and equipment, by income statement category (in thousands):
|  | As of December 31, |
|  | 2018 |  |  | 2017 |  |  | 2016 |
Cost of sales |  | $ | 31,526 |  |  | $ | 26,731 |  |  | $ | 22,294 |
Administrative |  |  | 1,779 |  |  |  | 1,554 |  |  |  | 1,276 |

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- Definition Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(13)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 + Details
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