Property and equipment |
12 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2020 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Property and equipment | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Property and equipment | 8. Property and equipment The following is a summary of property and equipment, at cost less accumulated depreciation and amortization:
Depreciation and amortization expense, which includes depreciation and amortization for property and equipment under finance leases, for the years ended December 31, 2020, 2019, and 2018 amounted to $78,313, $70,862, and $78,837, respectively. During the years ended December 31, 2020, 2019, and 2018, we recognized $23, $370, and $148, respectively, of impairment losses primarily related to construction in progress projects that were abandoned. During the years ended December 31, 2020 and 2018, we also recognized $39 and $90, respectively, of losses on disposals of property and equipment. |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||