v3.20.4

Property, Plant And Equipment | 12 Months Ended
--- | ---
Dec. 31, 2020
Property, Plant and Equipment [Abstract] |
Property, Plant And Equipment | NOTE 7. PROPERTY, PLANT AND EQUIPMENT Property, plant and equipment is summarized as follows at December 31:
| Lives (years) |  | 2020 |  | 2019
Land | - |  | $ | 2,571 |  |  | $ | 2,651 |
Buildings and improvements | 2-44 |  | 39,418 |  |  | 38,924 |
Central office equipment 1 | 3-10 |  | 95,981 |  |  | 96,061 |
Cable, wiring and conduit | 15-50 |  | 75,409 |  |  | 72,042 |
Satellites | 14-17 |  | 908 |  |  | 2,489 |
Other equipment | 3-20 |  | 90,883 |  |  | 94,951 |
Software | 3-7 |  | 18,482 |  |  | 22,244 |
Under construction | - |  | 4,099 |  |  | 4,176 |
|  |  | 327,751 |  |  | 333,538 |
Accumulated depreciation and amortization |  |  | 200,436 |  |  | 203,410 |
Property, plant and equipment - net |  |  | $ | 127,315 |  |  | $ | 130,128 |
1 Includes certain network software. Our depreciation expense was $20,277 in 2020, $20,285 in 2019 and $20,083 in 2018. Depreciation expense included amortization of software totaling $3,483 in 2020, $3,313 in 2019 and $3,092 in 2018. In December 2020, we reassessed our grouping of long-lived assets and identified certain impairment indicators, requiring us to evaluate the recoverability of the long-lived assets of our video business. Based on this evaluation, we determined that these assets were not fully recoverable and recognized pre-tax impairment charges totaling $7,255, of which $1,681 relates to property, plant and equipment, including satellites. The reduced carrying amounts of the impaired assets became their new cost basis. In 2019, we recorded a noncash pre-tax charge of $1,290 to abandon copper assets that we no longer expect will be utilized to support future network activity. The abandonment was considered outside the ordinary course of business.

X
- References No definition available. + Details
Name: | us-gaap_PropertyPlantAndEquipmentAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- 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
Name: | us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration