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Property and Equipment (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021
Property, Plant and Equipment |  |
Net book value of property and equipment decreased | $ 8,222 |
Net book value of property and equipment decreased (as a percent) | 31.10% |
Capital expenditure purchases | $ 1,778 |
Depreciation expense | 9,795 |
Property and equipment, Gross | 244,830 | $ 253,066
Less accumulated depreciation | (226,703) | (226,717)
Property and equipment, net | 18,127 | 26,349
Land, building and other |  |
Property, Plant and Equipment |  |
Property and equipment, Gross | $ 12,553 | $ 15,156
Land, building and other | Minimum |  |
Property, Plant and Equipment |  |
Estimated useful lives of property and equipment (in years) | 3 years | 3 years
Land, building and other | Maximum |  |
Property, Plant and Equipment |  |
Estimated useful lives of property and equipment (in years) | 40 years | 40 years
Recording equipment |  |
Property, Plant and Equipment |  |
Property and equipment, Gross | $ 147,675 | $ 148,330
Recording equipment | Minimum |  |
Property, Plant and Equipment |  |
Estimated useful lives of property and equipment (in years) | 5 years | 5 years
Recording equipment | Maximum |  |
Property, Plant and Equipment |  |
Estimated useful lives of property and equipment (in years) | 10 years | 10 years
Vibrator energy sources |  |
Property, Plant and Equipment |  |
Property and equipment, Gross | $ 64,110 | $ 69,239
Vibrator energy sources | Minimum |  |
Property, Plant and Equipment |  |
Estimated useful lives of property and equipment (in years) | 5 years | 5 years
Vibrator energy sources | Maximum |  |
Property, Plant and Equipment |  |
Estimated useful lives of property and equipment (in years) | 15 years | 15 years
Vehicles |  |
Property, Plant and Equipment |  |
Property and equipment, Gross | $ 20,492 | $ 20,341
Vehicles | Minimum |  |
Property, Plant and Equipment |  |
Estimated useful lives of property and equipment (in years) | 1 year 6 months | 1 year 6 months
Vehicles | Maximum |  |
Property, Plant and Equipment |  |
Estimated useful lives of property and equipment (in years) | 10 years | 10 years

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- Definition Amount, after accumulated depreciation and amortization, of property, plant, and equipment and finance lease right-of-use asset, decreased, as a percentage. + References No definition available. + Details
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- Definition Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment. + References No definition available. + Details
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