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ACCOUNTING POLICIES (Tables) | 12 Months Ended
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Dec. 31, 2022
Accounting Policies [Abstract] |
Schedule of supplemental cash flow information | Supplemental cash flow information The following table shows supplemental cash flow information (in thousands):
| Year Ended December 31,
| 2022 |  | 2021 |  | 2020
Supplemental disclosures of cash flow information: |  |  |  |  |
Cash paid during the period: |  |  |  |  |
Interest paid, net of amounts capitalized | $ | 1,777 |  |  | $ | 1,775 |  |  | $ | 1,808 |
Income taxes paid, net | 2,562 |  |  | 2,262 |  |  | 1,452 |
Non-cash investing and financing activities: |  |  |  |  |
Purchases of property and equipment included in accounts payable and accrued liabilities | $ | 2,527 |  |  | $ | 508 |  |  | $ | 336 |
See also Note 11—Leases for additional supplemental disclosures of cash flow information related to our leases.
Schedule of estimated useful lives of the fixed assets | Property and equipment are depreciated using the straight-line method over the estimated useful lives of the related assets or the term of the related finance lease, whichever is shorter, as follows:
| Life (years)
Building | 40
Land improvements | 20
Building machinery and equipment | 15-20
Furniture and equipment | 5-7
Computer hardware | 3-4
Computer software, including internal-use software and website development | 2-4
Schedule of valuation techniques and unobservable inputs | The following table summarizes the valuation techniques and significant unobservable inputs used in the fair value measurement of our Level 3 equity securities:
Investment |  | Fair Value |  | Valuation technique |  | Unobservable inputs |  | Inputs
tZERO |  | $ | 78,867 |  |  | Market approach - transaction backsolve with an option pricing model |  | Term to liquidity |  | 5.0 years
|  |  |  |  |  | Volatility |  | 125%
|  |  |  |  |  | Percentage change in enterprise value for guideline public companies |  | (32.4)%
SpeedRoute |  | 3,920 |  |  | Market approach - recent transactions |  | N/A |  | N/A
Total |  | $ | 82,787 |  |  |  |  |  |  |
Valuation technique |  | Unobservable inputs |  | Range (1) |  | Weighted average (2)
Market approach |  | Enterprise value to revenue multiple |  | 0.88x |  | 0.88x
Discounted cash flows - exit multiple |  | Discount rate |  | 9.0% - 35.0% |  | 32.4%
| Enterprise value to revenue multiple |  | 0.75x - 5.00x |  | 4.40x
| Projected terminal year |  | 2023 - 2027 |  | 2025
| Annual revenue growth rate |  | 1.3% - 124.0% |  | 109.4%
| Annual EBITDA % of revenues |  | 5.2% - 41.2% |  | 36.3%
Discounted cash flows - perpetual growth |  | Discount rate |  | 30.0% |  | 30.0%
| Projected terminal year |  | 2028 |  | 2028
| Perpetual revenue growth rate |  | 3.0% |  | 3.0%
| Annual revenue growth rate |  | 25.7% |  | 25.7%
| Annual EBITDA % of revenues |  | 14.9% |  | 14.9%
__________________________________________ (1) — The range for the Annual revenue growth rate and Annual EBITDA % of revenues are based on the weighted average metrics for the annual periods of the separate cash flow models for the respective component. (2) — Unobservable inputs were weighted by the relative fair value based on the fair value of the underlying components subjected to the identified valuation technique. For projected terminal year, the amount represents the median of the inputs and is not a weighted average.

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