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Goodwill and Other Intangible Assets | 12 Months Ended
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Dec. 31, 2021
Goodwill and Intangible Assets Disclosure [Abstract] |
Goodwill and Other Intangible Assets | Goodwill and Other Intangible Assets Changes in the carrying amount of goodwill by reportable segment are as follows:
(In thousands) | Fluids Systems |  | Industrial Solutions |  | Total
Balance at December 31, 2019 | $ | — |  |  | $ | 42,332 |  |  | $ | 42,332 |
Effects of foreign currency | — |  |  | 112 |  |  | 112 |
Balance at December 31, 2020 | — |  |  | 42,444 |  |  | 42,444 |
Acquisition | — |  |  | 4,871 |  |  | 4,871 |
Effects of foreign currency | — |  |  | (32) |  |  | (32) |
Balance at December 31, 2021 | $ | — |  |  | $ | 47,283 |  |  | $ | 47,283 |
We completed the annual evaluation of the carrying value of our goodwill and other indefinite-lived intangible assets as of November 1, 2021 and determined that the fair value was in excess of the net carrying value, and therefore, no impairment was required. In March 2020, primarily as a result of the collapse in oil prices and the expected declines in the U.S. land E&P markets, along with a significant decline in the quoted market prices of our common stock, we considered these developments to be a potential indicator of impairment that required us to complete an interim goodwill impairment evaluation. As such, in March 2020, we estimated the fair value of our Site and Access Solutions reporting unit based on our current forecasts and expectations for market conditions and determined that even though the estimated fair value had decreased from our 2019 annual evaluation, the fair value remained substantially in excess of its net carrying value, and therefore, no impairment was required. During the second quarter and third quarter of 2020, we determined that there were no further indicators of events or changes in circumstances that would more likely than not reduce the fair value below its carrying amount. We completed the annual evaluation of the carrying value of our goodwill and other indefinite-lived intangible assets as of November 1, 2020 and determined that the fair value was in excess of the net carrying value, and therefore, no impairment was required. In 2019, as a result of the decline in drilling activities and the projection of continued softness in the U.S. land market, as well as the decline in the quoted market prices of our common stock, we determined that it was more likely than not that the carrying value of our Fluids Systems reporting unit exceeded its estimated fair value such that goodwill was potentially impaired. As a result, we completed the evaluation to measure the amount of goodwill impairment determining a full impairment of goodwill related to the Fluids Systems reporting unit was required. As such, in the fourth quarter of 2019, we recognized an $11.4 million non-cash impairment charge to write-off all the goodwill related to the Fluids Systems reporting unit. Our impairment test includes a comparison of the carrying value of net assets of our reporting units, including goodwill, with their estimated fair values, which we estimate using a combination of a market multiple and discounted cash flow approach. Significant assumptions inherent in the evaluation include the estimated growth rates for future revenues and the discount rate. Our assumptions are based on historical data supplemented by current and anticipated market conditions. Other intangible assets consisted of the following:
| December 31, 2021 |  | December 31, 2020
(In thousands) | Gross Carrying Amount |  | Accumulated Amortization |  | Other Intangible Assets, Net |  | Gross Carrying Amount |  | Accumulated Amortization |  | Other Intangible Assets, Net
Technology related | $ | 20,315 |  |  | $ | (9,201) |  |  | $ | 11,114 |  |  | $ | 20,398 |  |  | $ | (7,958) |  |  | $ | 12,440 |
Customer related | 37,176 |  |  | (23,843) |  |  | 13,333 |  |  | 33,891 |  |  | (21,458) |  |  | 12,433 |
Total amortizing intangible assets | 57,491 |  |  | (33,044) |  |  | 24,447 |  |  | 54,289 |  |  | (29,416) |  |  | 24,873 |
Permits and licenses | 512 |  |  | — |  |  | 512 |  |  | 555 |  |  | — |  |  | 555 |
Total indefinite-lived intangible assets | 512 |  |  | — |  |  | 512 |  |  | 555 |  |  | — |  |  | 555 |
Total intangible assets | $ | 58,003 |  |  | $ | (33,044) |  |  | $ | 24,959 |  |  | $ | 54,844 |  |  | $ | (29,416) |  |  | $ | 25,428 |
Total amortization expense related to other intangible assets was $3.7 million, $4.5 million and $4.4 million in 2021, 2020 and 2019, respectively. In December 2021, we completed the acquisition of Lentzcaping, which resulted in additions to amortizable intangible assets of $3.3 million. See Note 2 for additional information. Estimated future amortization expense for the years ended December 31 is as follows:
(In thousands) | 2022 |  | 2023 |  | 2024 |  | 2025 |  | 2026 |  | Thereafter |  | Total
Technology related | $ | 1,245 |  |  | $ | 1,073 |  |  | $ | 1,051 |  |  | $ | 1,049 |  |  | $ | 1,049 |  |  | $ | 5,647 |  |  | $ | 11,114 |
Customer related | 2,785 |  |  | 2,260 |  |  | 1,843 |  |  | 1,533 |  |  | 1,268 |  |  | 3,644 |  |  | 13,333 |
Total future amortization expense | $ | 4,030 |  |  | $ | 3,333 |  |  | $ | 2,894 |  |  | $ | 2,582 |  |  | $ | 2,317 |  |  | $ | 9,291 |  |  | $ | 24,447 |
The weighted average amortization period for technology related and customer related intangible assets is 14 years and 13 years, respectively.

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