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v3.25.4

Segment Reporting - Schedule of Financial Information by Segment (Details) $ in Thousands | 12 Months Ended | 24 Months Ended
--- | --- | ---
Dec. 31, 2025 USD ($) segment | Dec. 31, 2024 USD ($) | Dec. 31, 2023 USD ($) | Dec. 31, 2025 USD ($)
Segment Reporting [Abstract] |  |  |  |
Number of Reportable Segments | segment | 2 |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenue | $ 134,987 | $ 144,948 | $ 128,349 |
Cost of revenue | 47,056 | 48,015 | 41,270 |
Gross profit | 87,931 | 96,933 | 87,079 |
Operating expenses: |  |  |  |
General and administrative | 29,769 | 33,074 | 28,864 |
Sales and marketing | 20,926 | 25,423 | 22,164 |
Research and development | 13,034 | 16,236 | 17,001 |
Restructuring charges | 313 | 2,476 | 0 | $ 2,789
Total operating expenses | 64,042 | 77,209 | 68,029 |
Income from operations | 23,889 | 19,724 | 19,050 |
Water |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenue | 134,702 | 144,310 | 127,725 |
Emerging Technologies |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenue | 285 | 638 | 624 |
Operating Segments | Water |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenue | 134,702 | 144,310 | 127,725 |
Cost of revenue | 46,923 | 47,389 | 40,290 |
Gross profit | 87,779 | 96,921 | 87,435 |
Operating expenses: |  |  |  |
General and administrative | 5,686 | 8,127 | 7,751 |
Sales and marketing | 13,664 | 15,683 | 13,691 |
Research and development | 6,344 | 4,523 | 4,251 |
Restructuring charges | 105 | 1,147 | 0 | 1,252
Total operating expenses | 25,799 | 29,480 | 25,693 |
Income from operations | 61,980 | 67,441 | 61,742 |
Operating Segments | Emerging Technologies |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenue | 285 | 638 | 624 |
Cost of revenue | 133 | 626 | 980 |
Gross profit | 152 | 12 | (356) |
Operating expenses: |  |  |  |
General and administrative | 2,350 | 3,821 | 3,927 |
Sales and marketing | 5,449 | 7,340 | 6,053 |
Research and development | 6,690 | 11,713 | 12,750 |
Restructuring charges | 47 | 832 | 0 | 879
Total operating expenses | 14,536 | 23,706 | 22,730 |
Income from operations | (14,384) | (23,694) | (23,086) |
Corporate |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenue | 0 | 0 | 0 |
Cost of revenue | 0 | 0 | 0 |
Gross profit | 0 | 0 | 0 |
Operating expenses: |  |  |  |
General and administrative | 21,733 | 21,126 | 17,186 |
Sales and marketing | 1,813 | 2,400 | 2,420 |
Research and development | 0 | 0 | 0 |
Restructuring charges | 161 | 497 | 0 | $ 658
Total operating expenses | 23,707 | 24,023 | 19,606 |
Income from operations | $ (23,707) | $ (24,023) | $ (19,606) |

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