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REVENUE RECOGNITION - Contract cost balances (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024
Deferred commissions: |  |  |  |
Beginning balance | $ 27,737 | $ 21,862 | $ 27,480 | $ 21,237
Additions | 7,205 | 5,024 | 18,184 | 13,793
Amortization | (6,130) | (4,346) | (16,852) | (12,490)
Ending balance | 28,812 | 22,540 | 28,812 | 22,540
Impairment loss | $ 0 | $ 0 | $ 0 | $ 0
Minimum |  |  |  |
Deferred commissions: |  |  |  |
Contract costs, amortization period | 1 year |  | 1 year |
Maximum |  |  |  |
Deferred commissions: |  |  |  |
Contract costs, amortization period | 3 years |  | 3 years |

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- Definition Amount, after accumulated amortization and accumulated impairment loss, of asset recognized from cost incurred to obtain or fulfill contract with customer; classified as noncurrent. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 340 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479483/340-40-50-3 + Details
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