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Intangible Assets (Details) - USD ($) $ in Thousands | Jan. 31, 2022 | Jan. 31, 2021
--- | --- | ---
Intangible assets, cost | $ 599,157 | $ 555,423
Intangible assets, amortization cost | 369,548 | 315,431
Intangible assets. net | 229,609 | 239,992
Customer agreements and relationships |  |
Intangible assets, cost | 251,402 | 240,479
Intangible assets, amortization cost | 135,380 | 119,361
Existing technology |  |
Intangible assets, cost | 326,411 | 295,161
Intangible assets, amortization cost | 218,953 | 183,539
Trade names |  |
Intangible assets, cost | 9,038 | 8,844
Intangible assets, amortization cost | 6,677 | 5,996
Non-compete covenants |  |
Intangible assets, cost | 12,306 | 10,939
Intangible assets, amortization cost | $ 8,538 | $ 6,535

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