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Goodwill and Intangible Assets, Net - Intangible Assets (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Jan. 31, 2021 | Jan. 31, 2020
Finite-Lived Intangible Assets, Net [Abstract] |  |
Weighted-average Remaining Useful Life (Years) | 6 years 6 months |
Estimated Fair Value | $ 205,610 | $ 114,610
Accumulated Amortization | (84,362) | (58,744)
Acquisition-related intangibles, net, excluding cumulative translation adjustment | 121,248 | 55,866
Cumulative translation adjustment | 580 | 634
Acquisition-related Intangibles, Net | $ 121,828 | 56,500
Existing technology |  |
Finite-Lived Intangible Assets, Net [Abstract] |  |
Weighted-average Remaining Useful Life (Years) | 3 years 10 months 24 days |
Estimated Fair Value | $ 72,994 | 31,594
Accumulated Amortization | (35,613) | (25,164)
Acquisition-related intangibles, net, excluding cumulative translation adjustment | $ 37,381 | 6,430
Customer contracts & related relationships |  |
Finite-Lived Intangible Assets, Net [Abstract] |  |
Weighted-average Remaining Useful Life (Years) | 7 years 10 months 24 days |
Estimated Fair Value | $ 110,082 | 65,782
Accumulated Amortization | (29,393) | (19,071)
Acquisition-related intangibles, net, excluding cumulative translation adjustment | $ 80,689 | 46,711
Other |  |
Finite-Lived Intangible Assets, Net [Abstract] |  |
Weighted-average Remaining Useful Life (Years) | 1 year 2 months 12 days |
Estimated Fair Value | $ 22,534 | 17,234
Accumulated Amortization | (19,356) | (14,509)
Acquisition-related intangibles, net, excluding cumulative translation adjustment | $ 3,178 | $ 2,725

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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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