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Intangible Assets (Details) - USD ($) $ in Thousands	Jul. 31, 2022	Jan. 31, 2022
Finite-Lived Intangible Assets [Line Items]
Intangible assets, cost	$ 644,537	$ 599,157
Intangible assets, amortization cost	391,972	369,548
Intangible assets. net	252,565	229,609
Customer agreements and relationships
Finite-Lived Intangible Assets [Line Items]
Intangible assets, cost	266,481	251,402
Intangible assets, amortization cost	141,408	135,380
Existing technology
Finite-Lived Intangible Assets [Line Items]
Intangible assets, cost	355,275	326,411
Intangible assets, amortization cost	234,197	218,953
Trade names
Finite-Lived Intangible Assets [Line Items]
Intangible assets, cost	8,990	9,038
Intangible assets, amortization cost	6,894	6,677
Non-compete covenants
Finite-Lived Intangible Assets [Line Items]
Intangible assets, cost	13,791	12,306
Intangible assets, amortization cost	$ 9,473	$ 8,538

X

- 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

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Amount before 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 928
-SubTopic 340
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6473545&loc=d3e61844-108004

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Amount after 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 926
-SubTopic 20
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=120154696&loc=d3e54445-107959

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