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Goodwill and Intangible Assets - Changes in Carrying Amounts of Goodwill (Details) $ in Thousands	3 Months Ended
	Apr. 30, 2023 USD ($)
Goodwill [Roll Forward]
Beginning balance	$ 1,281,703
Goodwill, purchase accounting adjustments	7,125
Ending balance	1,288,828
Operating Segments | Signal Integrity
Goodwill [Roll Forward]
Beginning balance	274,085
Ending balance	274,085
Operating Segments | Advanced Protection and Sensing
Goodwill [Roll Forward]
Beginning balance	14,639
Ending balance	14,639
Operating Segments | IoT System
Goodwill [Roll Forward]
Beginning balance	61,582
Ending balance	61,582
Operating Segments | IoT Connected Services
Goodwill [Roll Forward]
Beginning balance	0
Ending balance	0
Corporate, Non-Segment
Goodwill [Roll Forward]
Beginning balance	931,397
Goodwill, purchase accounting adjustments	7,125
Ending balance	$ 938,522

X

- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

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- Definition

Amount of increase (decrease) from adjustments after acquisition date under purchase accounting of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

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