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Goodwill - Changes in Carrying Amounts of Goodwill by Segment (Detail) $ in Thousands	6 Months Ended
	Jun. 30, 2023 USD ($)
Goodwill [Roll Forward]
Goodwill, beginning balance	$ 5,372,562
Goodwill acquired from 2023 acquisitions	23,500
Purchase price allocation adjustments and other	25,400
Foreign currency translation adjustments	28,100
Goodwill, ending balance	5,449,590
Electronic Instruments Group
Goodwill [Roll Forward]
Goodwill, beginning balance	4,236,100
Goodwill acquired from 2023 acquisitions	0
Purchase price allocation adjustments and other	25,400
Foreign currency translation adjustments	16,900
Goodwill, ending balance	4,278,400
Electromechanical Group
Goodwill [Roll Forward]
Goodwill, beginning balance	1,136,500
Goodwill acquired from 2023 acquisitions	23,500
Purchase price allocation adjustments and other	0
Foreign currency translation adjustments	11,200
Goodwill, ending balance	$ 1,171,200

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 in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.

+ References

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X

- Definition

Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

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X

- 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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- Definition

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