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Goodwill By Reportable Segment (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Goodwill [Line Items]
Goodwill	$ 616,281	$ 630,729
Accumulated impairment of goodwill	(151,229)	(151,229)
Total	465,052	479,500
Photonics
Goodwill [Line Items]
Goodwill	201,864	214,564
Accumulated impairment of goodwill	(102,461)	(102,461)
Total	99,403	112,103
Vision
Goodwill [Line Items]
Goodwill	162,128	160,675
Accumulated impairment of goodwill	(31,722)	(31,722)
Total	130,406	128,953
Precision Motion
Goodwill [Line Items]
Goodwill	252,289	255,490
Accumulated impairment of goodwill	(17,046)	(17,046)
Total	$ 235,243	$ 238,444

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.

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