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Goodwill and Other Intangible Assets - Changes in Carrying Amount of Goodwill (Detail) $ in Thousands	9 Months Ended
	Mar. 31, 2021 USD ($)
Goodwill [Roll Forward]
Balance-beginning of period	$ 1,239,009
Goodwill acquired	53,319
Finisar measurement period adjustments	(4,901)
Foreign currency translation	6,085
Balance-end of period	1,293,512
Photonic Solutions
Goodwill [Roll Forward]
Balance-beginning of period	1,052,494
Goodwill acquired	0
Finisar measurement period adjustments	(4,901)
Foreign currency translation	4,436
Balance-end of period	1,052,029
Compound Semiconductors
Goodwill [Roll Forward]
Balance-beginning of period	186,515
Finisar measurement period adjustments	0
Foreign currency translation	1,649
Balance-end of period	$ 241,483

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

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(10)(1))
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-Topic 350
-SubTopic 20
-Section 45
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-SubTopic 20
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-Paragraph 1
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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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-SubTopic 20
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-Paragraph 1
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- 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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- 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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-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 25
-Paragraph 16
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