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ACQUISITION ACTIVITY - Other Business Acquisition (Details) - USD ($) $ in Thousands	1 Months Ended
	Aug. 31, 2018	Jul. 31, 2018	Jan. 31, 2018	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017
ACQUISITION ACTIVITY
Goodwill				$ 307,108	$ 292,213	$ 242,129
Maximum contingent consideration				$ 28,200
An electronics component designer and manufacturer
ACQUISITION ACTIVITY
Total purchase price			$ 22,000
Goodwill			14,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net			3,300
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill			12,600
Maximum contingent consideration			$ 6,000
A privately held services company
ACQUISITION ACTIVITY
Total purchase price	$ 800
Maximum contingent consideration	$ 5,000
Contingent consideration earnout period	5 years
Optoelectronics solutions business
ACQUISITION ACTIVITY
Total purchase price		$ 17,500
Maximum contingent consideration		$ 1,000
Contingent consideration earnout period		18 months

X

- Definition

The earned out period of contingent consideration, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Includes, but not limited to, weeks in a year or quarter.

+ References

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

+ References

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-Publisher FASB
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- Definition

For contingent consideration arrangements recognized in connection with a business combination, this element represents an estimate of the high-end of the potential range (undiscounted) of the consideration which may be paid.

+ References

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- Definition

Amount of intangible assets, excluding goodwill, acquired at the acquisition date.

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Amount recognized as of the acquisition date for the identifiable assets acquired in excess of (less than) the aggregate liabilities assumed.

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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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