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STOCK-BASED COMPENSATION - Stock based compensation expense (Details) - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2018
Stock based compensation expense
Stock-based compensation expense before taxes	$ 23,817	$ 25,251	$ 23,846
RSU
Stock-based compensation, other disclosures
Unrecognized compensation cost	$ 13,700
Weighted-average period	2 years
Stock options
Stock-based compensation, other disclosures
Unrecognized compensation cost	$ 400
Weighted-average period	1 year 10 months 24 days
Cost of goods sold
Stock based compensation expense
Stock-based compensation expense before taxes	$ 708	732	972
Selling, general and administrative
Stock based compensation expense
Stock-based compensation expense before taxes	22,546	23,876	22,293
Research and development
Stock based compensation expense
Stock-based compensation expense before taxes	$ 563	$ 643	$ 581
2006 Plan
Stock based compensation expense
Granted (in shares)	0

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- Definition

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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