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STOCK-BASED COMPENSATION - Stock based compensation expense (Details) - USD ($) $ in Thousands |  | 12 Months Ended
--- | --- | ---
Dec. 11, 2017 | Jun. 30, 2018 | Jun. 30, 2017 | Jun. 30, 2016
Stock based compensation expense |  |  |  |
Stock-based compensation expense before taxes |  | $ 23,846 | $ 26,132 | $ 20,759
Less: related income tax benefit |  | (7,391) | (9,815) | (7,762)
Stock-based compensation expense, net of estimated taxes |  | 16,455 | 16,317 | 12,997
RSU |  |  |  |
Stock-based compensation, other disclosures |  |  |  |
Unrecognized compensation cost |  | $ 14,200 |  |
Weighted-average period |  | 2 years 1 month 6 days |  |
Stock options |  |  |  |
Stock-based compensation, other disclosures |  |  |  |
Unrecognized compensation cost |  | $ 600 |  |
Weighted-average period |  | 1 year 10 months 24 days |  |
Cost of goods sold |  |  |  |
Stock based compensation expense |  |  |  |
Stock-based compensation expense before taxes |  | $ 972 | 1,443 | 1,199
Selling, general and administrative |  |  |  |
Stock based compensation expense |  |  |  |
Stock-based compensation expense before taxes |  | 22,293 | 21,354 | 19,307
Research and development |  |  |  |
Stock based compensation expense |  |  |  |
Stock-based compensation expense before taxes |  | $ 581 | 433 | $ 253
Restructuring |  |  |  |
Stock based compensation expense |  |  |  |
Stock-based compensation expense before taxes |  |  | $ 2,902 |
2005 AS&E Plan and the 2014 AS&E Plan | RSU |  |  |  |
Stock based compensation expense |  |  |  |
Granted (in shares) |  | 0 |  |
2012 Plan |  |  |  |
Stock based compensation expense |  |  |  |
Additional maximum number of shares of common stock which may be issued | 1,600,000 |  |  |
2006 Plan |  |  |  |
Stock based compensation expense |  |  |  |
Granted (in shares) |  | 0 |  |

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- Definition Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 14.F) -URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5047-113901 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1)(i) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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- Definition The amount of expense, net of income tax, recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees. + References No definition available. + Details
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- Definition Unrecognized cost of unvested share-based compensation awards. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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- Definition Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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- Definition The total recognized tax benefit related to compensation cost for equity-based payment arrangements recognized in income during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1)(i) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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- Definition The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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