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QUARTERLY FINANCIAL DATA (UNAUDITED) - Additional Information (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2019 | Jun. 30, 2018 | Dec. 31, 2017 | Sep. 30, 2017 | Jun. 30, 2019 | Jun. 30, 2018 | Jun. 30, 2017
Quarterly Financial Information [Line Items] |  |  |  |  |  |  |
TBG restructuring | $ 20,700 |  |  |  | $ 21,816 | $ 0 | $ 0
Asset impairment charges |  |  |  | $ 33,800 |  |  |
Non-cash tax benefit |  |  | $ 68,900 |  |  |  |
Restatement Adjustment | Understatement of Non-Cash Fixed Asset Impairment Charges Related to Discontinued Operations |  |  |  |  |  |  |
Quarterly Financial Information [Line Items] |  |  |  |  |  |  |
Asset impairments |  | $ 2,000 |  |  |  |  |
Contract Termination |  |  |  |  |  |  |
Quarterly Financial Information [Line Items] |  |  |  |  |  |  |
TBG restructuring |  |  | 37,600 |  |  |  |
Other Restructuring |  |  |  |  |  |  |
Quarterly Financial Information [Line Items] |  |  |  |  |  |  |
TBG restructuring |  |  | $ 3,500 |  |  |  |

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