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ACQUISITIONS (Detail Textual 1) - USD ($) $ in Thousands |  |  | 12 Months Ended
--- | --- | --- | ---
Oct. 01, 2016 | Feb. 01, 2016 | Jun. 30, 2018 | Jun. 30, 2017 | Jun. 30, 2016 | Jun. 30, 2015
Business Acquisition [Line Items] |  |  |  |  |  |
Proceeds from revolver borrowings |  |  | $ 477,000 | $ 485,500 | $ 1,058,500 |
Goodwill |  |  | $ 2,620,835 | $ 2,577,435 | 2,585,343 |
Customer contracts and related customer relationships |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Amortization period of acquired intangible assets |  |  | 14 years 8 months 12 days |  |  |
Business in United Kingdom |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Purchase consideration | $ 2,800 |  |  |  |  |
NSS Acquisition |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Purchase consideration |  | $ 541,900 |  |  |  |
Percentage of outstanding shares acquired |  | 100.00% |  |  |  |
Cash consideration |  | $ 550,000 |  |  |  |
Consideration, initial net working capital payment |  | 11,200 |  |  |  |
Consideration, net working capital refund received |  | 13,600 |  |  |  |
Consideration, refund for tax-related adjustments |  | 5,700 |  |  |  |
Goodwill |  | 360,230 |  |  |  |
Amount of tax deductible goodwill and intangibles |  | $ 47,700 |  |  |  |
Goodwill impairment expense |  |  |  |  | $ 476,200 | $ 158,700
NSS Acquisition | Customer contracts and related customer relationships |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Amortization period of acquired intangible assets |  | 15 years |  |  |  |
NSS Acquisition | Revolving Credit Facility |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Proceeds from revolver borrowings |  | $ 250,000 |  |  |  |
NSS Acquisition | Term loans |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Proceeds from term loan borrowings |  | $ 300,000 |  |  |  |

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