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ACQUISITIONS (Detail Textual 2) - USD ($) $ in Thousands |  | 3 Months Ended | 4 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | ---
Mar. 01, 2019 | Jun. 30, 2019 | Mar. 31, 2019 | Dec. 31, 2018 | Sep. 30, 2018 | Jun. 30, 2018 | Mar. 31, 2018 | Dec. 31, 2017 | [1] | Sep. 30, 2017 | Jun. 30, 2019 | Jun. 30, 2019 | Jun. 30, 2018 | Jun. 30, 2017 | Sep. 30, 2019
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash consideration |  |  |  |  |  |  |  |  |  |  | $ 1,082,809 | $ 76,910 | $ 7,276 |
Goodwill |  | $ 3,336,079 |  |  |  | $ 2,620,835 |  |  |  | $ 3,336,079 | 3,336,079 | 2,620,835 | 2,577,435 | $ 3,336,079
Revenue |  | 1,373,878 | $ 1,264,958 | $ 1,181,641 | $ 1,165,864 | 1,170,086 | $ 1,124,100 | $ 1,087,860 | $ 1,085,814 |  | 4,986,341 | 4,467,860 | 4,354,617 |
Net income |  | 50,030 | $ 68,145 | $ 68,596 | $ 78,833 | $ 51,831 | $ 64,499 | $ 142,795 | $ 42,046 |  | 265,604 | 301,171 | 163,671 |
Amortization expense |  |  |  |  |  |  |  |  |  |  | $ 45,800 | $ 38,200 | $ 40,700 |
Customer contracts and related customer relationships |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amortization period of acquired intangible assets |  |  |  |  |  |  |  |  |  |  | 16 years 7 months 6 days |  |  |
Technology |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amortization period of acquired intangible assets |  |  |  |  |  |  |  |  |  |  | 10 years 3 months 18 days |  |  |
LGS |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase consideration | $ 750,500 |  |  |  |  |  |  |  |  |  |  |  |  |
Cash consideration | 759,900 |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase consideration adjustments, net | (9,400) |  |  |  |  |  |  |  |  |  |  |  |  |
Measurement period adjustment to consideration |  | (9,000) |  |  |  |  |  |  |  |  |  |  |  |
Measurement period adjustment to deferred income taxes |  | $ 5,200 |  |  |  |  |  |  |  |  |  |  |  |
Goodwill | 526,879 |  |  |  |  |  |  |  |  |  |  |  |  |
Identifiable intangible assets | 147,650 |  |  |  |  |  |  |  |  |  |  |  |  |
Amount of tax deductible goodwill and intangibles | 589,100 |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  |  | 132,300 |  |  |  |
Net income |  |  |  |  |  |  |  |  |  | 1,300 |  |  |  |
Amortization expense |  |  |  |  |  |  |  |  |  | 5,200 |  |  |  |
Integration and restructuring costs |  |  |  |  |  |  |  |  |  | $ 2,600 |  |  |  |
Acquisition-related expenses |  |  |  |  |  |  |  |  |  |  | $ 11,400 |  |  |
LGS | Customer contracts and related customer relationships |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Identifiable intangible assets | $ 86,900 |  |  |  |  |  |  |  |  |  |  |  |  |
Amortization period of acquired intangible assets | 20 years |  |  |  |  |  |  |  |  |  |  |  |  |
LGS | Technology |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Identifiable intangible assets | $ 60,800 |  |  |  |  |  |  |  |  |  |  |  |  |
LGS | Technology | Minimum |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amortization period of acquired intangible assets | 5 years |  |  |  |  |  |  |  |  |  |  |  |  |
LGS | Technology | Maximum |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amortization period of acquired intangible assets | 15 years |  |  |  |  |  |  |  |  |  |  |  |  |
[1] | Net income for the second quarter of FY2019 includes a net benefit related to the TCJA. See Note 19.

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