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ACQUISITIONS - Narrative (Details) - USD ($) $ in Millions |  |  | 3 Months Ended | 6 Months Ended |
--- | --- | --- | --- | --- | ---
Oct. 17, 2018 | Sep. 04, 2018 | Dec. 31, 2019 | Jun. 30, 2019 | Dec. 31, 2018
Business Acquisition [Line Items] |  |  |  |  |
Common stock authorized (shares) |  |  |  | 200,000,000 | 200,000,000
Merger-related transaction costs |  |  |  | $ 12.2 |
Forecast |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Common stock authorized (shares) |  |  | 400,000,000 |  |
TSYS | Forecast |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Entity stock issued per acquiree share (shares) |  |  | 0.8101 |  |
Total purchase consideration |  |  | $ 23,700.0 |  |
SICOM |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Total purchase consideration | $ 410.2 |  |  |  |
Measurement period adjustment of total purchase consideration |  |  |  | 1.0 |
Goodwill acquired | 266.2 |  |  |  |
Expected tax deductible amount of goodwill acquired | $ 40.0 |  |  |  |
AdvancedMD |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Total purchase consideration |  | $ 706.9 |  |  |
Goodwill acquired |  | $ 371.3 |  |  |
Measurement period adjustment of deferred income tax liabilities |  |  |  | $ (5.6) |

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- Definition Amount of direct costs of the business combination including legal, accounting, and other costs incurred to consummate the business acquisition. + References No definition available. + Details
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