GOODWILL AND INTANGIBLE ASSETS - Schedule of Purchased Intangible Assets (Details) - USD ($)
$ in Millions |
Mar. 31, 2020 |
Dec. 31, 2019 |
| Acquired Finite-Lived Intangible Assets [Line Items] |
|
|
| Gross |
$ 1,771.6
|
$ 1,820.5
|
| Accumulated Amortization |
(771.0)
|
(775.9)
|
| Net |
1,000.6
|
1,044.6
|
| Purchased data files |
|
|
| Acquired Finite-Lived Intangible Assets [Line Items] |
|
|
| Gross |
857.6
|
904.0
|
| Accumulated Amortization |
(353.8)
|
(351.8)
|
| Net |
503.8
|
552.2
|
| Acquired software and technology |
|
|
| Acquired Finite-Lived Intangible Assets [Line Items] |
|
|
| Gross |
92.8
|
110.1
|
| Accumulated Amortization |
(74.0)
|
(84.0)
|
| Net |
18.8
|
26.1
|
| Customer relationships |
|
|
| Acquired Finite-Lived Intangible Assets [Line Items] |
|
|
| Gross |
650.3
|
673.0
|
| Accumulated Amortization |
(306.4)
|
(305.1)
|
| Net |
343.9
|
367.9
|
| Proprietary database |
|
|
| Acquired Finite-Lived Intangible Assets [Line Items] |
|
|
| Gross |
149.2
|
108.3
|
| Accumulated Amortization |
(24.8)
|
(20.9)
|
| Net |
124.4
|
87.4
|
| Non-compete agreements |
|
|
| Acquired Finite-Lived Intangible Assets [Line Items] |
|
|
| Gross |
7.0
|
7.8
|
| Accumulated Amortization |
(3.1)
|
(3.5)
|
| Net |
3.9
|
4.3
|
| Trade names and other intangible assets |
|
|
| Acquired Finite-Lived Intangible Assets [Line Items] |
|
|
| Gross |
14.7
|
17.3
|
| Accumulated Amortization |
(8.9)
|
(10.6)
|
| Net |
$ 5.8
|
$ 6.7
|