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Note 10 - Acquisitions - Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | Sep. 09, 2020
Goodwill, Ending Balance |  | $ 4,108.1 |  | $ 3,864.3 | $ 3,361.5 |
Cash acquired |  | (11.1) |  | (10.4) | (3.1) |
Net cash purchase price |  | 275.8 |  | 699.2 | 138.2 |
Franco Signor [Member] |  |  |  |  |  |
Cash and cash equivalents | [1] | 10.9 |  |  |  |
Accounts receivable |  | 2.5 |  |  |  |
Other current assets |  | 0.4 |  |  |  |
Fixed assets |  | 0.4 |  |  |  |
Operating lease right-of-use assets, net |  | 1.5 |  |  |  |
Intangible assets |  | 59.1 |  |  |  |
Goodwill, Ending Balance |  | 100.3 |  |  |  |
Other assets |  | 8.0 |  |  |  |
Total assets acquired |  | 183.1 |  |  |  |
Current liabilities | [1] | (6.4) |  |  |  |
Deferred revenues |  | (0.3) |  |  |  |
Operating lease liabilities |  | (1.5) |  |  |  |
Deferred income tax, net |  | (1.8) |  |  |  |
Other liabilities |  | (8.0) |  |  |  |
Total liabilities assumed |  | (18.0) |  |  |  |
Net assets acquired |  | 165.1 |  |  |  |
Cash and cash equivalents | [1] | (10.9) |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Restricted Cash |  | 5.7 | [1] |  |  | $ 5.7
Cash acquired |  | (5.2) |  |  |  |
Net cash purchase price |  | 159.9 |  |  |  |
Current liabilities | [1] | 6.4 |  |  |  |
Deferred revenues |  | 0.3 |  |  |  |
Operating lease liabilities |  | 1.5 |  |  |  |
Deferred income tax, net |  | 1.8 |  |  |  |
Other liabilities |  | 8.0 |  |  |  |
Total liabilities assumed |  | 18.0 |  |  |  |
Lead Intelligence [Member] |  |  |  |  |  |
Cash and cash equivalents | [1] | 5.9 |  |  |  |
Accounts receivable |  | 2.9 |  |  |  |
Other current assets |  | 0.6 |  |  |  |
Fixed assets |  | 0.7 |  |  |  |
Operating lease right-of-use assets, net |  | 1.7 |  |  |  |
Intangible assets |  | 64.4 |  |  |  |
Goodwill, Ending Balance |  | 71.4 |  |  |  |
Other assets |  | 1.3 |  |  |  |
Total assets acquired |  | 148.9 |  |  |  |
Current liabilities | [1] | (1.3) |  |  |  |
Deferred revenues |  | (2.3) |  |  |  |
Operating lease liabilities |  | (1.7) |  |  |  |
Deferred income tax, net |  | (11.2) |  |  |  |
Other liabilities |  | (1.3) |  |  |  |
Total liabilities assumed |  | (17.8) |  |  |  |
Net assets acquired |  | 131.1 |  |  |  |
Cash and cash equivalents | [1] | (5.9) |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Restricted Cash | [1] | 0.0 |  |  |  |
Cash acquired |  | (5.9) |  |  |  |
Net cash purchase price |  | 125.2 |  |  |  |
Current liabilities | [1] | 1.3 |  |  |  |
Deferred revenues |  | 2.3 |  |  |  |
Operating lease liabilities |  | 1.7 |  |  |  |
Deferred income tax, net |  | 11.2 |  |  |  |
Other liabilities |  | 1.3 |  |  |  |
Total liabilities assumed |  | 17.8 |  |  |  |
2020 Acquisitions [Member] |  |  |  |  |  |
Cash and cash equivalents | [1] | 16.8 |  |  |  |
Accounts receivable |  | 5.4 |  |  |  |
Other current assets |  | 1.0 |  |  |  |
Fixed assets |  | 1.1 |  |  |  |
Operating lease right-of-use assets, net |  | 3.2 |  |  |  |
Intangible assets |  | 123.5 |  |  |  |
Goodwill, Ending Balance |  | 171.7 |  |  |  |
Other assets |  | 9.3 |  |  |  |
Total assets acquired |  | 332.0 |  |  |  |
Current liabilities | [1] | (7.7) |  |  |  |
Deferred revenues |  | (2.6) |  |  |  |
Operating lease liabilities |  | (3.2) |  |  |  |
Deferred income tax, net |  | (13.0) |  |  |  |
Other liabilities |  | (9.3) |  |  |  |
Total liabilities assumed |  | (35.8) |  |  |  |
Net assets acquired |  | 296.2 |  |  |  |
Cash and cash equivalents | [1] | (16.8) |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Restricted Cash | [1] | 5.7 |  |  |  |
Cash acquired |  | (11.1) |  |  |  |
Net cash purchase price |  | 285.1 |  |  |  |
Current liabilities | [1] | 7.7 |  |  |  |
Deferred revenues |  | 2.6 |  |  |  |
Operating lease liabilities |  | 3.2 |  |  |  |
Deferred income tax, net |  | 13.0 |  |  |  |
Other liabilities |  | 9.3 |  |  |  |
Total liabilities assumed |  | $ 35.8 |  |  |  |
Flexible Architecture and Simplified Technology LLC [Member] |  |  |  |  |  |
Cash and cash equivalents |  |  |  | 2.9 |  |
Accounts receivable |  |  |  | 4.7 |  |
Other current assets |  |  |  | 0.4 |  |
Fixed assets |  |  |  | 1.8 |  |
Operating lease right-of-use assets, net |  |  |  | 1.4 |  |
Intangible assets |  |  |  | 69.0 |  |
Goodwill, Ending Balance |  |  |  | 120.7 |  |
Other assets |  |  |  | 0.1 |  |
Total assets acquired |  |  |  | 201.0 |  |
Current liabilities |  |  |  | (2.4) |  |
Deferred revenues |  |  |  | (0.3) |  |
Operating lease liabilities |  |  |  | (1.4) |  |
Deferred income tax, net |  |  |  | 0.0 |  |
Other liabilities |  |  |  | 0.0 |  |
Total liabilities assumed |  |  |  | (4.1) |  |
Net assets acquired |  |  |  | 196.9 |  |
Cash and cash equivalents |  |  |  | (2.9) |  |
Cash acquired |  |  |  | (3.0) |  |
Net cash purchase price |  |  |  | 193.9 |  |
Current liabilities |  |  |  | 2.4 |  |
Deferred revenues |  |  |  | 0.3 |  |
Operating lease liabilities |  |  |  | 1.4 |  |
Deferred income tax, net |  |  |  | 0.0 |  |
Other liabilities |  |  |  | 0.0 |  |
Total liabilities assumed |  |  |  | 4.1 |  |
Genscape, Inc. [Member] |  |  |  |  |  |
Cash and cash equivalents |  |  |  | 0.2 |  |
Accounts receivable |  |  |  | 13.6 |  |
Other current assets |  |  |  | 1.4 |  |
Fixed assets |  |  |  | 15.9 |  |
Operating lease right-of-use assets, net |  |  |  | 7.4 |  |
Intangible assets |  |  |  | 153.2 |  |
Goodwill, Ending Balance |  |  |  | 241.4 |  |
Other assets |  |  |  | 0.0 |  |
Total assets acquired |  |  |  | 433.1 |  |
Current liabilities |  |  |  | (17.4) |  |
Deferred revenues |  |  |  | (27.3) |  |
Operating lease liabilities |  |  |  | (7.4) |  |
Deferred income tax, net |  |  |  | (29.8) |  |
Other liabilities |  |  |  | 0.0 |  |
Total liabilities assumed |  |  |  | (81.9) |  |
Net assets acquired |  |  |  | 351.2 |  |
Cash and cash equivalents |  |  |  | (0.2) |  |
Cash acquired |  |  |  | (0.2) |  |
Net cash purchase price |  |  |  | 351.0 |  |
Current liabilities |  |  |  | 17.4 |  |
Deferred revenues |  |  |  | 27.3 |  |
Operating lease liabilities |  |  |  | 7.4 |  |
Deferred income tax, net |  |  |  | 29.8 |  |
Other liabilities |  |  |  | 0.0 |  |
Total liabilities assumed |  |  |  | 81.9 |  |
BuildFax Inc. [Member] |  |  |  |  |  |
Cash and cash equivalents |  |  |  | 0.4 |  |
Accounts receivable |  |  |  | 1.8 |  |
Other current assets |  |  |  | 0.1 |  |
Fixed assets |  |  |  | 0.9 |  |
Operating lease right-of-use assets, net |  |  |  | 0.4 |  |
Intangible assets |  |  |  | 21.9 |  |
Goodwill, Ending Balance |  |  |  | 20.2 |  |
Other assets |  |  |  | 0.0 |  |
Total assets acquired |  |  |  | 45.7 |  |
Current liabilities |  |  |  | (0.9) |  |
Deferred revenues |  |  |  | (2.4) |  |
Operating lease liabilities |  |  |  | (0.4) |  |
Deferred income tax, net |  |  |  | (0.4) |  |
Other liabilities |  |  |  | (1.0) |  |
Total liabilities assumed |  |  |  | (5.1) |  |
Net assets acquired |  |  |  | 40.6 |  |
Cash and cash equivalents |  |  |  | (0.4) |  |
Cash acquired |  |  |  | (0.4) |  |
Net cash purchase price |  |  |  | 40.2 |  |
Current liabilities |  |  |  | 0.9 |  |
Deferred revenues |  |  |  | 2.4 |  |
Operating lease liabilities |  |  |  | 0.4 |  |
Deferred income tax, net |  |  |  | 0.4 |  |
Other liabilities |  |  |  | 1.0 |  |
Total liabilities assumed |  |  |  | 5.1 |  |
CaaS [Member] |  |  |  |  |  |
Cash and cash equivalents |  |  |  | 3.7 |  |
Accounts receivable |  |  |  | 0.0 |  |
Other current assets |  |  |  | 0.7 |  |
Fixed assets |  |  |  | 0.2 |  |
Operating lease right-of-use assets, net |  |  |  | 0.0 |  |
Intangible assets |  |  |  | 34.4 |  |
Goodwill, Ending Balance |  |  |  | 41.2 |  |
Other assets |  |  |  | 0.1 |  |
Total assets acquired |  |  |  | 80.3 |  |
Current liabilities |  |  |  | (1.3) |  |
Deferred revenues |  |  |  | (10.1) |  |
Operating lease liabilities |  |  |  | 0.0 |  |
Deferred income tax, net |  |  |  | 0.0 |  |
Other liabilities |  |  |  | 0.0 |  |
Total liabilities assumed |  |  |  | (11.4) |  |
Net assets acquired |  |  |  | 68.9 |  |
Cash and cash equivalents |  |  |  | (3.7) |  |
Cash acquired |  |  |  | (3.7) |  |
Net cash purchase price |  |  |  | 65.2 |  |
Current liabilities |  |  |  | 1.3 |  |
Deferred revenues |  |  |  | 10.1 |  |
Operating lease liabilities |  |  |  | 0.0 |  |
Deferred income tax, net |  |  |  | 0.0 |  |
Other liabilities |  |  |  | 0.0 |  |
Total liabilities assumed |  |  |  | 11.4 |  |
Acquisition, Others [Member] |  |  |  |  |  |
Cash and cash equivalents |  |  |  | 3.1 | 2.2 |
Accounts receivable |  |  |  | 3.9 | 1.0 |
Other current assets |  |  |  | 0.6 | 0.2 |
Fixed assets |  |  |  | 6.3 | 0.2 |
Operating lease right-of-use assets, net |  |  |  | 0.5 |  |
Intangible assets |  |  |  | 14.1 | 8.4 |
Goodwill, Ending Balance |  |  |  | 28.2 | 15.8 |
Other assets |  |  |  | 4.4 | 0.0 |
Total assets acquired |  |  |  | 61.1 | 27.8 |
Current liabilities |  |  |  | (1.3) | (1.0) |
Deferred revenues |  |  |  | 0.0 | (1.1) |
Operating lease liabilities |  |  |  | (0.5) |  |
Deferred income tax, net |  |  |  | (2.6) | (1.5) |
Other liabilities |  |  |  | (5.3) | 0.0 |
Total liabilities assumed |  |  |  | (9.7) | (3.6) |
Net assets acquired |  |  |  | 51.4 | 24.2 |
Cash and cash equivalents |  |  |  | (3.1) | (2.2) |
Cash acquired |  |  |  | (3.1) | (2.2) |
Net cash purchase price |  |  |  | 48.3 | 22.0 |
Current liabilities |  |  |  | 1.3 | 1.0 |
Deferred revenues |  |  |  | 0.0 | 1.1 |
Operating lease liabilities |  |  |  | 0.5 |  |
Deferred income tax, net |  |  |  | 2.6 | 1.5 |
Other liabilities |  |  |  | 5.3 | 0.0 |
Total liabilities assumed |  |  |  | 9.7 | 3.6 |
2019 Acquisitions [Member] |  |  |  |  |  |
Cash and cash equivalents |  |  |  | 10.3 |  |
Accounts receivable |  |  |  | 24.0 |  |
Other current assets |  |  |  | 3.2 |  |
Fixed assets |  |  |  | 25.1 |  |
Operating lease right-of-use assets, net |  |  |  | 9.7 |  |
Intangible assets |  |  |  | 292.6 |  |
Goodwill, Ending Balance |  |  |  | 451.7 |  |
Other assets |  |  |  | 4.6 |  |
Total assets acquired |  |  |  | 821.2 |  |
Current liabilities |  |  |  | (23.3) |  |
Deferred revenues |  |  |  | (40.1) |  |
Operating lease liabilities |  |  |  | (9.7) |  |
Deferred income tax, net |  |  |  | (32.8) |  |
Other liabilities |  |  |  | (6.3) |  |
Total liabilities assumed |  |  |  | (112.2) |  |
Net assets acquired |  |  |  | 709.0 |  |
Cash and cash equivalents |  |  |  | (10.3) |  |
Cash acquired |  |  |  | (10.4) |  |
Net cash purchase price |  |  |  | 698.6 |  |
Current liabilities |  |  |  | 23.3 |  |
Deferred revenues |  |  |  | 40.1 |  |
Operating lease liabilities |  |  |  | 9.7 |  |
Deferred income tax, net |  |  |  | 32.8 |  |
Other liabilities |  |  |  | 6.3 |  |
Total liabilities assumed |  |  |  | $ 112.2 |  |
Rulebook [Member] |  |  |  |  |  |
Cash and cash equivalents |  |  |  |  | 0.0 |
Accounts receivable |  |  |  |  | 2.0 |
Other current assets |  |  |  |  | 0.1 |
Fixed assets |  |  |  |  | 1.5 |
Intangible assets |  |  |  |  | 25.1 |
Goodwill, Ending Balance |  |  |  |  | 58.9 |
Other assets |  |  |  |  | 8.6 |
Total assets acquired |  |  |  |  | 96.2 |
Current liabilities |  |  |  |  | (0.6) |
Deferred revenues |  |  |  |  | (0.4) |
Deferred income tax, net |  |  |  |  | (0.1) |
Other liabilities |  |  |  |  | (8.6) |
Total liabilities assumed |  |  |  |  | (9.7) |
Net assets acquired |  |  |  |  | 86.5 |
Cash and cash equivalents |  |  |  |  | 0.0 |
Cash acquired |  |  |  |  | 0.0 |
Net cash purchase price |  |  |  |  | 86.5 |
Current liabilities |  |  |  |  | 0.6 |
Deferred revenues |  |  |  |  | 0.4 |
Deferred income tax, net |  |  |  |  | 0.1 |
Other liabilities |  |  |  |  | 8.6 |
Total liabilities assumed |  |  |  |  | 9.7 |
Validus-IVC Limited [Member] |  |  |  |  |  |
Cash and cash equivalents |  |  |  |  | 0.9 |
Accounts receivable |  |  |  |  | 1.5 |
Other current assets |  |  |  |  | 6.3 |
Fixed assets |  |  |  |  | 0.4 |
Intangible assets |  |  |  |  | 20.9 |
Goodwill, Ending Balance |  |  |  |  | 24.8 |
Other assets |  |  |  |  | 0.0 |
Total assets acquired |  |  |  |  | 54.8 |
Current liabilities |  |  |  |  | (3.9) |
Deferred revenues |  |  |  |  | (0.1) |
Deferred income tax, net |  |  |  |  | (3.6) |
Other liabilities |  |  |  |  | (0.2) |
Total liabilities assumed |  |  |  |  | (7.8) |
Net assets acquired |  |  |  |  | 47.0 |
Cash and cash equivalents |  |  |  |  | (0.9) |
Cash acquired |  |  |  |  | (0.9) |
Net cash purchase price |  |  |  |  | 46.1 |
Current liabilities |  |  |  |  | 3.9 |
Deferred revenues |  |  |  |  | 0.1 |
Deferred income tax, net |  |  |  |  | 3.6 |
Other liabilities |  |  |  |  | 0.2 |
Total liabilities assumed |  |  |  |  | 7.8 |
2018 Acquisition [Member] |  |  |  |  |  |
Cash and cash equivalents |  |  |  |  | 3.1 |
Accounts receivable |  |  |  |  | 4.5 |
Other current assets |  |  |  |  | 6.6 |
Fixed assets |  |  |  |  | 2.1 |
Intangible assets |  |  |  |  | 54.4 |
Goodwill, Ending Balance |  |  |  |  | 99.5 |
Other assets |  |  |  |  | 8.6 |
Total assets acquired |  |  |  |  | 178.8 |
Current liabilities |  |  |  |  | (5.5) |
Deferred revenues |  |  |  |  | (1.6) |
Deferred income tax, net |  |  |  |  | (5.2) |
Other liabilities |  |  |  |  | (8.8) |
Total liabilities assumed |  |  |  |  | (21.1) |
Net assets acquired |  |  |  |  | 157.7 |
Cash and cash equivalents |  |  |  |  | (3.1) |
Cash acquired |  |  |  |  | (3.1) |
Net cash purchase price |  |  |  |  | 154.6 |
Current liabilities |  |  |  |  | 5.5 |
Deferred revenues |  |  |  |  | 1.6 |
Deferred income tax, net |  |  |  |  | 5.2 |
Other liabilities |  |  |  |  | 8.8 |
Total liabilities assumed |  |  |  |  | $ 21.1 |
[1] | Within cash and cash equivalents, there is $5.7 million of restricted cash related to Franco Signor's professional administrative services for Medicare Set Asides, with an offsetting liability of $5.7 million included within current liabilities.

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- Definition Amount of currency on hand as well as demand deposits with banks or financial institutions, acquired at the acquisition date. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=121647850&loc=d3e4845-128472 + Details
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