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Business Combinations (Tables) | 6 Months Ended
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Jun. 30, 2020
Business Combinations [Abstract] |
Acquisition Method for Recording Business Combinations | During the six-month period ended June 30, 2020, we acquired substantially all of the net assets of the following firms in exchange for our common stock and/or cash. These acquisitions have been accounted for using the acquisition method for recording business combinations (in millions, except share data):
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Total |  |  | Maximum |
|  | Common |  |  | Common |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Recorded |  |  | Recorded |  |  | Potential |
Name and Effective |  | Shares |  |  | Share |  |  |  |  |  |  | Accrued |  |  | Escrow |  |  | Earnout |  |  | Purchase |  |  | Earnout |
Date of Acquisition |  | Issued |  |  | Value |  |  | Cash Paid |  |  | Liability |  |  | Deposited |  |  | Payable |  |  | Price |  |  | Payable |
|  | (000s) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Capsicum Reinsurance Brokers LLP |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
January 1, 2020 (CRB) |  |  | 584 |  |  | $ | 62.9 |  |  | $ | 64.5 |  |  | $ | — |  |  | $ | — |  |  | $ | 119.0 |  |  | $ | 246.4 |  |  | $ | 209.1 |
Hanover Excess & Surplus, Inc and Hanover 'Finance, Inc (HES) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
January 1, 2020 |  |  | — |  |  |  | — |  |  |  | 30.1 |  |  |  | — |  |  |  | 3.0 |  |  |  | 0.2 |  |  |  | 33.3 |  |  |  | 9.3 |
CRES Insurance Services, LLC |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
June 1, 2020 (CRES) |  |  | 288 |  |  |  | 28.5 |  |  |  | 1.5 |  |  |  | — |  |  |  | 1.0 |  |  |  | 5.3 |  |  |  | 36.3 |  |  |  | 7.3 |
Nine other acquisitions completed in 2020 |  |  | 89 |  |  |  | 6.7 |  |  |  | 51.9 |  |  |  | 1.8 |  |  |  | 5.0 |  |  |  | 18.4 |  |  |  | 83.8 |  |  |  | 35.4 |
|  |  | 961 |  |  | $ | 98.1 |  |  | $ | 148.0 |  |  | $ | 1.8 |  |  | $ | 9.0 |  |  | $ | 142.9 |  |  | $ | 399.8 |  |  | $ | 261.1 |
Summary of Estimated Fair Values of Net Assets Acquired | The following is a summary of the estimated fair values of the net assets acquired at the date of each acquisition made in the six‑month period ended June 30, 2020 (in millions):
|  |  |  |  |  |  |  |  |  |  |  |  |  | Nine Other |  |  |  |  |
|  | CRB |  |  | HES |  |  | CRES |  |  | Acquisitions |  |  | Total |
Cash |  | $ | — |  |  | $ | 0.3 |  |  | $ | 1.5 |  |  | $ | 2.4 |  |  | $ | 4.2 |
Other current assets |  |  | — |  |  |  | 4.0 |  |  |  | 15.2 |  |  |  | 21.7 |  |  |  | 40.9 |
Fixed assets |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 0.4 |  |  |  | 0.4 |
Noncurrent assets |  |  | 7.6 |  |  |  | 0.8 |  |  |  | — |  |  |  | 2.0 |  |  |  | 10.4 |
Goodwill |  |  | 119.0 |  |  |  | 13.1 |  |  |  | 24.6 |  |  |  | 33.8 |  |  |  | 190.5 |
Expiration lists |  |  | 103.3 |  |  |  | 19.5 |  |  |  | 9.3 |  |  |  | 46.3 |  |  |  | 178.4 |
Non-compete agreements |  |  | 3.3 |  |  |  | 0.5 |  |  |  | 0.4 |  |  |  | 0.4 |  |  |  | 4.6 |
Trade names |  |  | 13.2 |  |  |  | — |  |  |  | 1.0 |  |  |  | — |  |  |  | 14.2 |
Total assets acquired |  |  | 246.4 |  |  |  | 38.2 |  |  |  | 52.0 |  |  |  | 107.0 |  |  |  | 443.6 |
Current liabilities |  |  | — |  |  |  | 4.4 |  |  |  | 15.7 |  |  |  | 19.6 |  |  |  | 39.7 |
Noncurrent liabilities |  |  | — |  |  |  | 0.5 |  |  |  | — |  |  |  | 3.6 |  |  |  | 4.1 |
Total liabilities assumed |  |  | — |  |  |  | 4.9 |  |  |  | 15.7 |  |  |  | 23.2 |  |  |  | 43.8 |
Total net assets acquired |  | $ | 246.4 |  |  | $ | 33.3 |  |  | $ | 36.3 |  |  | $ | 83.8 |  |  | $ | 399.8 |
Summary of Unaudited Pro Forma Historical Results | The following is a summary of the unaudited pro forma historical results, as if these entities had been acquired at January 1, 2019 (in millions, except per share data):
| Three-month period ended |  |  | Six-month period ended |
| June 30, |  |  | June 30, |
| 2020 |  |  | 2019 |  |  | 2020 |  |  | 2019 |
Total revenues | $ | 1,586.3 |  |  | $ | 1,669.4 |  |  | $ | 3,458.4 |  |  | $ | 3,670.6 |
Net earnings attributable to controlling interests |  | 153.9 |  |  |  | 111.3 |  |  |  | 500.4 |  |  |  | 451.0 |
Basic net earnings per share |  | 0.81 |  |  |  | 0.60 |  |  |  | 2.63 |  |  |  | 2.42 |
Diluted net earnings per share |  | 0.79 |  |  |  | 0.58 |  |  |  | 2.58 |  |  |  | 2.37 |

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