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Business Combinations (Tables) | 6 Months Ended
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Jun. 30, 2018
Business Combinations [Abstract] |
Acquisition Method for Recording Business Combinations | During the six-month period ended June 30, 2018, 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):
Name and Effective Date of Acquisition |  | Common Shares Issued |  |  | Common Share Value |  |  | Cash Paid |  |  | Accrued Liability |  |  | Escrow Deposited |  |  | Recorded Earnout Payable |  |  | Total Recorded Purchase Price |  |  | Maximum Potential Earnout Payable |
|  | (000s) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Market Financial Group, Ltd and Austin Consulting Group Inc. (MFG) January 1, 2018 |  |  | 53 |  |  | $ | 3.7 |  |  | $ | 33.9 |  |  | $ | — |  |  | $ | 4.2 |  |  | $ | 4.0 |  |  | $ | 45.8 |  |  | $ | 7.0 |
McGregor & Associates (M&A) March 1, 2018 |  |  | — |  |  |  | — |  |  |  | 13.5 |  |  |  | — |  |  |  | 2.5 |  |  |  | 5.1 |  |  |  | 21.1 |  |  |  | 12.0 |
Pronto Insurance (PI) June 5, 2018 |  |  | — |  |  |  | — |  |  |  | 294.8 |  |  |  | — |  |  |  | 18.7 |  |  |  | — |  |  |  | 313.5 |  |  |  | — |
Sixteen other acquisitions completed in 2018 |  |  | 220 |  |  |  | 12.2 |  |  |  | 82.0 |  |  |  | 0.4 |  |  |  | 9.9 |  |  |  | 21.9 |  |  |  | 126.4 |  |  |  | 52.1 |
|  |  | 273 |  |  | $ | 15.9 |  |  | $ | 424.2 |  |  | $ | 0.4 |  |  | $ | 35.3 |  |  | $ | 31.0 |  |  | $ | 506.8 |  |  | $ | 71.1 |
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, 2018 (in millions):
|  | MFG |  |  | M&A |  |  | PI |  |  | Sixteen Other Acquisitions |  |  | Total |
Cash |  | $ | 0.1 |  |  | $ | — |  |  | $ | 7.2 |  |  | $ | 5.0 |  |  | $ | 12.3 |
Other current assets |  |  | 3.0 |  |  |  | 0.5 |  |  |  | 35.3 |  |  |  | 20.6 |  |  |  | 59.4 |
Fixed assets |  |  | 0.4 |  |  |  | 1.4 |  |  |  | 2.6 |  |  |  | 0.4 |  |  |  | 4.8 |
Noncurrent assets |  |  | — |  |  |  | — |  |  |  | 8.3 |  |  |  | — |  |  |  | 8.3 |
Goodwill |  |  | 24.7 |  |  |  | 5.2 |  |  |  | 194.1 |  |  |  | 70.5 |  |  |  | 294.5 |
Expiration lists |  |  | 20.2 |  |  |  | 15.1 |  |  |  | 105.7 |  |  |  | 63.0 |  |  |  | 204.0 |
Non-compete agreements |  |  | 0.1 |  |  |  | 0.1 |  |  |  | 0.3 |  |  |  | 1.2 |  |  |  | 1.7 |
Trade names |  |  | — |  |  |  | — |  |  |  | 35.4 |  |  |  | — |  |  |  | 35.4 |
Total assets acquired |  |  | 48.5 |  |  |  | 22.3 |  |  |  | 388.9 |  |  |  | 160.7 |  |  |  | 620.4 |
Current liabilities |  |  | 2.3 |  |  |  | 0.4 |  |  |  | 31.5 |  |  |  | 19.3 |  |  |  | 53.5 |
Noncurrent liabilities |  |  | 0.4 |  |  |  | 0.8 |  |  |  | 43.9 |  |  |  | 15.0 |  |  |  | 60.1 |
Total liabilities assumed |  |  | 2.7 |  |  |  | 1.2 |  |  |  | 75.4 |  |  |  | 34.3 |  |  |  | 113.6 |
Total net assets acquired |  | $ | 45.8 |  |  | $ | 21.1 |  |  | $ | 313.5 |  |  | $ | 126.4 |  |  | $ | 506.8 |
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, 2017 (in millions, except per share data):
|  | Three-month period ended June 30, |  |  | Six-month period ended June 30, |
|  | 2018 |  |  | 2017 |  |  | 2018 |  |  | 2017 |
Total revenues |  | $ | 1,683.4 |  |  | $ | 1,525.8 |  |  | $ | 3,560.7 |  |  | $ | 3,211.6 |
Net earnings attributable to controlling interests |  |  | 116.8 |  |  |  | 71.9 |  |  |  | 395.8 |  |  |  | 306.0 |
Basic net earnings per share |  |  | 0.64 |  |  |  | 0.40 |  |  |  | 2.17 |  |  |  | 1.70 |
Diluted net earnings per share |  |  | 0.63 |  |  |  | 0.40 |  |  |  | 2.13 |  |  |  | 1.69 |

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