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Business Combinations (Tables) | 9 Months Ended
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Sep. 30, 2017
Business Combinations [Abstract] |
Acquisition Method for Recording Business Combinations | During the nine-month period ended September 30, 2017, 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) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Construction Risk Solutions, LLC (CRS) January 1, 2017 |  |  | — |  |  | $ | — |  |  | $ | 27.9 |  |  | $ | — |  |  | $ | 3.1 |  |  | $ | 4.4 |  |  | $ | 35.4 |  |  | $ | 10.0 |
Hill, Chesson & Woody (HCW) January 1, 2017 |  |  | — |  |  |  | — |  |  |  | 34.8 |  |  |  | — |  |  |  | 0.7 |  |  |  | 15.9 |  |  |  | 51.4 |  |  |  | 24.4 |
Presidio Group, Inc. (PG) January 1, 2017 |  |  | — |  |  |  | — |  |  |  | 41.8 |  |  |  | — |  |  |  | 4.8 |  |  |  | 7.0 |  |  |  | 53.6 |  |  |  | 15.0 |
Commercial Insurance Brokers (CIB) April 1, 2017 |  |  | — |  |  |  | — |  |  |  | 17.7 |  |  |  | — |  |  |  | 2.0 |  |  |  | 0.8 |  |  |  | 20.5 |  |  |  | 3.6 |
Williams - Mannny Insurance Group (WMI) May 1, 2017 |  |  | 170 |  |  |  | 9.8 |  |  |  | 28.2 |  |  |  | — |  |  |  | 2.0 |  |  |  | 5.4 |  |  |  | 45.4 |  |  |  | 11.5 |
GPL Assurance Inc. (GPL) August 1, 2017 |  |  | — |  |  |  | — |  |  |  | 37.8 |  |  |  | — |  |  |  | 4.2 |  |  |  | 4.3 |  |  |  | 46.3 |  |  |  | 8.0 |
Lutgert Insurance (LI) September 1, 2017 |  |  | — |  |  |  | — |  |  |  | 25.2 |  |  |  | — |  |  |  | 1.3 |  |  |  | 4.4 |  |  |  | 30.9 |  |  |  | 10.2 |
Twenty-three other acquisitions completed in 2017 |  |  | 245 |  |  |  | 12.3 |  |  |  | 86.7 |  |  |  | — |  |  |  | 7.3 |  |  |  | 27.2 |  |  |  | 133.5 |  |  |  | 64.2 |
|  |  | 415 |  |  | $ | 22.1 |  |  | $ | 300.1 |  |  | $ | — |  |  | $ | 25.4 |  |  | $ | 69.4 |  |  | $ | 417.0 |  |  | $ | 146.9 |
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 nine-month period ended September 30, 2017 (in millions):
|  | CRS |  |  | HCW |  |  | PG |  |  | CIB |  |  | WMI |  |  | GPL |  |  | LI |  |  | Twenty-three Other Acquisitions |  |  | Total |
Cash |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | 0.1 |  |  | $ | 0.3 |  |  | $ | 0.4 |  |  | $ | 0.2 |  |  | $ | 5.4 |  |  | $ | 6.4 |
Other current assets |  |  | 3.6 |  |  |  | 2.1 |  |  |  | 2.4 |  |  |  | 3.6 |  |  |  | 1.8 |  |  |  | 13.6 |  |  |  | 1.2 |  |  |  | 7.7 |  |  |  | 36.0 |
Fixed assets |  |  | — |  |  |  | — |  |  |  | 0.5 |  |  |  | 0.1 |  |  |  | 0.2 |  |  |  | 1.0 |  |  |  | 0.6 |  |  |  | 1.2 |  |  |  | 3.6 |
Noncurrent assets |  |  | — |  |  |  | 0.2 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 0.2 |
Goodwill |  |  | 20.3 |  |  |  | 29.9 |  |  |  | 25.6 |  |  |  | 11.7 |  |  |  | 26.1 |  |  |  | 27.1 |  |  |  | 15.0 |  |  |  | 72.4 |  |  |  | 228.1 |
Expiration lists |  |  | 14.6 |  |  |  | 19.2 |  |  |  | 27.9 |  |  |  | 9.0 |  |  |  | 18.5 |  |  |  | 21.1 |  |  |  | 14.8 |  |  |  | 63.8 |  |  |  | 188.9 |
Non-compete agreements |  |  | 0.1 |  |  |  | 0.1 |  |  |  | 0.1 |  |  |  | — |  |  |  | 0.1 |  |  |  | 0.5 |  |  |  | 0.1 |  |  |  | 1.8 |  |  |  | 2.8 |
Total assets acquired |  |  | 38.6 |  |  |  | 51.5 |  |  |  | 56.5 |  |  |  | 24.5 |  |  |  | 47.0 |  |  |  | 63.7 |  |  |  | 31.9 |  |  |  | 152.3 |  |  |  | 466.0 |
Current liabilities |  |  | 3.2 |  |  |  | 0.1 |  |  |  | 2.9 |  |  |  | 4.0 |  |  |  | 1.6 |  |  |  | 11.6 |  |  |  | 1.0 |  |  |  | 9.9 |  |  |  | 34.3 |
Noncurrent liabilities |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 5.8 |  |  |  | — |  |  |  | 8.9 |  |  |  | 14.7 |
Total liabilities assumed |  |  | 3.2 |  |  |  | 0.1 |  |  |  | 2.9 |  |  |  | 4.0 |  |  |  | 1.6 |  |  |  | 17.4 |  |  |  | 1.0 |  |  |  | 18.8 |  |  |  | 49.0 |
Total net assets acquired |  | $ | 35.4 |  |  | $ | 51.4 |  |  | $ | 53.6 |  |  | $ | 20.5 |  |  | $ | 45.4 |  |  | $ | 46.3 |  |  | $ | 30.9 |  |  | $ | 133.5 |  |  | $ | 417.0 |
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, 2016 (in millions, except per share data):
|  | Three-month period ended September 30, |  |  | Nine-month period ended September 30, |
|  | 2017 |  |  | 2016 |  |  | 2017 |  |  | 2016 |
Total revenues |  | $ | 1,589.3 |  |  | $ | 1,517.5 |  |  | $ | 4,600.0 |  |  | $ | 4,317.2 |
Net earnings attributable to controlling interests |  |  | 130.1 |  |  |  | 123.4 |  |  |  | 359.8 |  |  |  | 320.4 |
Basic net earnings per share |  |  | 0.72 |  |  |  | 0.69 |  |  |  | 2.00 |  |  |  | 1.80 |
Diluted net earnings per share |  |  | 0.71 |  |  |  | 0.69 |  |  |  | 1.98 |  |  |  | 1.79 |

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