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Business Combinations (Tables) | 12 Months Ended
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Dec. 31, 2018
Business Combinations [Abstract] |
Acquisition Method for Recording Business Combinations | During 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 |  |  | $ | 2.7 |  |  | $ | 44.5 |  |  | $ | 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 |  |  |  | — |
Reassurance Holdings, Inc. (RHI) July 1, 2018 |  |  | 343 |  |  |  | 24.4 |  |  |  | 84.4 |  |  |  | — |  |  |  | 13.3 |  |  |  | 3.3 |  |  |  | 125.4 |  |  |  | 21.5 |
Buckman-Mitchell, Inc. (BMI) November 1, 2018 |  |  | — |  |  |  | — |  |  |  | 43.9 |  |  |  | — |  |  |  | 1.9 |  |  |  | 3.6 |  |  |  | 49.4 |  |  |  | 8.5 |
Accompass Inc. (AI) December 1, 2018 |  |  | — |  |  |  | — |  |  |  | 29.8 |  |  |  | — |  |  |  | 2.6 |  |  |  | 4.4 |  |  |  | 36.8 |  |  |  | 11.3 |
42 other acquisitions completed in 2018 |  |  | 430 |  |  |  | 26.1 |  |  |  | 291.9 |  |  |  | 3.1 |  |  |  | 28.2 |  |  |  | 74.9 |  |  |  | 424.2 |  |  |  | 141.2 |
|  |  | 826 |  |  | $ | 54.2 |  |  | $ | 792.2 |  |  | $ | 3.1 |  |  | $ | 71.4 |  |  | $ | 94.0 |  |  | $ | 1,014.9 |  |  | $ | 201.5 |
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 2018 (in millions):
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 42 Other |  |  |  |
|  | MFG |  |  | M&A |  |  | PI |  |  | RHI |  |  | BMI |  |  | AI |  |  | Acquisitions |  |  | Total |
Cash |  | $ | 0.1 |  |  | $ | — |  |  | $ | 7.2 |  |  | $ | — |  |  | $ | 0.1 |  |  | $ | 0.4 |  |  | $ | 11.8 |  |  | $ | 19.6 |
Other current assets |  |  | 3.0 |  |  |  | 0.5 |  |  |  | 66.8 |  |  |  | 18.4 |  |  |  | 12.4 |  |  |  | 1.9 |  |  |  | 103.1 |  |  |  | 206.1 |
Fixed assets |  |  | 0.4 |  |  |  | 1.4 |  |  |  | 2.6 |  |  |  | 2.2 |  |  |  | 0.1 |  |  |  | 0.1 |  |  |  | 1.5 |  |  |  | 8.3 |
Noncurrent assets |  |  | — |  |  |  | — |  |  |  | 8.3 |  |  |  | 0.4 |  |  |  | — |  |  |  | — |  |  |  | 17.5 |  |  |  | 26.2 |
Goodwill |  |  | 24.6 |  |  |  | 5.2 |  |  |  | 209.4 |  |  |  | 77.9 |  |  |  | 18.8 |  |  |  | 21.4 |  |  |  | 227.3 |  |  |  | 584.6 |
Expiration lists |  |  | 19.6 |  |  |  | 15.1 |  |  |  | 56.7 |  |  |  | 41.9 |  |  |  | 26.0 |  |  |  | 17.2 |  |  |  | 205.3 |  |  |  | 381.8 |
Non-compete agreements |  |  | — |  |  |  | 0.1 |  |  |  | 0.2 |  |  |  | 0.5 |  |  |  | 0.2 |  |  |  | 1.7 |  |  |  | 2.6 |  |  |  | 5.3 |
Trade names |  |  | 0.1 |  |  |  | — |  |  |  | 58.1 |  |  |  | 3.2 |  |  |  | — |  |  |  | — |  |  |  | 0.1 |  |  |  | 61.5 |
Total assets acquired |  |  | 47.8 |  |  |  | 22.3 |  |  |  | 409.3 |  |  |  | 144.5 |  |  |  | 57.6 |  |  |  | 42.7 |  |  |  | 569.2 |  |  |  | 1,293.4 |
Current liabilities |  |  | 2.3 |  |  |  | 0.4 |  |  |  | 64.2 |  |  |  | 7.2 |  |  |  | 8.2 |  |  |  | 0.8 |  |  |  | 94.6 |  |  |  | 177.7 |
Noncurrent liabilities |  |  | 1.0 |  |  |  | 0.8 |  |  |  | 31.6 |  |  |  | 11.9 |  |  |  | — |  |  |  | 5.1 |  |  |  | 50.4 |  |  |  | 100.8 |
Total liabilities assumed |  |  | 3.3 |  |  |  | 1.2 |  |  |  | 95.8 |  |  |  | 19.1 |  |  |  | 8.2 |  |  |  | 5.9 |  |  |  | 145.0 |  |  |  | 278.5 |
Total net assets acquired |  | $ | 44.5 |  |  | $ | 21.1 |  |  | $ | 313.5 |  |  | $ | 125.4 |  |  | $ | 49.4 |  |  | $ | 36.8 |  |  | $ | 424.2 |  |  | $ | 1,014.9 |
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):
|  | Year Ended December 31, |
|  | 2018 |  |  | 2017 |
Total revenues |  | $ | 7,125.5 |  |  | $ | 6,572.4 |
Net earnings attributable to controlling interests |  |  | 646.1 |  |  |  | 496.4 |
Basic earnings per share |  |  | 3.53 |  |  |  | 2.74 |
Diluted earnings per share |  |  | 3.46 |  |  |  | 2.71 |

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