Business Combinations (Tables)

6 Months Ended

Jun. 30, 2020

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