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Intangible Assets

9 Months Ended

Sep. 30, 2020

Goodwill And Intangible Assets Disclosure [Abstract]

Intangible Assets

6.  Intangible Assets

The carrying amount of goodwill at September 30, 2020 and December 31, 2019 allocated by domestic and foreign operations is as follows (in millions):

		Brokerage				Risk Management				Corporate				Total
At September 30, 2020
United States		$	3,267.0			$	33.2			$	—			$	3,300.2
United Kingdom			1,260.4				13.9				—				1,274.3
Canada			450.3				—				—				450.3
Australia			433.8				10.8				—				444.6
New Zealand			206.7				10.0				—				216.7
Other foreign			143.2				—				2.9				146.1
Total goodwill		$	5,761.4			$	67.9			$	2.9			$	5,832.2
At December 31, 2019
United States		$	3,163.8			$	33.1			$	—			$	3,196.9
United Kingdom			1,177.8				12.9				—				1,190.7
Canada			454.4				—				—				454.4
Australia			416.5				10.5				—				427.0
New Zealand			208.0				10.1				—				218.1
Other foreign			128.4				—				3.0				131.4
Total goodwill		$	5,548.9			$	66.6			$	3.0			$	5,618.5

The changes in the carrying amount of goodwill for the nine-month period ended September 30, 2020 are as follows (in millions):

		Brokerage				Risk Management				Corporate				Total
Balance as of December 31, 2019		$	5,548.9			$	66.6			$	3.0			$	5,618.5
Goodwill acquired during the period			200.7				—				—				200.7
Goodwill adjustments due to appraisals and other acquisition adjustments			29.2				1.3				—				30.5
Foreign currency translation adjustments during the period			(17.4	)			—				(0.1	)			(17.5	)
Balance as of September 30, 2020		$	5,761.4			$	67.9			$	2.9			$	5,832.2

Major classes of amortizable intangible assets at September 30, 2020 and December 31, 2019 consist of the following (in millions):

		September 30,				December 31,
		2020				2019
Expiration lists		$	4,434.7			$	4,246.0
Accumulated amortization - expiration lists			(2,310.2	)			(2,004.3	)
			2,124.5				2,241.7
Non-compete agreements			66.6				68.4
Accumulated amortization - non-compete agreements			(55.5	)			(52.5	)
			11.1				15.9
Trade names			98.9				91.8
Accumulated amortization - trade names			(39.5	)			(30.7	)
			59.4				61.1
Net amortizable assets		$	2,195.0			$	2,318.7

Estimated aggregate amortization expense for each of the next five years and thereafter is as follows:

2020 (remaining three months)		$	90.9
2021			346.3
2022			320.6
2023			295.7
2024			260.6
Thereafter			880.9
Total		$	2,195.0

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- References

No definition available.

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- Definition

The entire disclosure for goodwill and intangible assets.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-URI http://asc.fasb.org/topic&trid=2144416

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