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Intangible Assets

6 Months Ended

Jun. 30, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

Intangible Assets

6. Intangible Assets

The carrying amount of goodwill at June 30, 2018 and December 31, 2017 allocated by domestic and foreign operations is as follows (in millions):

		Brokerage				Risk Management				Corporate				Total
At June 30, 2018
United States		$	2,545.3			$	25.1			$	—			$	2,570.4
United Kingdom			732.1				7.1				—				739.2
Canada			360.0				—				—				360.0
Australia			400.7				—				—				400.7
New Zealand			204.5				10.4				—				214.9
Other foreign			115.9				—				2.8				118.7
Total goodwill - net		$	4,358.5			$	42.6			$	2.8			$	4,403.9

		Brokerage				Risk Management				Corporate				Total
At December 31, 2017
United States		$	2,280.9			$	25.8			$	—			$	2,306.7
United Kingdom			738.5				7.2				—				745.7
Canada			374.0				—				—				374.0
Australia			416.6				—				—				416.6
New Zealand			209.3				9.6				—				218.9
Other foreign			99.9				—				3.0				102.9
Total goodwill - net		$	4,119.2			$	42.6			$	3.0			$	4,164.8

The changes in the carrying amount of goodwill for the six-month period ended June 30, 2018 are as follows (in millions):

		Brokerage				Risk Management				Corporate				Total
Balance as of December 31, 2017, as previously reported		$	4,152.3			$	42.6			$	3.0			$	4,197.9
Adoption of ASC Topic 606			(33.1	)			—				—				(33.1	)
Balance at December 31, 2017, as restated			4,119.2				42.6				3.0				4,164.8
Goodwill acquired during the period			291.8				2.7				—				294.5
Goodwill adjustments due to appraisals and other acquisition adjustments			2.5				(2.3	)			—				0.2
Foreign currency translation adjustments during the period			(55.0	)			(0.4	)			(0.2	)			(55.6	)
Balance as of June 30, 2018		$	4,358.5			$	42.6			$	2.8			$	4,403.9

Major classes of amortizable intangible assets at June 30, 2018 and December 31, 2017 consist of the following (in millions):

		June 30, 2018				December 31, 2017
Expiration lists		$	3,233.4			$	3,055.9
Accumulated amortization - expiration lists			(1,547.5	)			(1,422.1	)
			1,685.9				1,633.8
Non-compete agreements			54.9				53.5
Accumulated amortization - non-compete agreements			(47.4	)			(46.1	)
			7.5				7.4
Trade names			60.6				25.9
Accumulated amortization - trade names			(23.0	)			(22.5	)
			37.6				3.4
Net amortizable assets		$	1,731.0			$	1,644.6

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

2018 (remaining six months)		$	137.7
2019			263.9
2020			247.3
2021			224.0
2022			200.7
Thereafter			657.4
Total		$	1,731.0

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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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