XML 48 R35.htm IDEA: XBRL DOCUMENT v3.8.0.1

Income Taxes (Tables)

3 Months Ended

Mar. 31, 2018

Income Tax Disclosure [Abstract]

Schedule of Income Tax Provisions by Controlling and Noncontrolling Interests

The following table presents the consolidated provision for income taxes:

	For the Three Months Ended March 31,
	2017				2018
Controlling interest:
Current tax	$	22.4			$	47.3
Intangible-related deferred taxes	19.8				13.2
Other deferred taxes	15.6				0.3
Total controlling interest	57.8				60.8
Non-controlling interests:
Current tax	$	2.0			$	2.8
Deferred taxes	(0.1		)		(0.1		)
Total non-controlling interests	1.9				2.7
Provision for income taxes	$	59.7			$	63.5
Income before income taxes (controlling interest)	$	180.3			$	213.8
Effective tax rate (controlling interest)(1)	32.1		%		28.4		%

__________________________

⁽¹⁾  Taxes attributable to the controlling interest divided by Income before income taxes (controlling interest).

X

- Definition

Tabular disclosure of the components of income tax expense attributable to controlling and non-controlling interests for each year presented including, income before income taxes and effective tax rate attributable to controlling interests.

+ References

No definition available.

+ Details

Name:	amg_ScheduleOfComponentsOfIncomeTaxExpenseBenefitByControllingAndNoncontrollingInterestsTableTextBlock
Namespace Prefix:	amg_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	us-gaap_IncomeTaxDisclosureAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration