XML 23 R10.htm IDEA: XBRL DOCUMENT
v3.7.0.1

Investments in Affiliates and Sponsored Investments Products | 3 Months Ended
--- | ---
Mar. 31, 2017
Variable Interest Entities |
Investments in Affiliates and Sponsored Investments Products | Investments in Affiliates and Affiliate Sponsored Investment Products In evaluating whether an investment must be consolidated, the Company evaluates the risk, rewards, and significant terms of each of its Affiliate and other investments to determine if an investment is considered a voting rights entity (“VRE”) or a variable interest entity (“VIE”). An entity is a VRE when the entity’s total equity investment at risk is sufficient to enable the entity to finance its activities independently and when the equity holders have the obligation to absorb losses, the right to receive residual returns and the right to direct the activities of the entity that most significantly impact its economic performance. An entity is a VIE when it lacks one or more of the characteristics of a VRE. Assessing whether an entity is a VRE or VIE involves judgment. Upon the occurrence of certain events, management reviews and reconsiders its previous conclusion regarding the status of an entity as a VRE or a VIE. The Company consolidates VREs when it has control over significant operating, financial and investing decisions of the VRE or holds the majority voting interest. The Company consolidates VIEs when it has a controlling financial interest, which is defined as having the power to direct the activities that most significantly impact the VIE’s economic performance and the obligation to absorb losses of or the right to receive benefits from the entity that could potentially be significant to the VIE. Investments in Affiliates Substantially all of the Company’s Affiliates are considered VIEs. The unconsolidated assets, net of liabilities and non-controlling interests, of Affiliates considered VIEs and accounted for under the equity method of accounting, was $1.0 billion as of both December 31, 2016 and March 31, 2017. The Company’s carrying value and maximum exposure to loss for these Affiliates was $2.8 billion as of both December 31, 2016 and March 31, 2017. Affiliate Sponsored Investment Products The Company’s consolidated Affiliates sponsor various investment products for which they also act as the investment advisor, and, in some cases, these products are considered VIEs. These investment products are typically owned primarily by third-party investors; however, certain products are capitalized with seed capital investments from Affiliates. Third-party investors are generally entitled to substantially all of the economics of these VIEs, except for the management and performance fees earned by Affiliates or any gains or losses attributable to Affiliates’ investments in these products. As a result, Affiliates do not generally consolidate these VIEs unless the Affiliate’s interest in the product is considered substantial. When consolidating these VIEs, the Company retains the specialized investment company accounting principles of the underlying products, and all of the underlying investments are carried at fair value in Investments in marketable securities with corresponding changes in the investments’ fair values reflected in Other operating expenses (net). Purchases and sales of securities are presented within purchases and sales by Affiliate sponsored consolidated products in the Consolidated Statements of Cash Flows. When Affiliates no longer control these products, due to a reduction in ownership or other reasons, the products are deconsolidated. The Company's Affiliates’ involvement with unconsolidated VIEs is generally limited to that of a service provider, and their investment, if any, represents an insignificant interest in the relevant investment entities’ net assets under management. The Company's Affiliates’ exposure to risk in these entities is generally limited to any capital contribution it has made or is required to make and any earned but uncollected management and performance fees. The Company and its Affiliates have not issued any investment performance guarantees to these VIEs or their investors. The net assets and liabilities of unconsolidated VIEs and the Company’s maximum risk of loss were as follows:
| December 31, 2016 |  | March 31, 2017
| Unconsolidated VIE Net Assets |  | Carrying Value and Maximum Exposure to Loss |  | Unconsolidated VIE Net Assets |  | Carrying Value and Maximum Exposure to Loss
Affiliate sponsored investment products | $ | 1,756.6 |  |  | $ | 9.4 |  |  | $ | 1,818.5 |  |  | $ | 9.7 |

X
- Definition -- None. No documentation exists for this element. -- + References No definition available. + Details
Name: | amg_VariableInterestEntitiesDisclosureAbstract
Namespace Prefix: | amg_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition This element represents the disclosure of variable interest entities (VIE), including, but not limited to the nature, purpose, size, and activities of the VIE, the carrying amount and classification of consolidated assets that are collateral for the VIE's obligations, lack of recourse if creditors (or beneficial interest holders) of a consolidated VIE have no recourse to the general credit of the primary beneficiary. Which also include information related to Sponsored Investment Funds and Trust Preferred Vehicles related to variable interest entities (VIE). + References No definition available. + Details
Name: | amg_VariableInterestEntitiesDisclosureTextBlock
Namespace Prefix: | amg_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration