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Benefit Plans | 12 Months Ended
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Dec. 31, 2015
Compensation and Retirement Disclosure [Abstract] |
Benefit Plans | Benefit Plans The Company has three defined contribution plans consisting of a qualified employee profit-sharing plan covering substantially all of its full-time employees and several of its Affiliates, and non-qualified plans for certain senior employees. AMG’s other Affiliates generally have separate defined contribution retirement plans. Under each of the qualified plans, AMG and each participating Affiliate, as the case may be, are able to make discretionary contributions for the benefit of qualified plan participants up to Internal Revenue Service limits. The Company has a Deferred Compensation Plan that provides officers and directors of the Company the opportunity to voluntarily defer base salary, bonus payments and director fees, as applicable, on a pre-tax basis, and invest such deferred amounts in one or more specified measurement funds. While the Company has no obligation to do so, the Deferred Compensation Plan also provides the Company the opportunity to make discretionary contributions; in the event any such contributions are made, contributed amounts will be subject to vesting and forfeiture provisions. Consolidated expenses related to the Company’s benefit plans in 2013, 2014 and 2015 were $14.1 million, $17.2 million and $18.7 million, respectively.

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