Nature of Business and Organization (Tables)

12 Months Ended

Dec. 31, 2016

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Schedule of Conversions of Stock

The following partnership units were exchanged for APAM Class A common stock during the year ended December 31, 2016:

Date of Exchange	Total Units Exchanged	Class A Common Units	Class B Common Units	Class E Common Units
March 3, 2016	764,971	—	754,971	10,000
May 3, 2016	761,673	—	751,673	10,000
August 2, 2016	67,426	—	42,426	25,000
November 8, 2016	85,437	—	—	85,437
Total Units Exchanged 2016	1,679,507	—	1,549,070	130,437