Consolidation - Additional Information (Details) - Product |
Dec. 31, 2015 |
Dec. 31, 2014 |
|---|---|---|
| Organization, Consolidation and Presentation of Financial Statements [Abstract] | ||
| Number of consolidated products | 13 | 12 |
| Number of consolidated sponsored investment products | 12 | 12 |
| Number of consolidated investment products | 1 | 0 |