Concentration (Tables)

12 Months Ended

Dec. 31, 2017

Risks and Uncertainties [Abstract]

Concentration

	Years ended December 31,
(in thousands)	2017			2016			2015
Advisory fees from our largest client:
Asset-based fees	$	6,312		$	4,872		$	2,109
Performance-based fees	—			—			2,206
Percent of fee revenue	4.8		%	4.0		%	3.3		%