Goodwill and Intangible Assets - Goodwill and Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Goodwill
Beginning balance	$ 17,975	$ 19,120
Currency revaluation	(291)	(1,145)
Ending balance	17,684	17,975	$ 19,120
Finite Lived Intangible Assets
Finite lived intangible assets, gross			362
Amortization	(89)	(89)	(89)
Finite Lived Intangible Assets	184	273
Indefinite Lived Intangible Assets
Fund management contracts	$ 1,250	$ 1,250	$ 1,250