Other Assets - Components of Other Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Prepaid expenses and other assets	$ 6,098	$ 5,993
Rent deposits	1,856	1,764
Other tangible assets	264	368
Total other assets	$ 8,218	$ 8,125