Accrued Expenses and Other Liabilities - Accrued Expenses and Other Current Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Accrued Expenses and Other Liabilities
Accrued payroll and related items	$ 3,383	$ 3,841
Artist payables	4,163	5,640
Accrued product costs	1,121	1,678
Operating lease liabilities	2,964	2,772
Contingent liabilities	1,194	1,087
Other	4,729	6,273
Accrued expenses and other current liabilities	$ 17,554	$ 21,291