Accrued and Other Current Liabilities (Detail) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Product Warranty Liability [Line Items]
Royalties and other fulfillment costs	$ 1,173	$ 1,149
Employee compensation, commissions and benefits	3,626	4,512
Sales, VAT and other taxes payable	1,302	1,231
Accrued royalties, fulfillment and other current liabilities, Napster acquisition contingent consideration	3,127	3,373
Operating Lease, Liability, Current	3,760	4,800
Other	2,242	2,785
Total accrued and other liabilities	$ 15,230	$ 17,850