XML 56 R45.htm IDEA: XBRL DOCUMENT v3.21.2
License and Royalty Revenue - Summary of Accounts Recerivable, Net (Detail) - USD ($)
$ in Thousands
Sep. 30, 2021
Dec. 31, 2020
Current accounts receivable:    
Billed to customers $ 30,248 $ 30,573
Unbilled 28,979 20,104
Allowance for credit losses (13,210) (7,678)
Current accounts receivable, net 46,017 42,999
Non-current accounts receivable:    
Unbilled 2,730 3,267
Non-current accounts receivable, net 2,730 3,267
Total accounts receivable, net $ 48,747 $ 46,266