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REVENUE (Tables)
9 Months Ended
Sep. 30, 2021
Revenue from Contract with Customer [Abstract]  
Disaggregation of Revenue
The following table shows revenue by product and services groups (in thousands):
Three Months Ended
September 30,
Nine Months Ended
September 30,
2021202020212020
Licensing, support and maintenance$8,136 $5,211 $24,353 $14,005 
Variable royalties739 832 1,913 2,679 
Other84 386 164 682 
Total$8,959 $6,429 $26,430 $17,366 
Contract Balances on Condensed Consolidated Balance Sheet
The following table provides information about accounts receivable, net, contract assets and deferred revenue (in thousands):
As of
September 30,
2021
December 31,
2020
Accounts receivable, net$8,123 $14,350 
Contract assets$1,183 $1,359 
Deferred revenue$(38,248)$(32,908)
The following table is a rollforward of deferred revenue as of September 30, 2021 and December 31, 2020 (in thousands):
As of September 30, 2021
Deferred revenue licensing, support and maintenance - balance as of December 31, 2020
32,908 
Additions29,857 
Revenue recognized(24,517)
Deferred revenue licensing, support and maintenance - balance as of September 30, 2021$38,248 
As of
December 31, 2020
Deferred revenue licensing, support and maintenance - beginning balance as of December 31, 2019
$23,116 
Additions37,200 
Revenue recognized(27,408)
Deferred revenue licensing, support and maintenance - ending balance as of December 31, 2020
$32,908 
Capitalized Direct Commission Costs Total capitalized direct commission costs were as follows (in thousands):
As of
September 30,
2021
December 31,
2020
Short-term commissions capitalized in prepaid expenses and other current assets$1,660 $1,079 
Long-term commissions capitalized in other assets1,325 1,479 
Total$2,985 $2,558