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SUPPLEMENTAL CONSOLIDATED FINANCIAL STATEMENT INFORMATION - Deferred Costs and Deferred Revenue (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2022
Jun. 30, 2021
Jan. 01, 2022
Dec. 31, 2021
Jan. 01, 2021
Deferred costs         $ 972   $ 1,847
Total deferred costs amortized $ 21 $ 85 $ 1,669 $ 3,907      
Deferred revenue 1,472 684 1,472 684 $ 1,344 $ 1,344 $ 1,779
Revenue recognized that was included in deferred revenue balances at beginning of period 0 0 936 1,779      
Prepaid expenses and other current assets              
Deferred costs $ 382 $ 92 $ 382 $ 92