XML 36 R26.htm IDEA: XBRL DOCUMENT v3.22.1
Revenue (Narrative) (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Dec. 31, 2021
Revenue [Abstract]      
Revenue $ 0 $ 0  
Contract assets 0   $ 0
Contract liabilities $ 0   $ 0