XML 71 R60.htm IDEA: XBRL DOCUMENT v3.20.2
Revenue - Contract Balances (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Sep. 30, 2020
Dec. 31, 2019
Revenue    
Contract liabilities $ (494) $ (396)
Revenue recognized, included in contract assets $ 8,000 $ 242,000