XML 50 R38.htm IDEA: XBRL DOCUMENT v3.21.2
Revenue - Additional Information (Details)
9 Months Ended
Sep. 30, 2021
USD ($)
Revenue from Contract with Customer [Abstract]  
Change in net contract assets $ (5,700,000)
Percent of contract liabilities 75.00%
Impairment losses on contract assets $ 0