Quarterly report pursuant to Section 13 or 15(d)

Revenue (Contract Assets and Liabilities) (Details)

v3.22.1
Revenue (Contract Assets and Liabilities) (Details) - USD ($)
3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Dec. 31, 2021
Revenue from Contract with Customer [Abstract]      
Contract assets $ 563,000   $ 446,000
Contract with customer, liability 11,300,000   $ 12,400,000
Contract with customer, performance obligation satisfied in previous period $ 0 $ 0