Quarterly report pursuant to Section 13 or 15(d)

Revenues - Narrative (Details)

v3.21.1
Revenues - Narrative (Details) - USD ($)
Mar. 31, 2021
Dec. 31, 2020
Revenue from Contract with Customer [Abstract]    
Contract assets $ 4,600,000 $ 2,100,000
Contract liabilities $ 0 $ 0