General form of registration statement for all companies including face-amount certificate companies

Development Services Revenue - Additional Information (Details)

v3.21.2
Development Services Revenue - Additional Information (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Revenue from Contract with Customer [Abstract]    
Description of payment terms invoiced with net 30-to 60-day payment terms.  
Contract with customer asset net $ 0 $ 0
Contract with customer liability 0 0
Contract cost incurred during the period $ 0 $ 0