Quarterly report pursuant to Section 13 or 15(d)

Derivatives. (Details)

v3.21.2
Derivatives. (Details) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Derivative [Member]        
Derivatives. (Details) [Line Items]        
Recognized gains and losses due to change in fair value $ 8,868,000 $ 0 $ 19,411,000 $ 0