Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurement- Assets and Liabilities Measured at Fair Value (Details)

v3.21.2
Fair Value Measurement- Assets and Liabilities Measured at Fair Value (Details) - USD ($)
Jun. 30, 2021
Dec. 31, 2020
Liabilities    
Convertible notes $ 200,900,000 $ 197,700,000
Fair Value    
Assets    
Investment in LMC 182,251,126 330,556,744
Total assets at fair value 182,251,126 330,556,744
Liabilities    
Convertible notes 200,900,000 197,700,000
Total liabilities at fair value 200,900,000 197,700,000
Fair Value | Level 1    
Assets    
Investment in LMC 182,251,126 330,556,744
Total assets at fair value 182,251,126 330,556,744
Liabilities    
Convertible notes 0 0
Total liabilities at fair value 0 0
Fair Value | Level 2    
Assets    
Investment in LMC 0 0
Total assets at fair value 0 0
Liabilities    
Convertible notes 0 0
Total liabilities at fair value 0 0
Fair Value | Level 3    
Assets    
Investment in LMC 0 0
Total assets at fair value 0 0
Liabilities    
Convertible notes 200,900,000 197,700,000
Total liabilities at fair value $ 200,900,000 $ 197,700,000