Quarterly report pursuant to Section 13 or 15(d)

Investments in Non-Marketable Securities - Narrative (Details)

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Investments in Non-Marketable Securities - Narrative (Details) - USD ($)
1 Months Ended 3 Months Ended 6 Months Ended
Jul. 31, 2021
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2022
Jun. 30, 2021
Mar. 31, 2022
Dec. 31, 2021
Nov. 30, 2020
Marketable Securities [Line Items]                
Available-for-sale non-marketable interest-bearing debt securities   $ 0   $ 0     $ 0 $ 1,000,000
Non-marketable debt security at carrying value               $ 1,300,000
Interest income from amortization of discount     $ 200,000   $ 300,000      
Unrealized or realized gains or losses   0 $ 0 0 $ 0      
seqWell                
Marketable Securities [Line Items]                
Equity securities without readily determinable fair value (in shares)           1,000,000    
Investment in non-marketable equity securities   $ 5,000,000   $ 5,000,000   $ 5,000,000 $ 0  
Series B-2 Preferred Stock                
Marketable Securities [Line Items]                
Non-marketable debt security (in shares) 207,070