Other Assets - Investment in a Technology Partner (Details) - USD ($) $ in Thousands	1 Months Ended			6 Months Ended		12 Months Ended
	Feb. 28, 2021	Apr. 30, 2018	Dec. 31, 2016	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items]
Cash purchase of shares				$ 5,000	$ 0
Series A-1 Preferred Stock
Accounts, Notes, Loans and Financing Receivable [Line Items]
Shares issued during period, conversion (in shares)		135,135
Technology Partner
Accounts, Notes, Loans and Financing Receivable [Line Items]
Cash purchase of shares	$ 5,000		$ 300
Converted debt amount		$ 300
Gain on sale						$ 700
Investment				$ 5,700		$ 700
Technology Partner | Series B-2 Preferred Stock
Accounts, Notes, Loans and Financing Receivable [Line Items]
Shares purchased (in shares)	1,000,000