Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands		Jun. 30, 2022	Dec. 31, 2021
Available-for-sale securities, amortized cost		$ 150,057	$ 149,999
Fair value carrying amount		$ 1,987,480
Common stock, par value (USD per share)		$ 0.001	$ 0.001
Common stock authorized (shares)		200,000,000	200,000,000
Common stock issued (shares)		31,814,178	20,774,716
Common stock outstanding (shares)		31,814,178	20,774,716
Variable interest asset entities	[1]	$ 2,774,542	$ 2,945,979
Variable interest liability entities	[1]	2,312,917	2,544,879
Variable Interest Entity Primary Beneficiary
Variable interest asset entities		200,782
Variable Interest Entity Primary Beneficiary | Nonrecourse
Variable interest liability entities		$ 184,458
10% Senior Secured Notes
Fair value carrying amount			$ 395,000

[1] As of June 30, 2022, includes $200,782 of assets related to consolidated variable interest entities that can be used only to settle obligations of the consolidated variable interest entities and $184,458 of liabilities of consolidated variable interest entities for which creditors do not have recourse to the general credit of the Company. See Note 7.