Consolidated Balance Sheets (Parentheticals) - USD ($) $ in Thousands		Dec. 31, 2021	Dec. 31, 2020
Total assets	[1]	$ 18,459,199	$ 11,614,498
Total liabilities	[2]	$ 8,335,537	$ 5,928,460
Preferred stock, par value (in dollars per share)		$ 1.00	$ 1.00
Preferred stock, shares authorized (in shares)		7,054,000	7,054,000
Preferred stock, shares issued (in shares)		19,580	19,580
Preferred stock, shares outstanding (in shares)		19,580	19,580
Preferred stock, liquidation preference		$ 489,500	$ 489,500
Common stock, par value (in dollars per share)		$ 0.01	$ 0.01
Common stock, shares authorized (in shares)		750,000,000	750,000,000
Common stock, shares issued (in shares)		616,658,593	432,518,743
Common stock, shares outstanding (in shares)		616,658,593	432,518,743
Variable Interest Entity, Primary Beneficiary [Member] | Nonrecourse [Member]
Total liabilities		$ 153,924	$ 62,076
Variable Interest Entity, Primary Beneficiary [Member] | Asset Pledged as Collateral [Member]
Total assets		$ 227,858	$ 102,482

[1] Includes restricted assets of consolidated variable interest entities (“VIEs”) at December 31, 2021 and December 31, 2020 of $227,858 and $102,482, respectively. See Footnote 11 of the Notes to Consolidated Financial Statements.

[2] Includes non-recourse liabilities of consolidated VIEs at December 31, 2021 and December 31, 2020 of $153,924 and $62,076, respectively. See Footnote 11 of the Notes to Consolidated Financial Statements.