Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Preferred stock authorized (shares)	50,000,000	50,000,000
Common stock par value (usd per share)	$ 0.01	$ 0.01
Common stock authorized (shares)	300,000,000	300,000,000
Common stock issued (shares)	65,271,058	59,519,754
Common stock outstanding (shares)	61,370,732	55,619,428
Treasury stock, held (shares)	3,900,326	3,900,326
Loan repayment proceeds	$ 0	$ 15,900
Restricted cash	2,283	0
Expected loss reserve for unfunded loan commitments	1,500	900
Primary Beneficiary | Collateralized Loan Obligations
Cash	$ 54,000	$ 0
Voting Preferred Stock
Preferred stock par value (usd per share)	$ 0.01	$ 0.01
Preferred stock issued (shares)	0	1
Preferred stock outstanding (shares)	0	1
6.5% Series A Cumulative Redeemable Preferred Stock
Preferred stock par value (usd per share)	$ 0.01
Preferred stock issued (shares)	6,900,000	0
Preferred stock outstanding (shares)	6,900,000	0
Preferred stock liquidation preference (usd per share)	$ 25.00