Debt Obligations - Additional Information (Details) - USD ($)								3 Months Ended		12 Months Ended
	Jan. 24, 2023	Jan. 23, 2023	Jan. 13, 2023	Jan. 12, 2023	Nov. 04, 2022	Jun. 29, 2022	Dec. 02, 2021	Mar. 31, 2024	Dec. 31, 2023	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Feb. 08, 2021	Dec. 01, 2020	Aug. 09, 2019
Debt Instrument [Line Items]
Secured term loan														$ 325,000,000	$ 450,000,000
One-month SOFR							4.50%
Senior mortgage amount													$ 300,000,000
Gain on extinguishment of debt										$ 2,217,000
Contractual Maturity Date	Jan. 26, 2024	Jan. 26, 2023	May 31, 2024	May 31, 2023
Interest expense										470,512,000	$ 246,937,000	$ 180,589,000
General and administrative expenses										$ 16,605,000	$ 18,686,000	$ 12,591,000
Debt instrument, variable interest rate basis										0	0
Financing agreements, covenants description										Our financing agreements generally contain certain financial covenants. For example, our ratio of earnings before interest, taxes, depreciation, and amortization (“EBITDA”), to interest charges, as defined in the agreements, shall be not less than either 1.3 to 1.0 or 1.5 to 1.0. Further, (i) our tangible net worth, as defined in the agreements, shall not be less than $2.06 billion as of each measurement date plus 75% of proceeds from future equity issuances; (ii) cash liquidity shall not be less than the greater of (x) $50 million or (y) 5% of our recourse indebtedness; and (iii) our indebtedness shall not exceed 77.8% of our total assets. As of December 31, 2023 and 2022, we are in compliance with all covenants under our financing agreements. The requirements set forth in (i) through (iii) above are based upon the most restrictive financial covenants in place as of the reporting date. For the quarters ended December 31, 2023 and March 31, 2024, we modified certain of our EBITDA to interest charges covenants to provide for a minimum ratio of 1.3 to 1.0 for such covenants which previously required a minimum ratio of 1.4 to 1.0. Future compliance with our financial covenants is dependent upon the results of our operating activities, our financial condition, and the overall market conditions in which we and our borrowers operate. As market conditions evolve, we may work with our counterparties to request modifications of financial covenants as needed.
Percentage of proceeds from future equity issuances added for tangible net worth										75.00%
Percentage of recourse indebtedness										5.00%
Percentage of total assets as indebtedness										77.80%
Investment, Type [Extensible Enumeration]													Real Estate Investment
Minimum
Debt Instrument [Line Items]
Ratio of earnings before interest, taxes, depreciation and amortization to interest charges									1.30%	1.30%
Tangible networth as of measurement date										$ 2,060,000,000.00
Cash liquidity amount to be maintained									$ 50,000,000	$ 50,000,000
Minimum | Scenario Forecast
Debt Instrument [Line Items]
Ratio of earnings before interest, taxes, depreciation and amortization to interest charges								1.40%
Maximum
Debt Instrument [Line Items]
Ratio of earnings before interest, taxes, depreciation and amortization to interest charges										1.50%
Secured Overnight Financing Rate (SOFR)
Debt Instrument [Line Items]
One month LIBOR/ SOFR rate										5.35%	4.36%
Secured Term Loan
Debt Instrument [Line Items]
Principal payments										$ 1,900,000
Debt instrument purchased and retired amount									22,000,000	22,000,000
Loan repurchased, amount									19,300,000	19,300,000
Gain on extinguishment of debt										2,200,000
Unamortized deferred financing costs									500,000	$ 500,000
Contractual Maturity Date										Aug. 09, 2026	Aug. 09, 2026
Secured Term Loan | Secured Overnight Financing Rate (SOFR)
Debt Instrument [Line Items]
One month LIBOR/ SOFR rate										5.35%	4.36%
Secured Term Loan | Secured Overnight Financing Rate (SOFR) | Minimum
Debt Instrument [Line Items]
One-month SOFR							0.10%
Secured Term Loan | Secured Overnight Financing Rate (SOFR) | Maximum
Debt Instrument [Line Items]
One-month SOFR							0.50%
Short-Term Funding Facility
Debt Instrument [Line Items]
Line of credit, maximum borrowing capacity						$ 150,000,000
Credit facility outstanding balance									0	$ 0	$ 0
Contractual Maturity Date						Jun. 29, 2025
Credit spread adjustment rate						225
Line of credit facility increase						$ 500,000,000
Short-Term Funding Facility | Minimum
Debt Instrument [Line Items]
Credit facility initial advance rate						55.00%
Short-Term Funding Facility | Maximum
Debt Instrument [Line Items]
Credit facility initial advance rate						75.00%
Short-Term Funding Facility | Secured Overnight Financing Rate (SOFR)
Debt Instrument [Line Items]
One month LIBOR/ SOFR rate						0.10%
Term Participation Facility
Debt Instrument [Line Items]
Term facility unpaid principal balance									465,434,000	$ 465,434,000	$ 257,531,000
Contractual Maturity Date										Oct. 11, 2028	Dec. 21, 2027
Term Participation Facility | Master Participation and Administration Agreement | Mortgage Loans
Debt Instrument [Line Items]
Term facility maximum commitment									654,400,000	$ 654,400,000	$ 481,400,000
Term facility unpaid principal balance									$ 465,400,000	$ 465,400,000	$ 257,500,000
Maturity period										5 years
Maturity date										Oct. 11, 2028
Maturity date					Nov. 04, 2023