Real Estate and Other Activities - Prospect - Additional Information (Detail) $ in Thousands		1 Months Ended		3 Months Ended			12 Months Ended
	May 23, 2023 USD ($)	Apr. 30, 2026 USD ($)	Aug. 31, 2019 USD ($) Hospital	Mar. 31, 2026 USD ($)	Mar. 31, 2025 USD ($)	Dec. 31, 2024 USD ($)	Dec. 31, 2025 USD ($)
Business Combination [Line Items]
Proceeds from sale of investments				$ 31,000	$ 12,000
Investment in loans receivable				71,024	21,800
Prospect [Member]
Business Combination [Line Items]
Purchase price of acquisition			$ 1,600,000
Pay down of debt instruments	$ 375,000
Reconstitution of asset	1,700,000
Mortgage Loans [Member] | Prospect [Member]
Business Combination [Line Items]
First lien secured loan	150,000
Maximum [Member] | Prospect [Member]
Business Combination [Line Items]
First lien secured loan	$ 75,000
Acute Care Campus [Member] | Prospect [Member]
Business Combination [Line Items]
Number of facilities acquired | Hospital			14
Prospect [Member]
Business Combination [Line Items]
Asset sales and collection of Connecticut accounts receivable		$ 9,000		45,000
Funded investment				45,000
Remaining funded investment				25,000
Recover of investments in Prospect				$ 61,000
Prospect [Member] | PHP Holdings [Member]
Business Combination [Line Items]
Loan impairment charges						$ 400,000
Asset impairment charges					$ 55,000		$ 140,000
Prospect [Member] | Minimum [Member] | Income Valuation Approach [Member] | Level 3 [Member]
Business Combination [Line Items]
Market capitalization rate				8.25%
Prospect [Member] | Maximum [Member]
Business Combination [Line Items]
Funded investment				$ 70,000
Prospect [Member] | Maximum [Member] | Income Valuation Approach [Member] | Level 3 [Member]
Business Combination [Line Items]
Market capitalization rate				8.50%