Real Estate and Other Activities - Components of Total Investment in Financing Leases (Detail) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Direct Financing Lease Net Investment In Leases [Abstract]
Minimum lease payments receivable	$ 888,308	$ 1,183,855
Estimated unguaranteed residual values	203,818	203,818
Less: Unearned income and allowance for credit loss	(741,083)	(918,584)
Net investment in direct financing leases	351,043	469,089
Other financing leases (net of allowance for credit loss)	1,613,978	1,584,238
Total investment in financing leases	$ 1,965,021	$ 2,053,327