Notes Payable, Bank Credit Facility, Interest Expense and Amortization of Deferred Debt Costs - Scheduled Maturities of All Debt, Including Scheduled Principal Amortization (Detail) - USD ($)	Dec. 31, 2022	Dec. 31, 2021
Balloon Payments
2023	$ 9,225,000
2024	50,117,000
2025	184,363,000
2026	134,088,000
2027	100,000,000
Thereafter	440,093,000
Balloon Payments	917,886,000
Scheduled Principal Amortization
2023	32,926,000
2024	33,566,000
2025	31,423,000
2026	28,062,000
2027	23,454,000
Thereafter	171,366,000
Scheduled Principal Amortization	320,797,000
Total
2023	42,151,000
2024	83,683,000
2025	215,786,000
2026	162,150,000
2027	123,454,000
Thereafter	611,459,000
Principal amount	1,238,683,000	$ 1,200,000,000
Unamortized deferred debt costs	15,783,000	$ 11,200,000
Net	1,222,900,000
Line of Credit
Total
Line of credit facility, maximum borrowing capacity	525,000,000
Line of Credit | New Facility
Total
Long-term debt, gross	164,000,000
Term Facility | Line of Credit
Total
Line of credit facility, maximum borrowing capacity	$ 100,000,000