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Indebtedness - Summary Information Concerning Indebtedness (Detail) - USD ($) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2024 | Dec. 31, 2023
Debt Instrument [Line Items] |  |
Outstanding Principal | $ 2,247,009,000 | $ 2,515,698,000
Unamortized Debt Issuance Costs | (9,715,000) | (10,772,000)
Unamortized Loan (Discount)/Premiums | 39,804,000 | 44,483,000
Carrying Amount | $ 2,277,098,000 | $ 2,549,409,000
Weighted Average Contractual Rate | 4.80% | 4.80%
Weighted Average Hedged Effective Rate | 4.20% | 4.20%
Weighted Average Maturity (in years) | 3 years 10 months 24 days | 4 years
Indebtedness associated with real estate held for sale | $ 64,825,000 | $ 122,621,000
Unsecured revolver |  |
Debt Instrument [Line Items] |  |
Outstanding Principal | 108,978,000 | 234,479,000
Unamortized Debt Issuance Costs | (884,000) | (1,117,000)
Unamortized Loan (Discount)/Premiums | 0 | 0
Carrying Amount | $ 108,094,000 | $ 233,362,000
Weighted Average Contractual Rate | 6.60% | 6.60%
Weighted Average Hedged Effective Rate | 4.80% | 5.40%
Weighted Average Maturity (in years) | 1 year 9 months 18 days | 2 years 1 month 6 days
Credit facility borrowing capacity | $ 500,000,000 | $ 500,000,000
Unsecured term loans |  |
Debt Instrument [Line Items] |  |
Outstanding Principal | 600,000,000 | 600,000,000
Unamortized Debt Issuance Costs | (2,302,000) | (2,456,000)
Unamortized Loan (Discount)/Premiums | 0 | 0
Carrying Amount | $ 597,698,000 | $ 597,544,000
Weighted Average Contractual Rate | 6.50% | 6.50%
Weighted Average Hedged Effective Rate | 4.40% | 3.90%
Weighted Average Maturity (in years) | 3 years 3 months 18 days | 3 years 6 months
Secured credit facilities |  |
Debt Instrument [Line Items] |  |
Outstanding Principal | $ 585,635,000 | $ 586,286,000
Unamortized Debt Issuance Costs | (2,210,000) | (1,949,000)
Unamortized Loan (Discount)/Premiums | 20,594,000 | 21,762,000
Carrying Amount | $ 604,019,000 | $ 606,099,000
Weighted Average Contractual Rate | 4.20% | 4.20%
Weighted Average Hedged Effective Rate | 4.40% | 4.60%
Weighted Average Maturity (in years) | 4 years 8 months 12 days | 4 years 10 months 24 days
Mortgages |  |
Debt Instrument [Line Items] |  |
Outstanding Principal | $ 952,396,000 | $ 1,094,933,000
Unamortized Debt Issuance Costs | (4,319,000) | (5,250,000)
Unamortized Loan (Discount)/Premiums | 19,210,000 | 22,721,000
Carrying Amount | $ 967,287,000 | $ 1,112,404,000
Weighted Average Contractual Rate | 3.80% | 3.80%
Weighted Average Hedged Effective Rate | 4.00% | 4.00%
Weighted Average Maturity (in years) | 4 years 2 months 12 days | 4 years 3 months 18 days

X
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