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Notes Payable - Components of Notes Payable (Detail) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Debt Instrument [Line Items] |  |
Notes payable | $ 763,000 | $ 413,775
Unamortized debt issuance cost | (25) | (33)
Notes payable, net | 762,975 | 413,742
Unsecured Revolving Lines of Credit [Member] |  |
Debt Instrument [Line Items] |  |
Notes payable | 588,000 | 313,775
Series E senior notes [Member] | 2.35% Series E senior notes due in 2026 [Member] |  |
Debt Instrument [Line Items] |  |
Notes payable | 60,000 | 60,000
Series D senior notes [Member] | 2.57% Series D senior notes due in 2028 [Member] |  |
Debt Instrument [Line Items] |  |
Notes payable | 40,000 | $ 40,000
Series F Senior Notes [Member] | 6.25% Series F senior notes due in 2030 [Member] |  |
Debt Instrument [Line Items] |  |
Notes payable | $ 75,000 |

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