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Real Estate Investments (Details) $ in Thousands, ft² in Millions | 12 Months Ended
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Dec. 31, 2022 USD ($) ft² site state item property | Dec. 31, 2021 USD ($) ft² site state item property | Dec. 31, 2020 USD ($)
Real Estate Investments |  |  |
Number of Real Estate Properties | property | 1,839 | 1,404 |
Land Subject to Ground Leases | ft² | 38.1 | 29.1 |
Net Real Estate Investments | $ 5,741,068 | $ 4,367,111 |
Retail Net Lease Assets Purchased | item | 434 | 290 |
Payments to Acquire Property, Plant, and Equipment | $ 1,600,000 | $ 1,390,000 |
Mortgage notes assumed | $ 42,300 | $ 42,300 |
Number Of States Properties Located | state | 43 | 43 |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life (in year) | 10 years 2 months 12 days | 11 years 6 months |
Payments to Acquire Land Held-for-use | $ 387,700 | $ 476,800 |
Payments for Capital Improvements | 1,000,000 | 654,300 |
Payments to Acquire Intangible Assets | 204,900 | $ 250,700 |
Mortgage debt discount | $ 2,548 |  |
Number Of Development And Partner Capital Solutions Projects Completed | site | 7 | 4 |
Number of Development and Partner Capital Solutions Projects Construction | site | 24 |  |
Proceeds from Sale of Real Estate | $ 44,900 | $ 56,000 | $ 47,700
Gains on Sales of Investment Real Estate | 5,300 | $ 14,900 | 8,000
Number of real estate properties held-for-sale | property |  | 1 |
Provision for impairment | 1,015 | $ 1,919 | 4,137
Impaired Real Estate Estate Fair Value | $ 1,800 | $ 1,000 | $ 11,900

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