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Summary Of Significant Accounting Policies (Tables) | 9 Months Ended
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Sep. 30, 2024
Summary Of Significant Accounting Policies [Line Items] |
Fair Value Measurement Inputs and Valuation Techniques [Table Text Block] | The Company follows the authoritative guidance for fair value measurements when valuing its financial instruments for disclosure purposes. The table below presents for September 30, 2024 and December 31, 2023, the financial instruments that are being valued for disclosure purposes, as well as the Level at which they are categorized as defined in Accounting Standards Codification (“ASC”) 820 “Fair Value Measurements and Disclosures” (“ASC 820”).
Financial Instrument | Level
3-Month United States Treasury Bills | Level 1
Unsecured commercial paper | Level 1
Investment in securities | Level 1
Unsecured senior notes (1) | Level 1
Related party note receivable | Level 3
Notes receivable | Level 3
Sales-type lease receivable | Level 3
Mortgage notes payable | Level 3
Unsecured line of credit | Level 3
Unsecured term loans | Level 3
_______________ (1)If trading volume for the period is low, the valuation could be categorized as Level 2.
Fair Value, by Balance Sheet Grouping [Table Text Block] | The following table presents the aggregate carrying value of the Company’s non-recurring fair value financial instruments and the Company’s corresponding estimate of fair value as of September 30, 2024 and December 31, 2023 (in thousands):
| September 30, 2024 |  | December 31, 2023
| Carrying Amount |  | Estimated Fair Value |  | Carrying Amount |  | Estimated Fair Value
3-Month United States Treasury Bills (1) | $ | 175,944 |  |  | $ | 175,944 |  |  | $ | 302,746 |  |  | $ | 302,746 |
Related party note receivable, net | $ | 88,788 |  |  | $ | 90,138 |  |  | $ | 88,779 |  |  | $ | 90,593 |
Note receivable, net | 3,937 |  |  | 4,799 |  |  | 1,714 |  |  | 1,677 |
Sales-type lease receivable, net | 14,429 |  |  | 13,563 |  |  | 13,704 |  |  | 13,338 |
Total | $ | 107,154 |  |  | $ | 108,500 |  |  | $ | 104,197 |  |  | $ | 105,608 |
Mortgage notes payable, net | $ | 4,275,155 |  |  | $ | 3,907,688 |  |  | $ | 4,166,379 |  |  | $ | 3,705,513 |
Unsecured senior notes, net | 10,642,033 |  |  | 10,191,058 |  |  | 10,491,617 |  |  | 9,697,393 |
Unsecured line of credit | — |  |  | — |  |  | — |  |  | — |
Unsecured term loans, net | 798,058 |  |  | 800,303 |  |  | 1,198,301 |  |  | 1,196,945 |
Unsecured commercial paper | 500,000 |  |  | 500,000 |  |  | — |  |  | — |
Total | $ | 16,215,246 |  |  | $ | 15,399,049 |  |  | $ | 15,856,297 |  |  | $ | 14,599,851 |
_______________ (1) Per the guidance in ASC 326 “Financial Instruments — Credit Losses” (“ASC 326”), the Company concluded that the risk of nonpayment is nonexistent because the U.S. Government has a long history with no credit losses and, therefore, no credit loss allowance was recorded.
Schedule of Derivative Assets at Fair Value [Table Text Block] | The following table presents the aggregate fair value of the Company’s interest rate swaps as of September 30, 2024 and December 31, 2023 (in thousands):
Fair value |  | September 30, 2024 |  | December 31, 2023
Interest rate swaps |  | $ | (10,191) |  |  | $ | 1,976 |

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- Definition Tabular disclosure of input and valuation technique used to measure fair value and change in valuation approach and technique for each separate class of asset and liability measured on recurring and nonrecurring basis. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 103 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482078/820-10-55-103 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (bbb)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (bbb)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 + Details
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- Definition Tabular disclosure of derivative assets at fair value. + References No definition available. + Details
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