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v3.23.3

Fair value measurements - Assets and Liabilities on Recurring and Nonrecurring Basis (Details) $ in Thousands | 9 Months Ended |
--- | --- | ---
Sep. 30, 2023 USD ($) transfer | Dec. 31, 2022 USD ($)
Assets and liabilities measured at fair value |  |
Transfers in Fair Value Hierarchy | transfer | 0 |
Investments | $ 1,431,766 | $ 1,615,074
Fair Value Measurements, Nonrecurring Value Measurement [Abstract] |  |
Secured notes payable | 109,110 | 59,045
Unsecured senior notes payable | 11,093,725 | 10,100,717
Unsecured senior lines of credit | 0 | 0
Book value |  |
Fair Value Measurements, Nonrecurring Value Measurement [Abstract] |  |
Secured notes payable | 109,110 | 59,045
Unsecured senior notes payable | 11,093,725 | 10,100,717
Book value | Commercial Paper |  |
Fair Value Measurements, Nonrecurring Value Measurement [Abstract] |  |
Commercial paper program | 0 | 0
Book value | Unsecured senior line of credit |  |
Fair Value Measurements, Nonrecurring Value Measurement [Abstract] |  |
Unsecured senior lines of credit | 0 | 0
Fair Value | Fair value measured on nonrecurring basis |  |
Fair Value Measurements, Nonrecurring Value Measurement [Abstract] |  |
Secured notes payable, fair value | 108,299 | 58,811
Unsecured senior notes payable, fair value | 8,902,593 | 8,539,015
Fair Value | Fair value measured on nonrecurring basis | Commercial Paper |  |
Fair Value Measurements, Nonrecurring Value Measurement [Abstract] |  |
Commercial paper, fair value disclosure | 0 | 0
Fair Value | Fair value measured on nonrecurring basis | Unsecured senior line of credit |  |
Fair Value Measurements, Nonrecurring Value Measurement [Abstract] |  |
Unsecured senior lines of credit, fair value | 0 | 0
Fair Value | Fair value measured on nonrecurring basis | Quoted prices in active markets for identical assets (Level 1) | Commercial Paper |  |
Fair Value Measurements, Nonrecurring Value Measurement [Abstract] |  |
Commercial paper, fair value disclosure | 0 | 0
Fair Value | Fair value measured on nonrecurring basis | Quoted prices in active markets for identical assets (Level 1) | Unsecured senior line of credit |  |
Fair Value Measurements, Nonrecurring Value Measurement [Abstract] |  |
Unsecured senior lines of credit, fair value | 0 | 0
Fair Value | Fair value measured on nonrecurring basis | Significant other observable inputs (Level 2) |  |
Fair Value Measurements, Nonrecurring Value Measurement [Abstract] |  |
Secured notes payable, fair value | 108,299 | 58,811
Unsecured senior notes payable, fair value | 8,902,593 | 8,539,015
Fair Value | Fair value measured on nonrecurring basis | Significant other observable inputs (Level 2) | Commercial Paper |  |
Fair Value Measurements, Nonrecurring Value Measurement [Abstract] |  |
Commercial paper, fair value disclosure | 0 | 0
Fair Value | Fair value measured on nonrecurring basis | Significant other observable inputs (Level 2) | Unsecured senior line of credit |  |
Fair Value Measurements, Nonrecurring Value Measurement [Abstract] |  |
Unsecured senior lines of credit, fair value | 0 | 0
Fair Value | Fair value measured on nonrecurring basis | Significant unobservable input (Level 3) | Commercial Paper |  |
Fair Value Measurements, Nonrecurring Value Measurement [Abstract] |  |
Commercial paper, fair value disclosure | 0 | 0
Fair Value | Fair value measured on nonrecurring basis | Significant unobservable input (Level 3) | Unsecured senior line of credit |  |
Fair Value Measurements, Nonrecurring Value Measurement [Abstract] |  |
Unsecured senior lines of credit, fair value | 0 | 0
Investments in publicly traded companies |  |
Assets and liabilities measured at fair value |  |
Investments at fair value | 129,586 | 207,139
Investments in publicly traded companies | Fair Value | Fair value measured on recurring basis |  |
Assets and liabilities measured at fair value |  |
Investments at fair value | 129,586 | 207,139
Investments in publicly traded companies | Fair Value | Fair value measured on recurring basis | Quoted prices in active markets for identical assets (Level 1) |  |
Assets and liabilities measured at fair value |  |
Investments at fair value | 129,586 | 207,139
Investments in publicly traded companies | Fair Value | Fair value measured on recurring basis | Significant other observable inputs (Level 2) |  |
Assets and liabilities measured at fair value |  |
Investments at fair value | 0 | 0
Investments in publicly traded companies | Fair Value | Fair value measured on recurring basis | Significant unobservable input (Level 3) |  |
Assets and liabilities measured at fair value |  |
Investments at fair value | 0 | 0
Investments in privately held entities that report NAV |  |
Assets and liabilities measured at fair value |  |
Investments at fair value | 658,789 | 759,752
Entities without observable price changes | Investments in privately held entities that do not report NAV |  |
Fair Value Measurements, Nonrecurring Value Measurement [Abstract] |  |
Investments in privately held entities that do not report fair value, book value | 387,755 | 388,940
Entities without observable price changes | Investments in privately held entities that do not report NAV | Fair Value | Fair value measured on nonrecurring basis |  |
Fair Value Measurements, Nonrecurring Value Measurement [Abstract] |  |
Investments in privately held entities that do not report fair value, book value | 200,370 | 212,262
Entities without observable price changes | Investments in privately held entities that do not report NAV | Fair Value | Fair value measured on nonrecurring basis | Quoted prices in active markets for identical assets (Level 1) |  |
Fair Value Measurements, Nonrecurring Value Measurement [Abstract] |  |
Investments in privately held entities that do not report fair value, book value | 0 | 0
Entities without observable price changes | Investments in privately held entities that do not report NAV | Fair Value | Fair value measured on nonrecurring basis | Significant other observable inputs (Level 2) |  |
Fair Value Measurements, Nonrecurring Value Measurement [Abstract] |  |
Investments in privately held entities that do not report fair value, book value | 181,726 | 193,784
Entities without observable price changes | Investments in privately held entities that do not report NAV | Fair Value | Fair value measured on nonrecurring basis | Significant unobservable input (Level 3) |  |
Fair Value Measurements, Nonrecurring Value Measurement [Abstract] |  |
Investments in privately held entities that do not report fair value, book value | $ 18,644 | $ 18,478

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- Definition Including the current and noncurrent portions, fair value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer). Senior note holders are paid off in full before any payments are made to junior note holders. + References No definition available. + Details
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- Definition Carrying value as of the balance sheet date of short-term borrowings using unsecured obligations issued by banks, corporations and other borrowers to investors. The maturities of these money market securities generally do not exceed 270 days. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(16)(a)(1)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479440/944-210-S99-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(13)(2)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479853/942-210-S99-1 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(19)(a)(3)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 + Details
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- Definition Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI), classified as current. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(2)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Subparagraph (f) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483467/210-10-45-1 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 1A -Publisher FASB -URI https://asc.fasb.org//1943274/2147482736/825-10-45-1A + Details
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- Definition The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -SubTopic 10 -Topic 210 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(16)(a)(2)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479440/944-210-S99-1 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479853/942-210-S99-1 + Details
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- Definition Carrying value as of the balance sheet date, including the current and noncurrent portions, of collateralized debt obligations (with maturities initially due after one year or beyond the operating cycle, if longer). Such obligations include mortgage loans, chattel loans, and any other borrowings secured by assets of the borrower. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -SubTopic 10 -Topic 210 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(16)(a)(2)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479440/944-210-S99-1 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479853/942-210-S99-1 + Details
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