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Fair Values (Schedule of Fair Value Measurement) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Assets and liabilities recorded at fair value |  |  |
Loan receivable held for sale | $ 43,215 |  |
Other investments | 1,297,281 | $ 1,097,562 |
Impairment of real estate - Held for sale |  | 3,100 |
Impairment of real estate | 600 | 3,100 | $ 4,500
Recurring Basis | Fair Value, Inputs, Level 1 |  |  |
Assets and liabilities recorded at fair value |  |  |
Derivative assets |  | 0 |
Derivative liabilities | 0 |  |
Available-for-sale securities | 0 | 0 |
Recurring Basis | Fair Value, Inputs, Level 2 |  |  |
Assets and liabilities recorded at fair value |  |  |
Derivative assets |  | 18,926 |
Derivative liabilities | 8,395 |  |
Available-for-sale securities | 0 | 0 |
Recurring Basis | Fair Value, Inputs, Level 3 |  |  |
Assets and liabilities recorded at fair value |  |  |
Derivative assets |  | 0 |
Derivative liabilities | 0 |  |
Available-for-sale securities | 28,092 | 25,274 |
Recurring Basis | Fair Value |  |  |
Assets and liabilities recorded at fair value |  |  |
Derivative assets |  | 18,926 |
Derivative liabilities | 8,395 |  |
Available-for-sale securities | $ 28,092 | 25,274 |
Non-recurring Basis |  |  |
Assets and liabilities recorded at fair value |  |  |
Aggregate impairments |  | 1,300 |
Non-recurring Basis | Fair Value, Inputs, Level 1 |  |  |
Assets and liabilities recorded at fair value |  |  |
Impaired land and development |  | 0 |
Non-recurring Basis | Fair Value, Inputs, Level 2 |  |  |
Assets and liabilities recorded at fair value |  |  |
Impaired land and development |  | 0 |
Non-recurring Basis | Fair Value, Inputs, Level 3 |  |  |
Assets and liabilities recorded at fair value |  |  |
Impaired land and development |  | 6,078 |
Non-recurring Basis | Fair Value |  |  |
Assets and liabilities recorded at fair value |  |  |
Impaired land and development |  | $ 6,078 |

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- Definition Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(6)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=124258926&loc=SL82898722-210454 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=124260329&loc=d3e26610-111562 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (aa) -URI http://asc.fasb.org/extlink&oid=123581744&loc=d3e27161-111563 + Details
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