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Fair Values (Schedule of Fair Value Measurement) (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2020 | Jun. 30, 2021
Assets and liabilities recorded at fair value |  |  |
Derivative liabilities |  | $ 19,000 | $ 13,500
Loan receivable held for sale |  | 0 | 62,525
Other investments | [1] | 1,176,560 | 1,275,954
Fair Value |  |  |
Assets and liabilities recorded at fair value |  |  |
Aggregate impairments |  | 1,300 |
Recurring Basis | Fair Value, Inputs, Level 1 |  |  |
Assets and liabilities recorded at fair value |  |  |
Derivative liabilities |  | 0 | 0
Available-for-sale securities |  | 0 | 0
Recurring Basis | Fair Value, Inputs, Level 2 |  |  |
Assets and liabilities recorded at fair value |  |  |
Derivative liabilities |  | 18,926 | 13,481
Available-for-sale securities |  | 0 | 0
Recurring Basis | Fair Value, Inputs, Level 3 |  |  |
Assets and liabilities recorded at fair value |  |  |
Derivative liabilities |  | 0 | 0
Available-for-sale securities |  | 25,274 | 28,074
Recurring Basis | Fair Value |  |  |
Assets and liabilities recorded at fair value |  |  |
Derivative liabilities |  | 18,926 | 13,481
Available-for-sale securities |  | 25,274 | 28,074
Non-recurring Basis | Fair Value, Inputs, Level 1 |  |  |
Assets and liabilities recorded at fair value |  |  |
Other investments |  |  | 0
Impaired land and development |  | 0 |
Non-recurring Basis | Fair Value, Inputs, Level 2 |  |  |
Assets and liabilities recorded at fair value |  |  |
Other investments |  |  | 75,402
Impaired land and development |  | 0 |
Non-recurring Basis | Fair Value, Inputs, Level 3 |  |  |
Assets and liabilities recorded at fair value |  |  |
Other investments |  |  | 0
Impaired land and development |  | 6,078 |
Non-recurring Basis | Fair Value |  |  |
Assets and liabilities recorded at fair value |  |  |
Other investments |  |  | $ 75,402
Impaired land and development |  | $ 6,078 |
[1] | Refer to Note 2 for details on the Company’s consolidated variable interest entities (“VIEs”).

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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=121558606&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=121553693&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=121645371&loc=d3e27161-111563 + Details
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