Disclosure Of Fair Value Of Assets And Liabilities (Schedule Of Valuation Techniques And Significant Unobservable Assumptions) (Details) - Level 3 [Member]
$ in Thousands |
Dec. 31, 2020
USD ($)
|
| Measurement Assumptions, Discount Rates [Member] |
|
| Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
|
| Hotel properties |
10
|
| Measurement Assumptions, Exit Capitalization Rates [Member] |
|
| Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
|
| Hotel properties |
7.5
|
| Measurement Assumptions, Market Rental Rates Per Square Foot [Member] |
|
| Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
|
| Land properties held for sale |
12.00
|
| Minimum [Member] | Measurement Assumptions, Discount Rates [Member] |
|
| Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
|
| Office properties held for sale |
7.5
|
| Minimum [Member] | Measurement Assumptions, Exit Capitalization Rates [Member] |
|
| Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
|
| Office properties held for sale |
7.5
|
| Minimum [Member] | Measurement Assumptions, Market Rental Rates Per Square Foot [Member] |
|
| Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
|
| Office properties held for sale |
27.50
|
| Minimum [Member] | Measurement Assumptions, Market Rates Per Residential Unit [Member] |
|
| Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
|
| Land held for sale, fair value |
$ 32,000
|
| Maximum [Member] | Measurement Assumptions, Discount Rates [Member] |
|
| Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
|
| Office properties held for sale |
10
|
| Maximum [Member] | Measurement Assumptions, Exit Capitalization Rates [Member] |
|
| Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
|
| Office properties held for sale |
9
|
| Maximum [Member] | Measurement Assumptions, Market Rental Rates Per Square Foot [Member] |
|
| Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
|
| Office properties held for sale |
37.00
|
| Maximum [Member] | Measurement Assumptions, Market Rates Per Residential Unit [Member] |
|
| Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
|
| Land held for sale, fair value |
$ 40,000
|