Disclosure Of Fair Value Of Assets And Liabilities (Schedule Of Valuation Techniques And Significant Unobservable Inputs) (Details) - Level 3 [Member]
$ in Thousands |
Mar. 31, 2020
USD ($)
|
| Minimum [Member] | Measurement Input, Discount Rate [Member] |
|
| Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
|
| Office properties held for sale |
7.5
|
| Minimum [Member] | Measurement Input, Cap Rate [Member] |
|
| Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
|
| Office properties held for sale |
7.5
|
| Minimum [Member] | Measurement Input, Market Rental Rate Per Square Foot [Member] |
|
| Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
|
| Office properties held for sale |
26.00
|
| Minimum [Member] | Measurement Input, Market Rates Per Residential Unit [Member] |
|
| Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
|
| Land held for sale, fair value |
$ 26,500
|
| Minimum [Member] | Measurement Input, Market Rates Per Square Foot [Member] |
|
| Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
|
| Land properties held for sale |
15.00
|
| Maximum [Member] | Measurement Input, Discount Rate [Member] |
|
| Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
|
| Office properties held for sale |
9.6
|
| Maximum [Member] | Measurement Input, Cap Rate [Member] |
|
| Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
|
| Office properties held for sale |
9
|
| Maximum [Member] | Measurement Input, Market Rental Rate Per Square Foot [Member] |
|
| Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
|
| Office properties held for sale |
50.00
|
| Maximum [Member] | Measurement Input, Market Rates Per Residential Unit [Member] |
|
| Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
|
| Land held for sale, fair value |
$ 35,000
|
| Maximum [Member] | Measurement Input, Market Rates Per Square Foot [Member] |
|
| Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
|
| Land properties held for sale |
25.00
|