Fair Value Measurements - Fair Value Inputs of Long-Lived Assets Held and Used (Details)
|
Sep. 30, 2019
ft²
$ / ft²
|
Dec. 31, 2018
ft²
$ / ft²
|
| Fair Value Estimated Using Comparable Properties | Measurement Input, Price Per Square Foot | Retail |
|
|
| Impaired Long-Lived Assets Held and Used [Line Items] |
|
|
| Assets,measurement input |
|
0
|
| Fair Value Estimated Using Comparable Properties | Measurement Input, Price Per Square Foot | Retail | Minimum |
|
|
| Impaired Long-Lived Assets Held and Used [Line Items] |
|
|
| Assets,measurement input |
34.45
|
|
| Fair Value Estimated Using Comparable Properties | Measurement Input, Price Per Square Foot | Retail | Maximum |
|
|
| Impaired Long-Lived Assets Held and Used [Line Items] |
|
|
| Assets,measurement input |
740.74
|
|
| Fair Value Estimated Using Comparable Properties | Measurement Input, Price Per Square Foot | Retail | Weighted Average |
|
|
| Impaired Long-Lived Assets Held and Used [Line Items] |
|
|
| Assets,measurement input |
76.17
|
0
|
| Fair Value Estimated Using Comparable Properties | Measurement Input, Square Footage | Retail |
|
|
| Impaired Long-Lived Assets Held and Used [Line Items] |
|
|
| Assets,measurement input | ft² |
74,891
|
0
|
| Fair Value Estimated Using Listing Price or Broker Opinion of Value | Measurement Input, Price Per Square Foot | Retail | Minimum |
|
|
| Impaired Long-Lived Assets Held and Used [Line Items] |
|
|
| Assets,measurement input |
30.14
|
185.42
|
| Fair Value Estimated Using Listing Price or Broker Opinion of Value | Measurement Input, Price Per Square Foot | Retail | Maximum |
|
|
| Impaired Long-Lived Assets Held and Used [Line Items] |
|
|
| Assets,measurement input |
286.14
|
638.72
|
| Fair Value Estimated Using Listing Price or Broker Opinion of Value | Measurement Input, Price Per Square Foot | Retail | Weighted Average |
|
|
| Impaired Long-Lived Assets Held and Used [Line Items] |
|
|
| Assets,measurement input |
44.90
|
507.11
|
| Fair Value Estimated Using Listing Price or Broker Opinion of Value | Measurement Input, Price Per Square Foot | Office |
|
|
| Impaired Long-Lived Assets Held and Used [Line Items] |
|
|
| Assets,measurement input |
99.37
|
225.04
|
| Fair Value Estimated Using Listing Price or Broker Opinion of Value | Measurement Input, Price Per Square Foot | Office | Weighted Average |
|
|
| Impaired Long-Lived Assets Held and Used [Line Items] |
|
|
| Assets,measurement input |
99.37
|
225.04
|
| Fair Value Estimated Using Listing Price or Broker Opinion of Value | Measurement Input, Square Footage | Retail |
|
|
| Impaired Long-Lived Assets Held and Used [Line Items] |
|
|
| Assets,measurement input | ft² |
118,858
|
27,302
|
| Fair Value Estimated Using Listing Price or Broker Opinion of Value | Measurement Input, Square Footage | Office |
|
|
| Impaired Long-Lived Assets Held and Used [Line Items] |
|
|
| Assets,measurement input | ft² |
4,310
|
5,999
|