Marketable Securities (Narrative) (Details) - USD ($) $ in Thousands |
3 Months Ended | |||
---|---|---|---|---|
Mar. 12, 2019 |
Mar. 01, 2019 |
Mar. 31, 2019 |
Mar. 31, 2018 |
|
New Accounting Pronouncements or Change in Accounting Principle [Line Items] | ||||
Increase (decrease) in fair value of marketable securities | $ 461 | $ (32,986) | ||
Lexington Realty Trust | ||||
New Accounting Pronouncements or Change in Accounting Principle [Line Items] | ||||
Shares sold (shares) | 18,468,969 | |||
Proceeds from sale of equity method investments | $ 167,698 | |||
Mark-to-market increase in fair value | 16,068 | |||
Increase (decrease) in fair value of marketable securities | 16,068 | (32,875) | ||
PREIT | ||||
New Accounting Pronouncements or Change in Accounting Principle [Line Items] | ||||
Shares issued upon conversion of operating partnership units (shares) | 6,250,000 | |||
Increase (decrease) in fair value of marketable securities | $ (15,649) | $ 0 |