Interest and Other Investment (Loss) Income, Net (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Net Investment Income [Line Items]
Decrease (increase) in fair value of marketable securities	$ 0	$ 1,312	$ (4,938)	$ 1,773
Credit losses on loans receivable	(6,108)	0	(13,369)	0
Interest on cash and cash equivalents and restricted cash	1,498	2,626	5,464	4,693
Interest on loans receivable	810	1,635	2,236	3,241
Dividends on marketable securities	0	1,313	0	1,313
Other, net	907	954	1,810	1,865
Interest and other investment income, net	(2,893)	7,840	(8,797)	12,885
PREIT
Net Investment Income [Line Items]
Decrease (increase) in fair value of marketable securities	0	1,313	(4,938)	(14,336)
Lexington Realty Trust
Net Investment Income [Line Items]
Decrease (increase) in fair value of marketable securities	0	0	0	16,068
Other
Net Investment Income [Line Items]
Decrease (increase) in fair value of marketable securities	$ 0	$ (1)	$ 0	$ 41

The aggregate interest and fee income generated by: (1) loans the Entity has positive intent and ability to hold for the foreseeable future, or until maturity or payoff, including commercial and consumer loans, whether domestic or foreign, which may consist of: (a) industrial and agricultural; (b) real estate; and (c) real estate construction loans; (d) trade financing; (e) lease financing; (f) home equity lines-of-credit; (g) automobile and other vehicle loans; and (h) credit card and other revolving-type loans and (2) loans and leases held-for-sale which may include mortgage loans, direct financing, and sales-type leases.

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