Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2016	Aug. 05, 2016
Entity Information [Line Items]
Entity Registrant Name	LEXINGTON REALTY TRUST
Entity Central Index Key	0000910108
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		236,976,820
Document Fiscal Year Focus	2016
Document Fiscal Period Focus	Q2
Document Type	10-Q
Amendment Flag	false
Document Period Ended Date	Jun. 30, 2016
LCIF [Member]
Entity Information [Line Items]
Entity Registrant Name	LEPERCQ CORPORATE INCOME FUND L.P.
Entity Central Index Key	0000790877
Current Fiscal Year End Date	--12-31
Entity Filer Category	Non-accelerated Filer
Entity Common Stock, Shares Outstanding		0
Document Fiscal Year Focus	2016
Document Fiscal Period Focus	Q2
Document Type	10-Q
Amendment Flag	false
Document Period Ended Date	Jun. 30, 2016