Related Party Transactions (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Related Party Transaction [Line Items]
Rent revenue	$ 398,065	$ 399,485	$ 392,480
Vorando Realty Trust [Member]
Related Party Transaction [Line Items]
Rent revenue	236	255	255
Rent expense for corporate headquarters	1,176	1,323	1,252
Affiliated Entity [Member]
Related Party Transaction [Line Items]
Contractual obligation	18,000
Due from (to) related party	(7)
LCIF [Member]
Related Party Transaction [Line Items]
Rent revenue	115,403	117,847	109,455
Rent expense for corporate headquarters	286	307	289
General and administration expense	9,767	8,618	7,335
Property operating expenses	764	$ 905	$ 1,004
LCIF [Member] \| General Partner [Member]
Related Party Transaction [Line Items]
Issuance of units (in units)		12,559,130	2,571,757
Issuance of units		$ 112,286	$ 27,981
Redemption of units (in units)			170,193
Redemption of units			$ 1,962
LCIF [Member] \| Vorando Realty Trust [Member]
Related Party Transaction [Line Items]
Rent revenue	236	255	255
LCIF [Member] \| Affiliated Entity [Member]
Related Party Transaction [Line Items]
Due from (to) related party	(7)
LCIF [Member] \| Lexington Realty Trust [Member]
Related Party Transaction [Line Items]
Due from (to) related party	5,967	(3,232)
Unit distributions earned	64,319	58,361	53,728
Interest expense, related party	$ 11,392	$ 12,253	$ 10,282
LCIF [Member] \| Lexington Realty Trust [Member] \| General Partner [Member]
Related Party Transaction [Line Items]
Issuance of units (in units)		12,559,130	2,571,757
Issuance of units		$ 112,286	$ 27,981

Distribution Made to Limited Partner and General Partner, Cash Distributions Earned

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- Definition

Amount of contractual obligation, including but not limited to, long-term debt, capital lease obligations, operating lease obligations, purchase obligations, and other commitments.

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Amount of interest expense incurred on a debt or other obligation to related party.

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The total amount of revenue recognized for the period from operating leases, including minimum lease revenue, contingent revenue, percentage revenue and sublease revenue.

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Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income.

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Monetary value of the issuance of new units of limited partnership interest in a private placement.

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Total change in each class of partners' capital accounts during the year due to redemptions and adjustments to redemption value. All partners include general, limited and preferred partners.

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The number of units redeemed during the year of each class of partners' capital account. Units represent shares of ownership of the general, limited, and preferred partners.

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Total units issued during the year due to the sale of units. All partners include general, limited and preferred partners.

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Receivables to be collected from (obligations owed to) related parties, net as of the balance sheet date where one party can exercise control or significant influence over another party; including affiliates, owners or officers and their immediate families, pension trusts, and so forth.

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Expenses recognized resulting from transactions (excluding transactions that are eliminated in consolidated or combined financial statements) with related party.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount of selling, general and administrative expenses resulting from transactions, excluding transactions that are eliminated in consolidated or combined financial statements, with related party.

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