Limited Partners' Capital Account, Units Retired

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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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Net number of non-option equity instruments granted to participants.

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The number of shares issued during the period upon the conversion of units. An example of a convertible unit is an umbrella partnership real estate investment trust unit (UPREIT unit).

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Value of stock issued during the period upon the conversion of units. An example of a convertible unit is an umbrella partnership real estate investment trust unit (UPREIT unit).

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Stockholders’ Equity of the Company and Partners' Capital of the Operating Partnership - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2018	Mar. 31, 2018	Jun. 30, 2019	Jun. 30, 2018
Class of Stock [Line Items]
Restricted stock/Unit awards and LTIP Unit Awards issued					297,216
Conversion of Limited Partner Units to Common Stock / General Partner Units			$ 0	$ 0	$ 0	$ 0
Limited Partners' Capital Account, Units Retired						33,333
Common Stock Dividends and Unit Distributions	$ 29,864	$ 29,922	28,209	27,107
Common Stock / Operating Partnership Units
Class of Stock [Line Items]
Conversion of Limited Partner Units to Common Stock / General Partner Units, Shares						1,019,677
Conversion of Limited Partner Units to Common Stock / General Partner Units						$ 12,327
Common Stock Dividends and Unit Distributions					59,786
First Industrial, L.P.
Class of Stock [Line Items]
Conversion of Limited Partner Units to Common Stock / General Partner Units			0	0	0	0
Noncontrolling Interest
Class of Stock [Line Items]
Conversion of Limited Partner Units to Common Stock / General Partner Units			(7,318)	(5,009)	0	(12,327)
Common Stock Dividends and Unit Distributions	$ 652	$ 664	$ 643	$ 775	$ 1,316	$ 1,418