Noncontrolling Interests - Noncontrolling Interest Summary (Parenthetical) (Detail) - USD ($) shares in Thousands, $ in Millions	1 Months Ended	3 Months Ended	12 Months Ended
Mar. 31, 2017	Mar. 31, 2017	Dec. 31, 2016
Noncontrolling Interest [Line Items]
Outstanding limited partnership units, redeemed		40
Business acquisition, common limited partnership units issued		4,100	4,600
Fair value of outstanding limited partnership units	$ 214.3	$ 214.3	$ 241.8
LTIP Units [Member]
Noncontrolling Interest [Line Items]
Number of units outstanding	3,600	3,600	2,200
Class A Common [Member]
Noncontrolling Interest [Line Items]
Units outstanding	8,900	8,900	8,900
Conversion and exchange of units to shares		8,600	8,700
Common Stock [Member]
Noncontrolling Interest [Line Items]
Outstanding limited partnership units	1,800	1,800	1,800
Prologis North American Industrial Fund [Member]
Noncontrolling Interest [Line Items]
Acquisition of partner's interest	$ 710.2
Prologis Brazil Logistics Partners Fund I [Member]
Noncontrolling Interest [Line Items]
Acquisition of partner's interest	$ 79.8
Investments in unconsolidated entities			$ 113.1
Prologis, L.P. [Member] \| Class A Common [Member] \| Limited Partners [Member]
Noncontrolling Interest [Line Items]
Units outstanding	8,894	8,894	8,894
Prologis, L.P. [Member] \| Common [Member] \| Limited Partners [Member]
Noncontrolling Interest [Line Items]
Outstanding limited partnership units, redeemed		600
Units outstanding	6,032	6,032	5,323
Conversion and exchange of units to shares		(572)
Limited partners units redeemed value		$ 15.8

Outstanding common limited partnership units converted into cash or common shares.

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Outstanding common limited partnership units exchangeable into cash or common value.

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Number of non-vested equity instruments other than options outstanding.

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Number of shares of equity interests issued or issuable to acquire entity.

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Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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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 each class of partnership units outstanding at the balance sheet date. Units represent shares of ownership of the general, limited, and preferred partners.

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The number of units converted into shares of each class of partners' capital account. Units represent shares of ownership of the 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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The carrying amount of investments in unconsolidated real estate and other joint ventures not separately presented. This includes direct and indirect investments.

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