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Cash incentives awards granted amount maximum.

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Defined Contribution Plan Maximum Contributions Percentage By Employer

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Percentage Added To Earned Amount Under Plan

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Percentage of Actual Promotes Received Under Compensation Pool

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Percentage of Compensation Pool Over Excess Value Under Plan

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Percentage Of Market Capitalization Provided To Participants Of Plan

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Performance period for measuring fair value of outstanding awards.

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Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Aggregate Grant Date Fair Value

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Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Remaining Contractual Terms

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Share Based Compensation Arrangement By Share Based Payment Award Options Settled In Cash

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Vesting percentage on defined contribution plan.

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Vesting period for acquired plan

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Aggregate number of common shares reserved for future issuance.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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-Section S99
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Describe the conversion features of common stock if such stock is convertible. That is, shares of common stock into which another convertible security was converted, or shares of common stock into which another class of common stock was converted.

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The amount of the cost recognized during the period for defined contribution plans.

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Percentage employer matches of the employee's percentage contribution matched.

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- Definition

Unrecognized cost of unvested share-based compensation awards.

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Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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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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The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

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Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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Net number of share options (or share units) granted during the period.

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Gross number of share options (or share units) granted during the period.

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Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

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Number of options outstanding, including both vested and non-vested options.

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Long-Term Compensation - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Performance period used for fair value assumption	3 years
Stock options outstanding	4,400,000
Stock options exercisable	4,400,000
Stock options outstanding, weighted average exercise price	$ 34.69
Stock options exercisable, weighted average exercise price	$ 34.69
Weighted average life	3 years 1 month 6 days
Aggregate intrinsic value of exercised options	$ 13,700,000	$ 5,800,000	$ 9,600,000
Options granted	0
Employer contribution for every dollar	0.50%
Percentage of employees annual compensation within the statutory compensation limit	6.00%
Vesting percentage on defined contribution plan	100.00%
Vesting period for acquired plan	1 year
Compensation cost related to employees contribution plans	$ 2,500,000	2,200,000	2,100,000
Restricted Stock Units (RSUs) [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Outperformance hurdle, above MSCI US REIT Index	1.00%
Compensation pool as percentage of excess value, if outperformance hurdle is met	3.00%
Cash incentive award maximum	$ 75,000,000
Percentage of equity market capitalization	0.50%
Forfeited awards after seven years	7 years
Compensation cost	$ 34,600,000
Remaining weighted average period	1 year 4 months 24 days
Restricted Operating Partnership Units [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting period	3 years
Amount realized during conversion of prior held shares	609,000
Operating Partnership Units [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Compensation cost	$ 26,600,000
Remaining weighted average period	1 year 6 months
2012 Long Term Incentive Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of common stocks are reserved for issuance	27,200,000
Common stock available for future issuance	21,700,000
Description of conversion rate	Each LTIP Unit counts as one share of common stock
2012 Long Term Incentive Plan [Member] \| Maximum [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares available to be granted for a single participant	1,500,000
Prologis Promote Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Total compensation pool	40.00%
Vesting period	3 years
Total value of awards	$ 4,700,000	11,300,000	5,300,000
Total value of awards, settled in cash		$ 4,200,000	$ 2,700,000
Prologis Promote Plan [Member] \| Restricted Stock Units (RSUs) [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Amount realized during conversion of prior held shares		57,000	69,000
Aggregate fair value		$ 2,400,000	$ 2,600,000
Prologis Promote Plan [Member] \| Limited Partnership Units [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Amount realized during conversion of prior held shares		113,000
Aggregate fair value		$ 4,700,000