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Long-Term Compensation - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended	12 Months Ended
	Jan. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock options outstanding		100,000
Stock options exercisable		100,000
Stock options outstanding, weighted average exercise price		$ 30.85
Stock options exercisable, weighted average exercise price		$ 30.85
Weighted average life		10 months 24 days
Aggregate intrinsic value of exercised options		$ 11,800	$ 13,800	$ 28,600
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		$ 3,000	2,900	2,800
Subsequent Events [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Employer contribution for every dollar	0.50%
Percentage of employees annual compensation within the statutory compensation limit	12.00%
Restricted Stock Units (RSUs) [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Remaining compensation cost weighted average period		1 year 3 months 18 days
Grant date fair value of stock awards granted			46,600	38,500
Aggregate fair value			35,700	32,900
Compensation cost		$ 46,000
Long Term Incentive Plan Units [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Grant date fair value of stock awards granted		53,200	82,600
Aggregate fair value		$ 28,300	41,200
LTIP Units [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Remaining compensation cost weighted average period		1 year 4 months 24 days
Compensation cost		$ 101,200
Maximum [Member] \| Restricted Stock Units (RSUs) [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting period		4 years
Minimum [Member] \| Restricted Stock Units (RSUs) [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting period		3 years
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		14,900,000
Description of conversion rate		Each LTIP Unit counts as one share of common
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 Out-Performance Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Performance Period		3 years
Outperformance hurdle, above MSCI U.S. REIT Index		1.00%
Performance pool as percentage of excess value, if outperformance hurdle is met		3.00%
Forfeited awards after seven years		7 years
Initial performance period		3 years
Total remaining compensation cost related to the POP		$ 39,600
Remaining compensation cost weighted average period		3 years 2 months 12 days
Aggregate fair value		$ 21,200	$ 23,300	$ 20,400
Prologis Out-Performance Plan [Member] \| 2016 - 2018 Performance Period [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Cash incentive award maximum		75,000
Prologis Out-Performance Plan [Member] \| 2017 - 2019 Performance Period [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Cash incentive award maximum		$ 75,000
Prologis Out-Performance Plan [Member] \| 2018 – 2020 and Thereafter Performance Periods [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Initial performance period		3 years
Holding period		3 years
Prologis Out-Performance Plan [Member] \| 2018 – 2020 and Thereafter Performance Periods [Member] \| Tranche 1 [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting rights, percentage		20.00%
Prologis Out-Performance Plan [Member] \| 2018 – 2020 and Thereafter Performance Periods [Member] \| Tranche 2 (After Seven Year Cliff) [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting period		7 years
Vesting rights, percentage		80.00%
Prologis Out-Performance Plan [Member] \| Maximum [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting period		10 years
Percentage of equity market capitalization		0.50%
Prologis Out-Performance Plan [Member] \| Maximum [Member] \| 2018 – 2020 and Thereafter Performance Periods [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Cash incentive award maximum		$ 100,000
Prologis Out-Performance Plan [Member] \| Minimum [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting period		3 years
Prologis Promote Plan [Member] \| Maximum [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Total compensation pool		40.00%