Real Estate - Summary of Dispositions (Parenthetical) (Detail) ft² in Millions, $ in Millions	3 Months Ended
	Jun. 30, 2014 USD ($) ft² Property
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain recognized on disposition of investments in real estate	$ 52.5
Equity Method Investment Income Tax Expense	32.4
Deferred tax benefit recognized on disposition of investments in real estate	55.5
Earnings attributable to non controlling interest	$ 61.0
FIBRA Prologis [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of properties purchased | Property	177
Square feet | ft²	29.7
Difference between amount received and noncontrolling interests	$ 34.6
Wholly Owned Portfolio [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Square feet | ft²	12.6
Mexico Fondo Logistico [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Square feet | ft²	7.6
Prologis Mexico Industrial Fund [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Square feet | ft²	9.5