Business Combinations (Tables)

12 Months Ended

Dec. 31, 2011

Business Acquisition [Line Items]

Schedule of consideration transferred for business combination

ProLogis shares and limited partnership units outstanding at June 2, 2011 (60% of total shares of the combined company)		571.4
Total shares of the combined company (for accounting purposes)		952.3
Number of AMB shares to be issued (40% of total shares of the combined company)		380.9
Multiplied by price of ProLogis common share on June 2, 2011	$	15.21
Consideration associated with common shares issued	$	5,794.1
Add consideration associated with share based payment awards.		62.4
Total consideration of the Operating Partnership	$	5,856.5

Schedule of pro forma information for business combinations

(amounts in thousands, except per share amounts)	2011		2010
Total revenues	$	1,981,579	$	1,898,083
Net loss attributable to common shares	$	(70,988)	$	(1,374,283)
Net loss per share attributable to common shares - basic	$	(0.15)	$	(3.24)
Net loss per share attributable to common shares - diluted	$	(0.15)	$	(3.24)

AMB [Member]

Business Acquisition [Line Items]

Schedule of purchase price consideration for business combinations

Investments in real estate properties	$	8,172.8
Investments in and advances to unconsolidated investees		1,620.3
Cash, accounts receivable and other assets		687.8
Debt		(3,646.7)
Accounts payable, accrued expenses and other liabilities		(430.5)
Noncontrolling interests		(547.2)
Total purchase price of the Operating Partnership	$	5,856.5

PEPR [Member]

Business Acquisition [Line Items]

Schedule of purchase price consideration for business combinations

Investments in real estate properties	$	4,453.0
Cash, accounts receivable and other assets		251.8
Debt		(2,240.7)
Accounts payable, accrued expenses and other liabilities		(703.5)
Noncontrolling interests		(133.7)
Total purchase price	$	1,626.9