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Debt instrument maturity month and year.

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Exchangeable senior notes outstanding.

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Amount of long-term debt due after one year or the normal operating cycle, if longer, assumed at the acquisition date.

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The value of the financial instrument(s) that the original debt is being converted into in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

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The number of shares issued in exchange for the original debt being converted in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or payments in the period.

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Face (par) amount of debt instrument at time of issuance.

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Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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Maximum contractual interest rate for funds borrowed, under the debt agreement.

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Minimum contractual interest rate for funds borrowed, under the debt agreement.

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- Definition

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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No definition available.

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Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

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The amount of debt premium that was originally recognized at the issuance of the instrument that has yet to be amortized.

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- Definition

Fair value as of the balance sheet date of the embedded derivative or group of embedded derivatives classified as a liability.

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Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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The cash outflow from the repayment of a long-term debt instrument which can be exchanged for a specified amount of another security, typically the entity's common stock, at the option of the issuer or the holder.

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The net change in the difference between the fair value and the carrying value, or in the comparative fair values, of derivative instruments, including options, swaps, futures, and forward contracts, held at each balance sheet date, that was included in earnings for the period.

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Debt - Additional Information (Detail) $ in Thousands, CAD in Millions, ¥ in Billions	3 Months Ended	12 Months Ended
	Mar. 31, 2015 USD ($) shares	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)	Dec. 31, 2015 JPY (¥)	Dec. 31, 2015 CAD	May. 29, 2015 USD ($)	Dec. 31, 2014 JPY (¥)
Debt Instrument [Line Items]
Credit facility maximum borrowing capacity		$ 2,662,000	$ 2,742,000	$ 2,451,000
Notes exchanged	$ 459,800
Number of share issued on debt conversion \| shares	11,900,000
Repayments of convertible debt	$ 200
Stated interest rates ranging, Minimum		0.60%
Stated interest rates ranging, Maximum		0.80%
Debt issued		$ 11,621,000
Exchangeable Senior Notes Outstanding		6,500,000
Carrying Value of Debt		11,626,831	9,336,977
TMK Bonds [Member]
Debt Instrument [Line Items]
Debt issued		191,000	70,700		¥ 23.0			¥ 7.2
KTR Capital Partners and Affiliates [Member]
Debt Instrument [Line Items]
Secured mortgage debt							$ 735,172
Debt Instrument, Unamortized Premiums		39,600
Prologis North American Industrial Fund III [Member]
Debt Instrument [Line Items]
Debt Instrument, Unamortized Premiums			84,200
Exchangeable Senior Notes [Member]
Debt Instrument [Line Items]
Fair value of derivative instruments	43,000		51,300
Unrealized gain (loss) on derivative instrument	$ 8,300		(10,300)	$ (1,200)
Carrying Value of Debt		0	$ 456,373
Term Loan [Member]
Debt Instrument [Line Items]
Carrying Value of Debt		2,100,000
Global Facility [Member]
Debt Instrument [Line Items]
Credit facility maximum borrowing capacity		$ 2,300,000
Debt Instrument maturity date		Jul. 11, 2017
Cross acceleration to other recourse indebtedness		$ 50,000
Revolver [Member]
Debt Instrument [Line Items]
Credit facility maximum borrowing capacity		469,300			56.5
Credit facility current borrowing capacity		373,800			¥ 45.0
Secured Mortgage Debt [Member]
Debt Instrument [Line Items]
Secured mortgage debt		$ 1,000,000
Secured Mortgage Debt [Member] \| KTR Capital Partners and Affiliates [Member]
Debt Instrument [Line Items]
Stated interest rates ranging, Minimum		2.60%
Stated interest rates ranging, Maximum		7.60%
Debt issued		$ 471,900
Secured Mortgage Debt [Member] \| KTR Capital Partners and Affiliates [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Senior note effective interest rate		1.90%			1.90%	1.90%
Debt Instrument maturity date		2016-12
Secured Mortgage Debt [Member] \| KTR Capital Partners and Affiliates [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Senior note effective interest rate		4.00%			4.00%	4.00%
Debt Instrument maturity date		2023-04
Secured Mortgage Debt [Member] \| Prologis North American Industrial Fund III [Member]
Debt Instrument [Line Items]
Stated interest rates ranging, Minimum			6.50%
Stated interest rates ranging, Maximum			5.00%
Debt issued			$ 1,200,000
Secured Mortgage Debt [Member] \| Prologis North American Industrial Fund III [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Senior note effective interest rate			1.90%					1.90%
Debt Instrument maturity date		2016-10
Secured Mortgage Debt [Member] \| Prologis North American Industrial Fund III [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Senior note effective interest rate			3.40%					3.40%
Debt Instrument maturity date		2020-12
Secured Mortgage Debt [Member] \| Canadian Secured Mortgage Debt [Member]
Debt Instrument [Line Items]
Stated interest rates ranging, Minimum		1.70%
Stated interest rates ranging, Maximum		3.70%
Debt issued		$ 140,400				CAD 195.0
Secured Mortgage Debt [Member] \| Canadian Secured Mortgage Debt [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Senior note effective interest rate		2.00%			2.00%	2.00%
Debt Instrument maturity date		2020-07
Secured Mortgage Debt [Member] \| Canadian Secured Mortgage Debt [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Senior note effective interest rate		3.70%			3.70%	3.70%
Debt Instrument maturity date		2025-12