Fair Value Of Instruments (Tables)

12 Months Ended

Dec. 31, 2013

Estimated Fair Value And Carrying Amounts

		As of December 31, 2013		As of December 31, 2012
	Categorization under the fair value hierarchy	Estimated Fair Value	Carrying Value	Estimated Fair Value	Carrying Value
Global revolving credit facility (1)	Level 2	$                  724,668	$          724,668	$                  723,729	$          723,729
Unsecured term loan (2)	Level 2	1,020,984	1,020,984	757,839	757,839
Unsecured senior notes (3)(4)	Level 2	2,379,999	2,364,232	1,907,188	1,738,221
Exchangeable senior debentures (3)	Level 2	336,847	266,400	446,476	266,400
Mortgage loans (3)	Level 2	622,580	585,608	845,125	792,376
		$               5,085,078	$       4,961,892	$               4,680,357	$       4,278,565

(1)	The carrying value of our global revolving credit facility approximates estimated fair value, due to the variability of interest rates and the stability of our credit rating.
(2)	The carrying value of our unsecured term loan approximates estimated fair value, due to the variability of interest rates and the stability of our credit rating.

(3) Valuations for our unsecured senior notes and mortgage loans are determined based on the expected future payments discounted at risk-adjusted rates. The 2015 Notes, 2020 Notes, 2021 Notes, 2022 Notes and 2025 Notes and exchangeable senior debentures are valued based on quoted market prices.  

(4) The carrying value of the 2015 Notes, 2020 Notes, 2021 Notes, 2022 Notes and 2025 Notes are net of discount of $15,047 and $11,779 in the aggregate as of December 31, 2013 and December 31, 2012, respectively.

Digital Realty Trust, L.P. [Member]

Estimated Fair Value And Carrying Amounts

		As of December 31, 2013		As of December 31, 2012
	Categorization under the fair value hierarchy	Estimated Fair Value	Carrying Value	Estimated Fair Value	Carrying Value
Global revolving credit facility (1)	Level 2	$                  724,668	$          724,668	$                  723,729	$          723,729
Unsecured term loan (2)	Level 2	1,020,984	1,020,984	757,839	757,839
Unsecured senior notes (3)(4)	Level 2	2,379,999	2,364,232	1,907,188	1,738,221
Exchangeable senior debentures (3)	Level 2	336,847	266,400	446,476	266,400
Mortgage loans (3)	Level 2	622,580	585,608	845,125	792,376
		$               5,085,078	$       4,961,892	$               4,680,357	$       4,278,565

(1)	The carrying value of our global revolving credit facility approximates estimated fair value, due to the variability of interest rates and the stability of our credit rating.
(2)	The carrying value of our unsecured term loan approximates estimated fair value, due to the variability of interest rates and the stability of our credit rating.

(3) Valuations for our unsecured senior notes and mortgage loans are determined based on the expected future payments discounted at risk-adjusted rates. The 2015 Notes, 2020 Notes, 2021 Notes, 2022 Notes and 2025 Notes and exchangeable senior debentures are valued based on quoted market prices.  

(4) The carrying value of the 2015 Notes, 2020 Notes, 2021 Notes, 2022 Notes and 2025 Notes are net of discount of $15,047 and $11,779 in the aggregate as of December 31, 2013 and December 31, 2012, respectively.