Fair Value Of Instruments (Tables)

3 Months Ended

Mar. 31, 2013

Estimated Fair Value And Carrying Amounts



		As of March 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	$ 546,649	$ 546,649	$ 723,729	$ 723,729
Unsecured term loan (2)	Level 2	747,830	747,830	757,839	757,839
Unsecured senior notes (3)(4)	Level 2	2,530,708	2,341,972	1,907,188	1,738,221
Exchangeable senior debentures (3)	Level 2	442,139	266,400	446,476	266,400
Mortgage loans (3)	Level 2	837,520	779,273	845,125	792,376
		$ 5,104,846	$ 4,682,124	$ 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, mortgage loans and other secured loan 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 $15,948 and $11,779 in the aggregate as of March 31, 2013 and December 31, 2012, respectively.

Digital Realty Trust, L.P. [Member]

Estimated Fair Value And Carrying Amounts



		As of March 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	$ 546,649	$ 546,649	$ 723,729	$ 723,729
Unsecured term loan (2)	Level 2	747,830	747,830	757,839	757,839
Unsecured senior notes (3)(4)	Level 2	2,530,708	2,341,972	1,907,188	1,738,221
Exchangeable senior debentures (3)	Level 2	442,139	266,400	446,476	266,400
Mortgage loans (3)	Level 2	837,520	779,273	845,125	792,376
		$ 5,104,846	$ 4,682,124	$ 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, mortgage loans and other secured loan 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 $15,948 and $11,779 in the aggregate as of March 31, 2013 and December 31, 2012, respectively.

- Definition

Tabular disclosure of the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments, assets, and liabilities. Such certain disclosures about the financial instruments, assets, and liabilities include: (1) the fair value of the required items together with their carrying amounts (as appropriate) and (2) the methodology and assumptions used in developing such estimates of fair value.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

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Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef

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Reference 4: http://www.xbrl.org/2003/role/presentationRef

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-Name Statement of Financial Accounting Standard (FAS)

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 5: http://www.xbrl.org/2003/role/presentationRef

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Reference 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 7: http://www.xbrl.org/2003/role/presentationRef

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 10: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 107

-Paragraph 10

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 11: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 825

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+ Details