Digital Realty Trust 10-Q 12 May 14 2014 Q1 Quarterly report Financial data

Document_And_Entity_Informatio

Document And Entity Information	3 Months Ended
	Mar. 31, 2014	6-May-14
Document Type	'10-Q	'
Document Period End Date	31-Mar-14	'
Document Fiscal Year Focus	'2014	'
Document Fiscal Period Focus	'Q1	'
Amendment Flag	'false	'
Entity Registrant Name	'Digital Realty Trust, Inc.	'
Entity Central Index Key	'0001297996	'
Current Fiscal Year End Date	'--12-31	'
Entity Filer Category	'Large Accelerated Filer	'
Entity Common Stock, Shares Outstanding	'	135,344,816
Digital Realty Trust, L.P. [Member]	'	'
Document Period End Date	31-Mar-14	'
Document Fiscal Year Focus	'2014	'
Document Fiscal Period Focus	'Q1	'
Entity Registrant Name	'Digital Realty Trust, L.P.	'
Entity Central Index Key	'0001494877	'
Current Fiscal Year End Date	'--12-31	'
Entity Filer Category	'Non-accelerated Filer	'

Condensed_Consolidated_Balance

Condensed Consolidated Balance Sheets (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Properties:	'	'
Land	$685,640	$693,791
Acquired ground leases	14,680	14,618
Buildings and improvements	8,834,693	8,680,677
Tenant improvements	490,697	490,492
Total investments in properties	10,025,710	9,879,578
Accumulated depreciation and amortization	-1,665,421	-1,565,996
Net investments in properties	8,360,289	8,313,582
Investment in unconsolidated joint ventures	81,411	70,504
Net investments in real estate	8,441,700	8,384,086
Cash and cash equivalents	70,242	56,808
Accounts and other receivables, net of allowance for doubtful accounts of $7,156 and $5,576 as of March 31, 2014 and December 31, 2013, respectively	181,433	181,163
Deferred rent	415,515	393,504
Acquired above-market leases, net	49,521	52,264
Acquired in-place lease value and deferred leasing costs, net	479,940	489,456
Deferred financing costs, net	34,295	36,475
Restricted cash	42,842	40,362
Assets held for sale	25,070	'
Other assets	64,836	51,627
Total assets	9,805,394	9,685,745
LIABILITIES AND EQUITY/CAPITAL	'	'
Line of credit	1,026,891	1,020,984
Unsecured senior notes, net of discount	2,368,848	2,364,232
Exchangeable senior debentures	266,400	266,400
Mortgage loans, net of premiums	554,742	585,608
Accounts payable and other accrued liabilities	614,645	662,687
Accrued dividends and distributions	'	102,509
Acquired below-market leases, net	123,152	130,269
Security deposits and prepaid rents	180,886	181,876
Liabilities associated with assets held for sale	3,610	'
Total liabilities	5,929,674	6,039,233
Preferred Stock: $0.01 par value per share, 70,000,000 shares authorized:	'	'
Common Stock: $0.01 par value, 215,000,000 shares authorized, 128,606,462 and 128,455,350 shares issued and outstanding as of March 31, 2014 and December 31, 2013, respectively	1,279	1,279
Additional paid-in capital	3,689,098	3,688,937
Accumulated dividends in excess of earnings	-857,779	-785,222
Accumulated other comprehensive income, net	13,947	10,691
Total stockholders' equity	3,831,233	3,610,516
Noncontrolling Interests:	'	'
Noncontrolling interests in operating partnership	37,406	29,027
Noncontrolling interests in consolidated joint ventures	7,081	6,969
Total noncontrolling interests	44,487	35,996
Total equity	3,875,720	3,646,512
Total liabilities and equity/capital	9,805,394	9,685,745
Digital Realty Trust, L.P. [Member]	'	'
Properties:	'	'
Land	685,640	693,791
Acquired ground leases	14,680	14,618
Buildings and improvements	8,834,693	8,680,677
Tenant improvements	490,697	490,492
Total investments in properties	10,025,710	9,879,578
Accumulated depreciation and amortization	-1,665,421	-1,565,996
Net investments in properties	8,360,289	8,313,582
Investment in unconsolidated joint ventures	81,411	70,504
Net investments in real estate	8,441,700	8,384,086
Cash and cash equivalents	70,242	56,808
Accounts and other receivables, net of allowance for doubtful accounts of $7,156 and $5,576 as of March 31, 2014 and December 31, 2013, respectively	181,433	181,163
Deferred rent	415,515	393,504
Acquired above-market leases, net	49,521	52,264
Acquired in-place lease value and deferred leasing costs, net	479,940	489,456
Deferred financing costs, net	34,295	36,475
Restricted cash	42,842	40,362
Assets held for sale	25,070	'
Other assets	64,836	51,627
Total assets	9,805,394	9,685,745
LIABILITIES AND EQUITY/CAPITAL	'	'
Unsecured senior notes, net of discount	2,368,848	2,364,232
Exchangeable senior debentures	266,400	266,400
Mortgage loans, net of premiums	554,742	585,608
Accounts payable and other accrued liabilities	614,645	662,687
Accrued dividends and distributions	'	102,509
Acquired below-market leases, net	123,152	130,269
Security deposits and prepaid rents	180,886	181,876
Liabilities associated with assets held for sale	3,610	'
Total liabilities	5,929,674	6,039,233
Preferred Stock: $0.01 par value per share, 70,000,000 shares authorized:	'	'
128,606,462 and 128,455,350 units issued and outstanding as of March 31, 2014 and December 31, 2013, respectively	2,832,598	2,904,994
Limited partners, 1,491,814 and 1,491,814 common units, 1,236,428 and 1,077,838 profits interest units and 397,369 and 397,369 class C units outstanding as of March 31, 2014 and December 31, 2013, respectively	39,574	31,261
Accumulated other comprehensive income, net	11,779	8,457
Total partners' capital	3,868,639	3,639,543
Noncontrolling Interests:	'	'
Noncontrolling interests in consolidated joint ventures	7,081	6,969
Total capital	3,875,720	3,646,512
Total liabilities and equity/capital	9,805,394	9,685,745
Series E Cumulative Convertible Preferred Stock/Units [Member]	'	'
Preferred Stock: $0.01 par value per share, 70,000,000 shares authorized:	'	'
Preferred Stock	277,172	277,172
Series E Cumulative Convertible Preferred Stock/Units [Member] | Digital Realty Trust, L.P. [Member]	'	'
Preferred Stock: $0.01 par value per share, 70,000,000 shares authorized:	'	'
Preferred Stock	277,172	277,172
Series F Cumulative Convertible Preferred Stock/Units [Member]	'	'
Preferred Stock: $0.01 par value per share, 70,000,000 shares authorized:	'	'
Preferred Stock	176,191	176,191
Series F Cumulative Convertible Preferred Stock/Units [Member] | Digital Realty Trust, L.P. [Member]	'	'
Preferred Stock: $0.01 par value per share, 70,000,000 shares authorized:	'	'
Preferred Stock	176,191	176,191
Series G Cumulative Convertible Preferred Stock/Units [Member]	'	'
Preferred Stock: $0.01 par value per share, 70,000,000 shares authorized:	'	'
Preferred Stock	241,468	241,468
Series G Cumulative Convertible Preferred Stock/Units [Member] | Digital Realty Trust, L.P. [Member]	'	'
Preferred Stock: $0.01 par value per share, 70,000,000 shares authorized:	'	'
Preferred Stock	241,468	241,468
Series H Cumulative Convertible Preferred Stock/Units [Member]	'	'
Preferred Stock: $0.01 par value per share, 70,000,000 shares authorized:	'	'
Preferred Stock	289,857	'
Series H Cumulative Convertible Preferred Stock/Units [Member] | Digital Realty Trust, L.P. [Member]	'	'
Preferred Stock: $0.01 par value per share, 70,000,000 shares authorized:	'	'
Preferred Stock	289,857	'
Global Revolving Credit Facility [Member] | Digital Realty Trust, L.P. [Member]	'	'
LIABILITIES AND EQUITY/CAPITAL	'	'
Line of credit	790,500	724,668
Unsecured Term Loan [Member]	'	'
LIABILITIES AND EQUITY/CAPITAL	'	'
Line of credit	790,500	724,668
Unsecured Term Loan [Member] | Digital Realty Trust, L.P. [Member]	'	'
LIABILITIES AND EQUITY/CAPITAL	'	'
Line of credit	$1,026,891	$1,020,984

Condensed_Consolidated_Balance1

Condensed Consolidated Balance Sheets (Parenthetical) (USD $)	3 Months Ended	12 Months Ended
	Mar. 31, 2014	Dec. 31, 2013
Accounts and other receivables, allowance for doubtful accounts	$7,156,000	$5,576,000
Below market leases, accumulated amortization	167,213,000	161,369,000
Preferred Stock, par value	$0.01	$0.01
Preferred Stock, authorized	70,000,000	70,000,000
Common Stock, par value	$0.01	$0.01
Common Stock, authorized	215,000,000	215,000,000
Common Stock, shares issued	128,606,462	128,455,350
Common Stock, shares outstanding	128,606,462	128,455,350
Acquired Above-Market Lease Value [Member]	'	'
Accumulated amortization	83,543,000	80,486,000
Series E Cumulative Convertible Preferred Stock/Units [Member]	'	'
Preferred Stock, dividend rate	7.00%	7.00%
Preferred Stock, liquidation preference value	287,500	287,500
Preferred Stock, liquidation preference per share/unit	$25	$25
Preferred Stock, issued	11,500,000	11,500,000
Preferred Stock, outstanding	11,500,000	11,500,000
Series F Cumulative Convertible Preferred Stock/Units [Member]	'	'
Preferred Stock, dividend rate	6.63%	6.63%
Preferred Stock, liquidation preference value	182,500	182,500
Preferred Stock, liquidation preference per share/unit	$25	$25
Preferred Stock, issued	7,300,000	7,300,000
Preferred Stock, outstanding	7,300,000	7,300,000
Series G Cumulative Convertible Preferred Stock/Units [Member]	'	'
Preferred Stock, dividend rate	5.88%	5.88%
Preferred Stock, liquidation preference value	250,000	250,000
Preferred Stock, liquidation preference per share/unit	$25	$25
Preferred Stock, issued	10,000,000	10,000,000
Preferred Stock, outstanding	10,000,000	10,000,000
Series H Cumulative Convertible Preferred Stock/Units [Member]	'	'
Preferred Stock, dividend rate	7.38%	7.38%
Preferred Stock, liquidation preference value	300,000	0
Preferred Stock, liquidation preference per share/unit	$25	$25
Preferred Stock, issued	12,000,000	0
Preferred Stock, outstanding	12,000,000	0
Digital Realty Trust, L.P. [Member]	'	'
Accounts and other receivables, allowance for doubtful accounts	7,156,000	5,576,000
Common Units, issued	128,606,462	128,455,350
Common Units, outstanding	128,606,462	128,455,350
Limited Partners, common units	1,491,814	1,491,814
Limited Partners, profits interest units	1,236,428	1,077,838
Limited Partners, Class C units outstanding	397,369	397,369
Digital Realty Trust, L.P. [Member] | Series E Cumulative Convertible Preferred Stock/Units [Member]	'	'
Preferred Stock, dividend rate	7.00%	7.00%
Preferred Stock, liquidation preference value	287,500	287,500
Preferred Stock, liquidation preference per share/unit	$25	$25
Preferred Units, issued	11,500,000	11,500,000
Preferred Units, outstanding	11,500,000	11,500,000
Digital Realty Trust, L.P. [Member] | Series F Cumulative Convertible Preferred Stock/Units [Member]	'	'
Preferred Stock, dividend rate	6.63%	6.63%
Preferred Stock, liquidation preference value	182,500	182,500
Preferred Stock, liquidation preference per share/unit	$25	$25
Preferred Units, issued	7,300,000	7,300,000
Preferred Units, outstanding	7,300,000	7,300,000
Digital Realty Trust, L.P. [Member] | Series G Cumulative Convertible Preferred Stock/Units [Member]	'	'
Preferred Stock, dividend rate	5.88%	5.88%
Preferred Stock, liquidation preference value	250,000	250,000
Preferred Stock, liquidation preference per share/unit	$25	$25
Preferred Units, issued	10,000,000	10,000,000
Preferred Units, outstanding	10,000,000	10,000,000
Digital Realty Trust, L.P. [Member] | Series H Cumulative Convertible Preferred Stock/Units [Member]	'	'
Preferred Stock, dividend rate	7.38%	7.38%
Preferred Stock, liquidation preference value	$300,000	$0
Preferred Stock, liquidation preference per share/unit	$25	$25
Preferred Stock, issued	14,600,000	'
Preferred Units, issued	12,000,000	0
Preferred Units, outstanding	12,000,000	0

Condensed_Consolidated_Income_

Condensed Consolidated Income Statements (USD $)	3 Months Ended
In Thousands, except Share data, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Operating Revenues:	'	'
Rental	$305,786	$281,399
Tenant reimbursements	83,621	75,917
Fee income	1,183	806
Other	'	248
Total operating revenues	390,590	358,370
Operating Expenses:	'	'
Rental property operating	117,896	105,480
Property taxes	22,125	21,042
Insurance	2,422	2,205
Construction management	164	384
Change in fair value of contingent consideration	-3,403	1,300
Depreciation and amortization	130,620	111,623
General and administrative	30,678	15,951
Transactions	81	1,763
Other	'	36
Total operating expenses	300,583	259,784
Operating income	90,007	98,586
Other Income (Expenses):	'	'
Equity in earnings of unconsolidated joint ventures	2,581	2,335
Gain on contribution of property to unconsolidated joint venture	1,906	'
Interest and other income	1,727	41
Interest expense	-47,374	-48,078
Tax expense	-1,838	-1,203
Loss from early extinguishment of debt	-292	'
Net income	46,717	51,681
Net (income) loss attributable to noncontrolling interests in consolidated joint ventures	-805	-970
Net income attributable to Digital Realty Trust, Inc./Digital Realty Trust, L.P.	45,912	50,711
Preferred stock dividends/Preferred units distributions	-11,726	-8,054
Net income available to common stockholders/unitholders	34,186	42,657
Net income per share/unit available to common stockholders/unitholders:	'	'
Basic	$0.27	$0.34
Diluted	$0.26	$0.34
Weighted average common shares/units outstanding:	'	'
Basic	128,535,995	126,445,285
Diluted	129,136,961	126,738,339
Digital Realty Trust, L.P. [Member]	'	'
Operating Revenues:	'	'
Rental	305,786	281,399
Tenant reimbursements	83,621	75,917
Fee income	1,183	806
Other	'	248
Total operating revenues	390,590	358,370
Operating Expenses:	'	'
Rental property operating	117,896	105,480
Property taxes	22,125	21,042
Insurance	2,422	2,205
Construction management	164	384
Change in fair value of contingent consideration	-3,403	1,300
Depreciation and amortization	130,620	111,623
General and administrative	30,678	15,951
Transactions	81	1,763
Other	'	36
Total operating expenses	300,583	259,784
Operating income	90,007	98,586
Other Income (Expenses):	'	'
Equity in earnings of unconsolidated joint ventures	2,581	2,335
Gain on contribution of property to unconsolidated joint venture	1,906	'
Interest and other income	1,727	41
Interest expense	-47,374	-48,078
Tax expense	-1,838	-1,203
Loss from early extinguishment of debt	-292	'
Net income	46,717	51,681
Net (income) loss attributable to noncontrolling interests in consolidated joint ventures	-112	-146
Net income attributable to Digital Realty Trust, Inc./Digital Realty Trust, L.P.	46,605	51,535
Preferred stock dividends/Preferred units distributions	-11,726	-8,054
Net income available to common stockholders/unitholders	$34,879	$43,481
Net income per share/unit available to common stockholders/unitholders:	'	'
Basic	$0.27	$0.34
Diluted	$0.26	$0.34
Weighted average common shares/units outstanding:	'	'
Basic	131,142,664	128,888,041
Diluted	131,743,630	129,181,095

Condensed_Consolidated_Stateme

Condensed Consolidated Statements Of Comprehensive Income (Loss) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Net income	$46,717	$51,681
Other comprehensive income (loss):	'	'
Foreign currency translation adjustments	3,819	-63,063
Decrease in fair value of interest rate swaps	-1,343	-124
Reclassification to interest expense from interest rate swaps	846	1,741
Comprehensive income (loss)	50,039	-9,765
Comprehensive (income) loss attributable to noncontrolling interests	-871	194
Comprehensive income (loss) attributable to Digital Realty Trust, Inc.	49,168	-9,571
Digital Realty Trust, L.P. [Member]	'	'
Net income	46,717	51,681
Other comprehensive income (loss):	'	'
Foreign currency translation adjustments	3,819	-63,063
Decrease in fair value of interest rate swaps	-1,343	-124
Reclassification to interest expense from interest rate swaps	846	1,741
Comprehensive income (loss)	$50,039	($9,765)

Condensed_Consolidated_Stateme1

Condensed Consolidated Statements Of Equity (USD $)	Total Stockholders' Equity [Member]	Preferred Stock [Member]	Common Stock [Member]	Additional Paid-In Capital [Member]	Accumulated Dividends In Excess Of Earnings [Member]	Accumulated Other Comprehensive Income, Net [Member]	Noncontrolling Interests In Operating Partnership [Member]	Noncontrolling Interests In Consolidated Joint Ventures [Member]	Total Noncontrolling Interests [Member]	Total
In Thousands, except Share data
Balance at Dec. 31, 2013	$3,610,516	$694,831	$1,279	$3,688,937	($785,222)	$10,691	$29,027	$6,969	$35,996	$3,646,512
Shares, Outstanding, Beginning Balance at Dec. 31, 2013	'	'	128,455,350	'	'	'	'	'	'	'
Conversion of units to common stock	51	'	'	51	'	'	-51	'	-51	'
Conversion of units to common stock (shares)	'	'	4,438	'	'	'	'	'	'	'
Issuance of unvested restricted stock, net of forfeitures (shares)	'	'	145,757	'	'	'	'	'	'	'
Common stock offering costs	-100	'	'	-100	'	'	'	'	'	-100
Exercise of stock options	38	'	'	38	'	'	'	'	'	38
Exercise of stock options (shares)	'	'	917	'	'	'	'	'	'	917
Issuance of series H preferred stock, net of offering costs	289,857	289,857	'	'	'	'	'	'	'	289,857
Amortization of unearned compensation regarding share-based awards	10,478	'	'	10,478	'	'	'	'	'	10,478
Reclassification of vested share based awards	-10,306	'	'	-10,306	'	'	10,306	'	10,306	'
Dividends declared on preferred stock	-11,726	'	'	'	-11,726	'	'	'	'	-11,726
Dividends and distributions on common stock and common and incentive units	-106,743	'	'	'	-106,743	'	-2,635	'	-2,635	-109,378
Net income	45,912	'	'	'	45,912	'	693	112	805	46,717
Other comprehensive income (loss) - foreign currency translation adjustments	3,743	'	'	'	'	3,743	76	'	76	3,819
Other comprehensive income (loss) - fair value of interest rate swaps	-1,316	'	'	'	'	-1,316	-27	'	-27	-1,343
Other comprehensive income - reclassification of accumulated other comprehensive loss to interest expense	829	'	'	'	'	829	17	'	17	846
Balance at Mar. 31, 2014	$3,831,233	$984,688	$1,279	$3,689,098	($857,779)	$13,947	$37,406	$7,081	$44,487	$3,875,720
Shares, Outstanding, Ending Balance at Mar. 31, 2014	'	'	128,606,462	'	'	'	'	'	'	'

Condensed_Consolidated_Stateme2

Condensed Consolidated Statements Of Capital (USD $)	3 Months Ended
In Thousands, except Share data, unless otherwise specified	Mar. 31, 2014
Balance (units)	128,455,350
Conversion of limited partner common units to general partner common units	$51
Net proceeds from issuance of series H preferred units	289,857
Amortization of unearned compensation regarding share-based awards	10,478
Net income	46,717
Other comprehensive income (loss) - foreign currency translation adjustments	3,819
Other comprehensive income (loss) - fair value of interest rate swaps	-1,343
Other comprehensive income - reclassification of accumulated other comprehensive loss to interest expense	846
Balance (units)	128,606,462
Digital Realty Trust, L.P. [Member]	'
Balance	3,646,512
Common stock offering costs	-100
Issuance of common units in connection with the exercise of stock options	38
Net proceeds from issuance of series H preferred units	289,857
Amortization of unearned compensation regarding share-based awards	10,478
Distributions	-121,104
Net income	46,717
Other comprehensive income (loss) - foreign currency translation adjustments	3,819
Other comprehensive income (loss) - fair value of interest rate swaps	-1,343
Other comprehensive income - reclassification of accumulated other comprehensive loss to interest expense	846
Balance	3,875,720
Accumulated Other Comprehensive Income, Net [Member] | Digital Realty Trust, L.P. [Member]	'
Balance	8,457
Other comprehensive income (loss) - foreign currency translation adjustments	3,819
Other comprehensive income (loss) - fair value of interest rate swaps	-1,343
Other comprehensive income - reclassification of accumulated other comprehensive loss to interest expense	846
Balance	11,779
Noncontrolling Interests In Consolidated Joint Ventures [Member] | Digital Realty Trust, L.P. [Member]	'
Balance	6,969
Net income	112
Balance	7,081
General Partner [Member] | Preferred Units [Member] | Digital Realty Trust, L.P. [Member]	'
Balance	694,831
Balance (units)	28,800,000
Net proceeds from issuance of series H preferred units	289,857
Net proceeds from issuance of series H preferred units (units)	12,000,000
Distributions	-11,726
Net income	11,726
Balance	984,688
Balance (units)	40,800,000
General Partner [Member] | Common Units [Member] | Digital Realty Trust, L.P. [Member]	'
Balance	2,904,994
Balance (units)	128,455,350
Conversion of limited partner common units to general partner common units	51
Conversion of limited partner common units to general partner common units (units)	4,438
Issuance of unvested restricted common units, net of forfeitures (units)	145,757
Common stock offering costs	-100
Issuance of common units in connection with the exercise of stock options	38
Issuance of common units in connection with the exercise of stock options (units)	917
Amortization of unearned compensation regarding share-based awards	10,478
Reclassification of vested share-based awards	-10,306
Distributions	-106,743
Net income	34,186
Balance	2,832,598
Balance (units)	128,606,462
Limited Partner [Member] | Common Units [Member] | Digital Realty Trust, L.P. [Member]	'
Balance	31,261
Balance (units)	2,967,021
Conversion of limited partner common units to general partner common units	-51
Conversion of limited partner common units to general partner common units (units)	-4,438
Issuance of common units, net of forfeitures (units)	163,028
Reclassification of vested share-based awards	10,306
Distributions	-2,635
Net income	693
Balance	$39,574
Balance (units)	3,125,611

Condensed_Consolidated_Stateme3

Condensed Consolidated Statements Of Cash Flows (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Cash flows from operating activities:	'	'
Net income	$46,717	$51,681
Adjustments to reconcile net income to net cash provided by operating activities:	'	'
Gain on contribution of investment property to unconsolidated joint venture	-1,906	'
Equity in earnings of unconsolidated joint ventures	-2,581	-2,335
Change in fair value of accrued contingent consideration	-3,403	1,300
Distributions from unconsolidated joint ventures	2,214	1,625
Write-off of net assets due to early lease terminations	'	-36
Depreciation and amortization of buildings and improvements, tenant improvements and acquired ground leases	111,142	93,286
Amortization of share-based unearned compensation	8,985	2,887
Allowance for doubtful accounts	1,580	1,100
Amortization of deferred financing costs	2,085	2,431
Loss on early extinguishment of debt	292	'
Amortization of debt discount/premium	385	160
Amortization of acquired-in place lease value and deferred leasing costs	19,478	18,338
Amortization of acquired above-market leases and acquired below-market leases, net	-2,788	-3,045
Changes in assets and liabilities:	'	'
Restricted cash	-1,589	-62
Accounts and other receivables	2,129	-15,584
Deferred rent	-21,335	-21,249
Deferred leasing costs	-6,798	-4,922
Other assets	-14,227	-10,858
Accounts payable and other accrued liabilities	-26,051	-28,858
Security deposits and prepaid rents	2,082	3,182
Net cash provided by operating activities	116,411	89,041
Cash flows from investing activities:	'	'
Acquisitions of real estate	'	-77,935
Proceeds from contribution of investment property to unconsolidated joint venture	11,408	'
Investment in unconsolidated joint ventures	-10,564	-5,647
Investment in equity securities	-5	-12,549
Deposits paid for acquisitions of real estate	'	-250
Receipt of value added tax refund	425	1,990
Refundable value added tax paid	-2,289	-1,914
Change in restricted cash	-814	-359
Improvements to and advances for investments in real estate	-224,118	-258,731
Improvement advances to tenants	-2,499	-1,010
Collection of advances from tenants for improvements	912	767
Net cash used in investing activities	-227,544	-355,638
Cash flows from financing activities:	'	'
Borrowings on revolving credit facility	433,297	492,643
Repayments on revolving credit facility	-371,351	-657,095
Borrowings on 4.250% unsecured senior notes due 2025	'	630,026
Principal payments on mortgage loans	-3,343	-3,896
Change in restricted cash	-68	76
Payment of loan fees and costs	-150	-5,272
Capital contributions received from noncontrolling interests in consolidated joint ventures	'	45
Gross proceeds from the issuance of preferred stock	300,000	'
Common stock offering costs paid	-100	-95
Preferred stock offering costs paid	-10,143	'
Proceeds from exercise of stock options	38	8
Payment of dividends/distributions to preferred stockholders/unitholders	-11,726	-8,054
Payment of dividends/distributions to common stockholders/unitholders and distributions to noncontrolling interests in operating partnership	-211,887	-195,940
Net cash provided by financing activities	124,567	252,446
Net increase in cash and cash equivalents	13,434	-14,151
Cash and cash equivalents at beginning of period	56,808	56,281
Cash and cash equivalents at end of period	70,242	42,130
Supplemental disclosure of cash flow information:	'	'
Cash paid for interest, including amounts capitalized	67,824	56,163
Cash paid for income taxes	863	60
Supplementary disclosure of noncash investing and financing activities:	'	'
Change in net assets related to foreign currency translation adjustments	3,819	-63,063
Increase in accounts payable and other accrued liabilities related to change in fair value of interest rate swaps	-1,343	-124
Noncontrolling interests in operating partnership redeemed for or converted to shares of common stock	51	234
Preferred stock/units converted to shares of common stock/units	'	119,348
Accrual for additions to investments in real estate and tenant improvement advances included in accounts payable and accrued expenses	197,376	244,284
Additional accrual of contingent purchase price for investments in real estate	'	7,130
Allocation of purchase price of real estate/investment in partnership to:	'	'
Investments in real estate	'	69,149
Acquired above-market leases	'	12
Acquired below-market leases	'	-2,087
Acquired-in place lease value and deferred leasing costs	'	10,861
Cash paid for acquisition of real estate	'	77,935
Digital Realty Trust, L.P. [Member]	'	'
Cash flows from operating activities:	'	'
Net income	46,717	51,681
Adjustments to reconcile net income to net cash provided by operating activities:	'	'
Gain on contribution of investment property to unconsolidated joint venture	-1,906	'
Equity in earnings of unconsolidated joint ventures	-2,581	-2,335
Change in fair value of accrued contingent consideration	-3,403	1,300
Distributions from unconsolidated joint ventures	2,214	1,625
Write-off of net assets due to early lease terminations	'	-36
Depreciation and amortization of buildings and improvements, tenant improvements and acquired ground leases	111,142	93,286
Amortization of share-based unearned compensation	8,985	2,887
Allowance for doubtful accounts	1,580	1,100
Amortization of deferred financing costs	2,085	2,431
Loss on early extinguishment of debt	292	'
Amortization of debt discount/premium	385	160
Amortization of acquired-in place lease value and deferred leasing costs	19,478	18,338
Amortization of acquired above-market leases and acquired below-market leases, net	-2,788	-3,045
Changes in assets and liabilities:	'	'
Restricted cash	-1,589	-62
Accounts and other receivables	2,129	-15,584
Deferred rent	-21,335	-21,249
Deferred leasing costs	-6,798	-4,922
Other assets	-14,227	-10,858
Accounts payable and other accrued liabilities	-26,051	-28,858
Security deposits and prepaid rents	2,082	3,182
Net cash provided by operating activities	116,411	89,041
Cash flows from investing activities:	'	'
Acquisitions of real estate	'	-77,935
Proceeds from contribution of investment property to unconsolidated joint venture	11,408	'
Investment in unconsolidated joint ventures	-10,564	-5,647
Investment in equity securities	-5	-12,549
Deposits paid for acquisitions of real estate	'	-250
Receipt of value added tax refund	425	1,990
Refundable value added tax paid	-2,289	-1,914
Change in restricted cash	-814	-359
Improvements to and advances for investments in real estate	-224,118	-258,731
Improvement advances to tenants	-2,499	-1,010
Collection of advances from tenants for improvements	912	767
Net cash used in investing activities	-227,544	-355,638
Cash flows from financing activities:	'	'
Borrowings on revolving credit facility	433,297	492,643
Repayments on revolving credit facility	-371,351	-657,095
Borrowings on 4.250% unsecured senior notes due 2025	'	630,026
Principal payments on mortgage loans	-3,343	-3,896
Change in restricted cash	-68	76
Payment of loan fees and costs	-150	-5,272
Capital contributions received from noncontrolling interests in consolidated joint ventures	'	45
General partner contributions	289,795	-87
Payment of dividends/distributions to preferred stockholders/unitholders	-11,726	-8,054
Payment of dividends/distributions to common stockholders/unitholders and distributions to noncontrolling interests in operating partnership	-211,887	-195,940
Net cash provided by financing activities	124,567	252,446
Net increase in cash and cash equivalents	13,434	-14,151
Cash and cash equivalents at beginning of period	56,808	56,281
Cash and cash equivalents at end of period	70,242	42,130
Supplemental disclosure of cash flow information:	'	'
Cash paid for interest, including amounts capitalized	67,824	56,163
Cash paid for income taxes	863	60
Supplementary disclosure of noncash investing and financing activities:	'	'
Change in net assets related to foreign currency translation adjustments	3,819	-63,063
Increase in accounts payable and other accrued liabilities related to change in fair value of interest rate swaps	-1,343	-124
Preferred stock/units converted to shares of common stock/units	'	119,348
Accrual for additions to investments in real estate and tenant improvement advances included in accounts payable and accrued expenses	197,376	244,284
Additional accrual of contingent purchase price for investments in real estate	'	7,130
Allocation of purchase price of real estate/investment in partnership to:	'	'
Investments in real estate	'	69,149
Acquired above-market leases	'	12
Acquired below-market leases	'	-2,087
Acquired-in place lease value and deferred leasing costs	'	10,861
Cash paid for acquisition of real estate	'	$77,935

Condensed_Consolidated_Stateme4

Condensed Consolidated Statements Of Cash Flows (Parenthetical) (4.25% Notes Due 2025 [Member])	3 Months Ended
	Mar. 31, 2014
Senior Notes [Member]	'
Interest rate	4.25%
Maturity date	'2025
Digital Realty Trust, L.P. [Member]	'
Maturity date	'2025
Digital Realty Trust, L.P. [Member] | Senior Notes [Member]	'
Interest rate	4.25%

Organization_And_Description_O

Organization And Description Of Business	3 Months Ended
	Mar. 31, 2014
Organization And Description Of Business	'
	1. Organization and Description of Business
	Digital Realty Trust, Inc. through its controlling interest in Digital Realty Trust, L.P. (the Operating Partnership) and the subsidiaries of the Operating Partnership (collectively, we, our, us or the Company) is engaged in the business of owning, acquiring, developing and managing technology-related real estate. The Company is focused on providing customer driven datacenter solutions for domestic and international tenants across a variety of industry verticals ranging from financial services, cloud and information technology services, to manufacturing, energy, health care and consumer products. As of March 31, 2014, our portfolio consisted of 131 properties, including 13 properties held as investments in unconsolidated joint ventures and developable land, of which 104 are located throughout North America, 22 are located in Europe, three are located in Australia and two are located in Asia. We are diversified in major markets where corporate datacenter and technology tenants are concentrated, including the Boston, Chicago, Dallas, Los Angeles, New York Metro, Northern Virginia, Phoenix, San Francisco and Silicon Valley metropolitan areas in the United States, Amsterdam, Dublin, London and Paris markets in Europe and Singapore, Sydney, Melbourne, Hong Kong and Osaka markets in the Asia Pacific region. The portfolio consists of Internet gateway and corporate datacenter properties, technology manufacturing properties and regional or national headquarters of technology companies.
	The Operating Partnership was formed on July 21, 2004 in anticipation of Digital Realty Trust, Inc.’s initial public offering (IPO) on November 3, 2004 and commenced operations on that date. As of March 31, 2014, Digital Realty Trust, Inc. owns a  97.6% common interest and a 100% preferred interest in the Operating Partnership. As sole general partner of the Operating Partnership, Digital Realty Trust, Inc. has the full, exclusive and complete responsibility for the Operating Partnership’s day-to-day management and control. The limited partners of the Operating Partnership do not have rights to replace Digital Realty Trust, Inc. as the general partner nor do they have participating rights, although they do have certain protective rights.
Digital Realty Trust, L.P. [Member]	'
Organization And Description Of Business	'
	1. Organization and Description of Business
	Digital Realty Trust, Inc. through its controlling interest in Digital Realty Trust, L.P. (the Operating Partnership) and the subsidiaries of the Operating Partnership (collectively, we, our, us or the Company) is engaged in the business of owning, acquiring, developing and managing technology-related real estate. The Company is focused on providing customer driven datacenter solutions for domestic and international tenants across a variety of industry verticals ranging from financial services, cloud and information technology services, to manufacturing, energy, health care and consumer products. As of March 31, 2014, our portfolio consisted of 131 properties, including 13 properties held as investments in unconsolidated joint ventures and developable land, of which 104 are located throughout North America, 22 are located in Europe, three are located in Australia and two are located in Asia. We are diversified in major markets where corporate datacenter and technology tenants are concentrated, including the Boston, Chicago, Dallas, Los Angeles, New York Metro, Northern Virginia, Phoenix, San Francisco and Silicon Valley metropolitan areas in the United States, Amsterdam, Dublin, London and Paris markets in Europe and Singapore, Sydney, Melbourne, Hong Kong and Osaka markets in the Asia Pacific region. The portfolio consists of Internet gateway and corporate datacenter properties, technology manufacturing properties and regional or national headquarters of technology companies.
	The Operating Partnership was formed on July 21, 2004 in anticipation of Digital Realty Trust, Inc.’s initial public offering (IPO) on November 3, 2004 and commenced operations on that date. As of March 31, 2014, Digital Realty Trust, Inc. owns a  97.6% common interest and a 100% preferred interest in the Operating Partnership. As sole general partner of the Operating Partnership, Digital Realty Trust, Inc. has the full, exclusive and complete responsibility for the Operating Partnership’s day-to-day management and control. The limited partners of the Operating Partnership do not have rights to replace Digital Realty Trust, Inc. as the general partner nor do they have participating rights, although they do have certain protective rights.

Summary_Of_Significant_Account

Summary Of Significant Accounting Policies	3 Months Ended
	Mar. 31, 2014
Summary Of Significant Accounting Policies	'
	2. Summary of Significant Accounting Policies
	(a) Principles of Consolidation and Basis of Presentation
	The accompanying interim condensed consolidated financial statements include all of the accounts of Digital Realty Trust, Inc., the Operating Partnership and the subsidiaries of the Operating Partnership. Intercompany balances and transactions have been eliminated.
	The accompanying interim condensed consolidated financial statements are unaudited, but have been prepared in accordance with U.S. generally accepted accounting principles (U.S. GAAP) for interim financial information and in compliance with the rules and regulations of the United States Securities and Exchange Commission. Accordingly, they do not include all of the disclosures required by U.S. GAAP for complete financial statements. In the opinion of management, all adjustments necessary for a fair presentation have been included. All such adjustments are considered to be of a normal recurring nature, except as otherwise indicated. The results of operations for the interim periods are not necessarily indicative of the results to be obtained for the full fiscal year. These condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and the notes thereto included in our annual report on Form 10-K, as amended, for the year ended December 31, 2013.
	The notes to the condensed consolidated financial statements of Digital Realty Trust, Inc. and the Operating Partnership have been combined to provide the following benefits:
		•	enhancing investors’ understanding of the Company and the Operating Partnership by enabling investors to view the business as a whole in the same manner as management views and operates the business;
		•	eliminating duplicative disclosure and providing a more streamlined and readable presentation since a substantial portion of the disclosure applies to both the Company and the Operating Partnership; and
		•	creating time and cost efficiencies through the preparation of one set of notes instead of two separate sets of notes.
	There are a few differences between the Company and the Operating Partnership, which are reflected in these condensed consolidated financial statements. We believe it is important to understand the differences between the Company and the Operating Partnership in the context of how we operate as an interrelated consolidated company. Digital Realty Trust, Inc.’s only material asset is its ownership of partnership interests of the Operating Partnership. As a result, Digital Realty Trust, Inc. does not conduct business itself, other than acting as the sole general partner of the Operating Partnership, issuing public equity from time to time and guaranteeing certain unsecured debt of the Operating Partnership and certain of its subsidiaries. Digital Realty Trust, Inc. itself does not hold any indebtedness but guarantees the unsecured debt of the Operating Partnership and certain of its subsidiaries, as disclosed in these notes. The Operating Partnership holds substantially all the assets of the Company and holds the ownership interests in the Company’s joint ventures. The Operating Partnership conducts the operations of the business and is structured as a partnership with no publicly traded equity. Except for net proceeds from public equity issuances by Digital Realty Trust, Inc., which are generally contributed to the Operating Partnership in exchange for partnership units, the Operating Partnership generates the capital required by the Company’s business through the Operating Partnership’s operations, by the Operating Partnership’s direct or indirect incurrence of indebtedness or through the issuance of partnership units.
	The presentation of noncontrolling interests in operating partnership, stockholders’ equity and partners’ capital are the main areas of difference between the condensed consolidated financial statements of Digital Realty Trust, Inc. and those of the Operating Partnership. The common limited partnership interests held by the limited partners in the Operating Partnership are presented as limited partners’ capital within partners’ capital in the Operating Partnership’s condensed consolidated financial statements and as noncontrolling interests in operating partnership within equity in Digital Realty Trust, Inc.’s condensed consolidated financial statements. The common and preferred partnership interests held by Digital Realty Trust, Inc. in the Operating Partnership are presented as general partner’s capital within partners’ capital in the Operating Partnership’s condensed consolidated financial statements and as preferred stock, common stock, additional paid-in capital and accumulated dividends in excess of earnings within stockholders’ equity in Digital Realty Trust, Inc.’s condensed consolidated financial statements. The differences in the presentations between stockholders’ equity and partners’ capital result from the differences in the equity issued at the Digital Realty Trust, Inc. and the Operating Partnership levels.
	To help investors understand the significant differences between the Company and the Operating Partnership, these consolidated financial statements present the following separate sections for each of the Company and the Operating Partnership:
		•	condensed consolidated face financial statements; and
		•	the following notes to the condensed consolidated financial statements:
		•	Debt of the Company and Debt of the Operating Partnership;
		•	Income per Share and Income per Unit; and
		•	Equity and Accumulated Other Comprehensive Loss, Net of the Company and Capital and Accumulated Other Comprehensive Income (Loss) of the Operating Partnership.
	In the sections that combine disclosure of Digital Realty Trust, Inc. and the Operating Partnership, these notes refer to actions or holdings as being actions or holdings of the Company. Although the Operating Partnership is generally the entity that enters into contracts and joint ventures and holds assets and debt, reference to the Company is appropriate because the business is one enterprise and the Company operates the business through the Operating Partnership.
	(b) Cash Equivalents
	For the purpose of the condensed consolidated statements of cash flows, we consider short-term investments with original maturities of 90 days or less to be cash equivalents. As of March 31, 2014, cash equivalents consist of investments in money market instruments.
	(c) Investment in Unconsolidated Joint Ventures
	The Company’s investment in unconsolidated joint ventures is accounted for using the equity method, whereby the investment is increased for capital contributed and our share of the joint ventures’ net income and decreased by distributions we receive and our share of any losses of the joint ventures.
	We amortize the difference between the cost of our investments in unconsolidated joint ventures and the book value of the underlying equity into equity in earnings from unconsolidated affiliates on a straight-line basis consistent with the lives of the underlying assets.
	(d) Capitalization of Costs
	Direct and indirect project costs that are clearly associated with the development of properties are capitalized as incurred. Project costs include all costs directly associated with the development of a property, including construction costs, interest, property taxes, insurance, legal fees and costs of personnel working on the project. Indirect costs that do not clearly relate to the projects under development are not capitalized and are charged to expense as incurred.
	Capitalization of costs begins when the activities necessary to get the development project ready for its intended use begins, which include costs incurred before the beginning of construction. Capitalization of costs ceases when the development project is substantially complete and ready for its intended use. Determining when a development project commences, and when it is substantially complete and ready for its intended use involves a degree of judgment. We generally consider a development project to be substantially complete and ready for its intended use upon receipt of a certificate of occupancy. We cease cost capitalization if activities necessary for the development of the property have been suspended. Capitalized costs are allocated to the specific components of a project that are benefited.
	During the three months ended March 31, 2014 and 2013, we capitalized interest of approximately $5.3 million and $5.3 million, respectively. During the three months ended March 31, 2014 and 2013, we capitalized amounts relating to compensation expense of employees direct and incremental to construction and successful leasing activities of approximately $12.4  million and $10.1 million, respectively. Cash flows from capitalized leasing costs of $9.6 million and $10.8 million are included in improvements to and advances for investments in real estate in cash flows from investing activities in the condensed consolidated statements of cash flows for the three months ended March 31, 2014 and 2013, respectively.
	(e) Share-Based Compensation
	The Company measures all share-based compensation awards at fair value on the date they are granted to employees and directors, and recognizes compensation cost, net of forfeitures, over the requisite service period for awards with only a service condition. The estimated fair value of the long-term incentive units and Class D Units (discussed in note 13) granted by us is being amortized on a straight-line basis over the expected service period.
	The fair value of share-based compensation awards that contain a market condition is measured using a lattice model and not adjusted based on actual achievement of the performance goals.
	(f) Income Taxes
	Digital Realty Trust, Inc. has elected to be treated as a real estate investment trust (a “REIT”) for federal income tax purposes. As a REIT, Digital Realty Trust, Inc. generally is not required to pay federal corporate income tax to the extent taxable income is currently distributed to its stockholders.  If Digital Realty Trust, Inc. fails to qualify as a REIT in any taxable year, it will be subject to federal income tax (including any applicable alternative minimum tax) on its taxable income at regular corporate tax rates.
	The Company is subject to foreign, state and local income taxes in the jurisdictions in which it conducts business. The Company’s U.S. consolidated taxable REIT subsidiary is subject to both federal and state income taxes to the extent there is taxable income. Accordingly, the Company recognizes current and deferred income taxes for its taxable REIT subsidiaries, certain states and non-U.S. jurisdictions, as appropriate.
	We assess our significant tax positions in accordance with U.S. GAAP for all open tax years and determine whether we have any material unrecognized liabilities from uncertain tax benefits. If a tax position is not considered “more-likely-than-not” to be sustained solely on its technical merits, no benefits of the tax position are to be recognized (for financial statement purposes). As of March 31, 2014 and December 31, 2013, we have no assets or liabilities for uncertain tax positions. We classify interest and penalties from significant uncertain tax positions as interest expense and operating expense, respectively, in our condensed consolidated income statements. For the three months ended March 31, 2014 and 2013, we had no such interest or penalties. The tax year 2010 and thereafter remain open to examination by the major taxing jurisdictions with which the Company files tax returns.
	See Note 10 for further discussion on income taxes.
	(g) Presentation of Transactional-based Taxes
	We account for transactional-based taxes, such as value added tax, or VAT, for our international properties on a net basis.
	(h) Fee Income
	Occasionally, customers engage the company for certain services.  The nature of these services historically involves property management, construction management, and assistance with financing.  The proper revenue recognition of these services can be different, depending on whether the arrangements are service revenue or contractor type revenue.
	Service revenues are typically recognized on an equal monthly basis based on the minimum fee to be earned.  The monthly amounts could be adjusted depending on if certain performance milestones are met.
	Fee income also includes management fees. These fees arise from contractual agreements with entities in which we have a noncontrolling interest. The management fees are recognized as earned under the respective agreements. Management and other fee income related to partially owned entities are recognized to the extent attributable to the unaffiliated interest.
	Contractor type revenue for long-term contracts is recognized under the percentage-of-completion method of accounting. Revenues are determined by measuring the percentage of total costs incurred to date to estimated total costs for each construction management contract based on current estimates of costs to complete. Contract costs include all labor and benefits, materials, subcontracts, and an allocation of indirect costs related to contract performance. Indirect costs are allocated to projects based upon labor hours charged. Third party costs are included in construction management expense and their reimbursements are included in construction management revenue to the extent that the Company is the primary obligor for the third party costs. Otherwise, construction management revenue and expense is reflected net of third party costs. As long-term design-build projects extend over one or more years, revisions in cost and estimated earnings during the course of the work are reflected in the accounting period in which the facts which require the revision become known. At the time a loss on a design-build project becomes known, the entire amount of the estimated loss is recognized in the condensed consolidated financial statements. Change orders are recognized when they are approved by the client.
	Costs and estimated earnings in excess of billings on uncompleted construction management projects are included in other assets in the condensed consolidated balance sheets. Billings in excess of costs and estimated earnings on uncompleted construction management projects are included in accounts payable and other accrued liabilities in the condensed consolidated balance sheets. Customers are billed on a monthly basis at the end of each month, which can be in advance of work performed.
	(i) Assets and Liabilities Measured at Fair Value
	Fair value under U.S. GAAP is a market-based measurement, not an entity-specific measurement. Therefore, our fair value measurements are determined based on the assumptions that market participants would use in pricing the asset or liability. As a basis for considering market participant assumptions in fair-value measurements, we use a fair-value hierarchy that distinguishes between market participant assumptions based on market data obtained from sources independent of the reporting entity (observable inputs that are classified within Levels 1 and 2 of the hierarchy) and the reporting entity’s own assumptions about market participant assumptions (unobservable inputs classified within Level 3 of the hierarchy).
	Level 1 inputs utilize quoted prices (unadjusted) in active markets for identical assets or liabilities that the Company has the ability to access. Level 2 inputs are inputs other than quoted prices included in Level 1 that are observable for the asset or liability, either directly or indirectly. Level 2 inputs may include quoted prices for similar assets and liabilities in active markets, as well as inputs that are observable for the asset or liability (other than quoted prices), such as interest rates, foreign exchange rates, and yield curves that are observable at commonly quoted intervals. Level 3 inputs are unobservable inputs for the asset or liability which are typically based on an entity’s own assumptions, as there is little, if any, related market activity. In instances where the determination of the fair-value measurement is based on inputs from different levels of the fair-value hierarchy, the level in the fair-value hierarchy within which the entire fair-value measurement falls is based on the lowest level input that is significant to the fair-value measurement in its entirety. Our assessment of the significance of a particular input to the fair-value measurement in its entirety requires judgment, and considers factors specific to the asset or liability.
	(j) Transactions Expense
	Transactions expense includes acquisition-related expenses and other business development expenses, which are expensed as incurred. Acquisition-related expenses include closing costs, broker commissions and other professional fees, including legal and accounting fees related to acquisitions and potential acquisitions.
	(k) Management’s Estimates
	The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the condensed consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates made. On an on-going basis, we evaluate our estimates, including those related to the valuation of our real estate properties, contingent consideration, accounts receivable and deferred rent receivable, performance-based equity compensation plans, the completeness of accrued liabilities and Digital Realty Trust, Inc.’s qualification as a REIT. We base our estimates on historical experience, current market conditions, and various other assumptions that are believed to be reasonable under the circumstances. Actual results may vary from those estimates and those estimates could vary under different assumptions or conditions.
	(l) Segment and Geographic Information
	All of our properties generate similar revenues and expenses related to tenant rent and reimbursements and operating expenses. The delivery of our products is consistent across all properties and although services are provided to a wide range of customers, the types of real estate services provided to them are standardized throughout the portfolio. As such, the properties in our portfolio have similar economic characteristics and the nature of the products and services provided to our customers and the method to distribute such services are consistent throughout the portfolio. Consequently, our properties qualify for aggregation into one reporting segment.
	Operating revenues from properties in the United States were $295.2 million and $274.0 million and outside the United States were $95.4 million and $84.4 million for the three months ended March 31, 2014 and 2013, respectively. We had long-lived assets located in the United States of $5.7 billion and $5.6 billion and outside the United States of $2.7 billion and $2.7 billion as of March 31, 2014 and December 31, 2013, respectively.
	Operating revenues from properties located in the United Kingdom were $54.9 million and $47.3 million, or 14.1% and 13.2% of total operating revenues, for the three months ended March 31, 2014 and 2013, respectively. No other foreign country comprised more than 10% of total operating revenues for each of these periods. We had long-lived assets located in the United Kingdom of $1.7 billion and $1.8 billion, or 20.8% and 21.1% of total long-lived assets, as of March 31, 2014 and December 31, 2013, respectively. No other foreign country comprised more than 10% of total long-lived assets as of March 31, 2014 and December 31, 2013.
	(m) Reclassifications
	Certain reclassifications to prior year amounts have been made to conform to the current year presentation. During the three months ended March 31, 2013, $1.3 million was reclassified from rental property operating and maintenance expense to change in fair value of contingent consideration.
	(n) Recent Accounting Pronouncements
	In April 2014, Accounting Standards Update (ASU) 2014-08, Presentation of Financial Statements (Topic 205) and Property, Plant, and Equipment (Topic 360), Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity, was issued which amends the requirements for reporting discontinued operations. Under ASU 2014-08, a disposal of a component of an entity or a group of components of an entity is required to be reported in discontinued operations if the disposal represents a strategic shift that has (or will have) a major effect on an entity's operations and financial results when the component or group of components meets the criteria to be classified as held for sale or when the component or group of components is disposed of by sale or other than by sale. In addition, this ASU requires additional disclosures about both discontinued operations and the disposal of an individually significant component of an entity that does not qualify for discontinued operations presentation in the financial statements.  As permitted by the standard, the Company has elected to early adopt the provisions of ASU 2014-08 as of January 1, 2014 and will apply the provisions prospectively.
Digital Realty Trust, L.P. [Member]	'
Summary Of Significant Accounting Policies	'
	2. Summary of Significant Accounting Policies
	(a) Principles of Consolidation and Basis of Presentation
	The accompanying interim condensed consolidated financial statements include all of the accounts of Digital Realty Trust, Inc., the Operating Partnership and the subsidiaries of the Operating Partnership. Intercompany balances and transactions have been eliminated.
	The accompanying interim condensed consolidated financial statements are unaudited, but have been prepared in accordance with U.S. generally accepted accounting principles (U.S. GAAP) for interim financial information and in compliance with the rules and regulations of the United States Securities and Exchange Commission. Accordingly, they do not include all of the disclosures required by U.S. GAAP for complete financial statements. In the opinion of management, all adjustments necessary for a fair presentation have been included. All such adjustments are considered to be of a normal recurring nature, except as otherwise indicated. The results of operations for the interim periods are not necessarily indicative of the results to be obtained for the full fiscal year. These condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and the notes thereto included in our annual report on Form 10-K, as amended, for the year ended December 31, 2013.
	The notes to the condensed consolidated financial statements of Digital Realty Trust, Inc. and the Operating Partnership have been combined to provide the following benefits:
		•	enhancing investors’ understanding of the Company and the Operating Partnership by enabling investors to view the business as a whole in the same manner as management views and operates the business;
		•	eliminating duplicative disclosure and providing a more streamlined and readable presentation since a substantial portion of the disclosure applies to both the Company and the Operating Partnership; and
		•	creating time and cost efficiencies through the preparation of one set of notes instead of two separate sets of notes.
	There are a few differences between the Company and the Operating Partnership, which are reflected in these condensed consolidated financial statements. We believe it is important to understand the differences between the Company and the Operating Partnership in the context of how we operate as an interrelated consolidated company. Digital Realty Trust, Inc.’s only material asset is its ownership of partnership interests of the Operating Partnership. As a result, Digital Realty Trust, Inc. does not conduct business itself, other than acting as the sole general partner of the Operating Partnership, issuing public equity from time to time and guaranteeing certain unsecured debt of the Operating Partnership and certain of its subsidiaries. Digital Realty Trust, Inc. itself does not hold any indebtedness but guarantees the unsecured debt of the Operating Partnership and certain of its subsidiaries, as disclosed in these notes. The Operating Partnership holds substantially all the assets of the Company and holds the ownership interests in the Company’s joint ventures. The Operating Partnership conducts the operations of the business and is structured as a partnership with no publicly traded equity. Except for net proceeds from public equity issuances by Digital Realty Trust, Inc., which are generally contributed to the Operating Partnership in exchange for partnership units, the Operating Partnership generates the capital required by the Company’s business through the Operating Partnership’s operations, by the Operating Partnership’s direct or indirect incurrence of indebtedness or through the issuance of partnership units.
	The presentation of noncontrolling interests in operating partnership, stockholders’ equity and partners’ capital are the main areas of difference between the condensed consolidated financial statements of Digital Realty Trust, Inc. and those of the Operating Partnership. The common limited partnership interests held by the limited partners in the Operating Partnership are presented as limited partners’ capital within partners’ capital in the Operating Partnership’s condensed consolidated financial statements and as noncontrolling interests in operating partnership within equity in Digital Realty Trust, Inc.’s condensed consolidated financial statements. The common and preferred partnership interests held by Digital Realty Trust, Inc. in the Operating Partnership are presented as general partner’s capital within partners’ capital in the Operating Partnership’s condensed consolidated financial statements and as preferred stock, common stock, additional paid-in capital and accumulated dividends in excess of earnings within stockholders’ equity in Digital Realty Trust, Inc.’s condensed consolidated financial statements. The differences in the presentations between stockholders’ equity and partners’ capital result from the differences in the equity issued at the Digital Realty Trust, Inc. and the Operating Partnership levels.
	To help investors understand the significant differences between the Company and the Operating Partnership, these consolidated financial statements present the following separate sections for each of the Company and the Operating Partnership:
		•	condensed consolidated face financial statements; and
		•	the following notes to the condensed consolidated financial statements:
		•	Debt of the Company and Debt of the Operating Partnership;
		•	Income per Share and Income per Unit; and
		•	Equity and Accumulated Other Comprehensive Loss, Net of the Company and Capital and Accumulated Other Comprehensive Income (Loss) of the Operating Partnership.
	In the sections that combine disclosure of Digital Realty Trust, Inc. and the Operating Partnership, these notes refer to actions or holdings as being actions or holdings of the Company. Although the Operating Partnership is generally the entity that enters into contracts and joint ventures and holds assets and debt, reference to the Company is appropriate because the business is one enterprise and the Company operates the business through the Operating Partnership.
	(b) Cash Equivalents
	For the purpose of the condensed consolidated statements of cash flows, we consider short-term investments with original maturities of 90 days or less to be cash equivalents. As of March 31, 2014, cash equivalents consist of investments in money market instruments.
	(c) Investment in Unconsolidated Joint Ventures
	The Company’s investment in unconsolidated joint ventures is accounted for using the equity method, whereby the investment is increased for capital contributed and our share of the joint ventures’ net income and decreased by distributions we receive and our share of any losses of the joint ventures.
	We amortize the difference between the cost of our investments in unconsolidated joint ventures and the book value of the underlying equity into equity in earnings from unconsolidated affiliates on a straight-line basis consistent with the lives of the underlying assets.
	(d) Capitalization of Costs
	Direct and indirect project costs that are clearly associated with the development of properties are capitalized as incurred. Project costs include all costs directly associated with the development of a property, including construction costs, interest, property taxes, insurance, legal fees and costs of personnel working on the project. Indirect costs that do not clearly relate to the projects under development are not capitalized and are charged to expense as incurred.
	Capitalization of costs begins when the activities necessary to get the development project ready for its intended use begins, which include costs incurred before the beginning of construction. Capitalization of costs ceases when the development project is substantially complete and ready for its intended use. Determining when a development project commences, and when it is substantially complete and ready for its intended use involves a degree of judgment. We generally consider a development project to be substantially complete and ready for its intended use upon receipt of a certificate of occupancy. We cease cost capitalization if activities necessary for the development of the property have been suspended. Capitalized costs are allocated to the specific components of a project that are benefited.
	During the three months ended March 31, 2014 and 2013, we capitalized interest of approximately $5.3 million and $5.3 million, respectively. During the three months ended March 31, 2014 and 2013, we capitalized amounts relating to compensation expense of employees direct and incremental to construction and successful leasing activities of approximately $12.4  million and $10.1 million, respectively. Cash flows from capitalized leasing costs of $9.6 million and $10.8 million are included in improvements to and advances for investments in real estate in cash flows from investing activities in the condensed consolidated statements of cash flows for the three months ended March 31, 2014 and 2013, respectively.
	(e) Share-Based Compensation
	The Company measures all share-based compensation awards at fair value on the date they are granted to employees and directors, and recognizes compensation cost, net of forfeitures, over the requisite service period for awards with only a service condition. The estimated fair value of the long-term incentive units and Class D Units (discussed in note 13) granted by us is being amortized on a straight-line basis over the expected service period.
	The fair value of share-based compensation awards that contain a market condition is measured using a lattice model and not adjusted based on actual achievement of the performance goals.
	(f) Income Taxes
	Digital Realty Trust, Inc. has elected to be treated as a real estate investment trust (a “REIT”) for federal income tax purposes. As a REIT, Digital Realty Trust, Inc. generally is not required to pay federal corporate income tax to the extent taxable income is currently distributed to its stockholders.  If Digital Realty Trust, Inc. fails to qualify as a REIT in any taxable year, it will be subject to federal income tax (including any applicable alternative minimum tax) on its taxable income at regular corporate tax rates.
	The Company is subject to foreign, state and local income taxes in the jurisdictions in which it conducts business. The Company’s U.S. consolidated taxable REIT subsidiary is subject to both federal and state income taxes to the extent there is taxable income. Accordingly, the Company recognizes current and deferred income taxes for its taxable REIT subsidiaries, certain states and non-U.S. jurisdictions, as appropriate.
	We assess our significant tax positions in accordance with U.S. GAAP for all open tax years and determine whether we have any material unrecognized liabilities from uncertain tax benefits. If a tax position is not considered “more-likely-than-not” to be sustained solely on its technical merits, no benefits of the tax position are to be recognized (for financial statement purposes). As of March 31, 2014 and December 31, 2013, we have no assets or liabilities for uncertain tax positions. We classify interest and penalties from significant uncertain tax positions as interest expense and operating expense, respectively, in our condensed consolidated income statements. For the three months ended March 31, 2014 and 2013, we had no such interest or penalties. The tax year 2010 and thereafter remain open to examination by the major taxing jurisdictions with which the Company files tax returns.
	See Note 10 for further discussion on income taxes.
	(g) Presentation of Transactional-based Taxes
	We account for transactional-based taxes, such as value added tax, or VAT, for our international properties on a net basis.
	(h) Fee Income
	Occasionally, customers engage the company for certain services.  The nature of these services historically involves property management, construction management, and assistance with financing.  The proper revenue recognition of these services can be different, depending on whether the arrangements are service revenue or contractor type revenue.
	Service revenues are typically recognized on an equal monthly basis based on the minimum fee to be earned.  The monthly amounts could be adjusted depending on if certain performance milestones are met.
	Fee income also includes management fees. These fees arise from contractual agreements with entities in which we have a noncontrolling interest. The management fees are recognized as earned under the respective agreements. Management and other fee income related to partially owned entities are recognized to the extent attributable to the unaffiliated interest.
	Contractor type revenue for long-term contracts is recognized under the percentage-of-completion method of accounting. Revenues are determined by measuring the percentage of total costs incurred to date to estimated total costs for each construction management contract based on current estimates of costs to complete. Contract costs include all labor and benefits, materials, subcontracts, and an allocation of indirect costs related to contract performance. Indirect costs are allocated to projects based upon labor hours charged. Third party costs are included in construction management expense and their reimbursements are included in construction management revenue to the extent that the Company is the primary obligor for the third party costs. Otherwise, construction management revenue and expense is reflected net of third party costs. As long-term design-build projects extend over one or more years, revisions in cost and estimated earnings during the course of the work are reflected in the accounting period in which the facts which require the revision become known. At the time a loss on a design-build project becomes known, the entire amount of the estimated loss is recognized in the condensed consolidated financial statements. Change orders are recognized when they are approved by the client.
	Costs and estimated earnings in excess of billings on uncompleted construction management projects are included in other assets in the condensed consolidated balance sheets. Billings in excess of costs and estimated earnings on uncompleted construction management projects are included in accounts payable and other accrued liabilities in the condensed consolidated balance sheets. Customers are billed on a monthly basis at the end of each month, which can be in advance of work performed.
	(i) Assets and Liabilities Measured at Fair Value
	Fair value under U.S. GAAP is a market-based measurement, not an entity-specific measurement. Therefore, our fair value measurements are determined based on the assumptions that market participants would use in pricing the asset or liability. As a basis for considering market participant assumptions in fair-value measurements, we use a fair-value hierarchy that distinguishes between market participant assumptions based on market data obtained from sources independent of the reporting entity (observable inputs that are classified within Levels 1 and 2 of the hierarchy) and the reporting entity’s own assumptions about market participant assumptions (unobservable inputs classified within Level 3 of the hierarchy).
	Level 1 inputs utilize quoted prices (unadjusted) in active markets for identical assets or liabilities that the Company has the ability to access. Level 2 inputs are inputs other than quoted prices included in Level 1 that are observable for the asset or liability, either directly or indirectly. Level 2 inputs may include quoted prices for similar assets and liabilities in active markets, as well as inputs that are observable for the asset or liability (other than quoted prices), such as interest rates, foreign exchange rates, and yield curves that are observable at commonly quoted intervals. Level 3 inputs are unobservable inputs for the asset or liability which are typically based on an entity’s own assumptions, as there is little, if any, related market activity. In instances where the determination of the fair-value measurement is based on inputs from different levels of the fair-value hierarchy, the level in the fair-value hierarchy within which the entire fair-value measurement falls is based on the lowest level input that is significant to the fair-value measurement in its entirety. Our assessment of the significance of a particular input to the fair-value measurement in its entirety requires judgment, and considers factors specific to the asset or liability.
	(j) Transactions Expense
	Transactions expense includes acquisition-related expenses and other business development expenses, which are expensed as incurred. Acquisition-related expenses include closing costs, broker commissions and other professional fees, including legal and accounting fees related to acquisitions and potential acquisitions.
	(k) Management’s Estimates
	The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the condensed consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates made. On an on-going basis, we evaluate our estimates, including those related to the valuation of our real estate properties, contingent consideration, accounts receivable and deferred rent receivable, performance-based equity compensation plans, the completeness of accrued liabilities and Digital Realty Trust, Inc.’s qualification as a REIT. We base our estimates on historical experience, current market conditions, and various other assumptions that are believed to be reasonable under the circumstances. Actual results may vary from those estimates and those estimates could vary under different assumptions or conditions.
	(l) Segment and Geographic Information
	All of our properties generate similar revenues and expenses related to tenant rent and reimbursements and operating expenses. The delivery of our products is consistent across all properties and although services are provided to a wide range of customers, the types of real estate services provided to them are standardized throughout the portfolio. As such, the properties in our portfolio have similar economic characteristics and the nature of the products and services provided to our customers and the method to distribute such services are consistent throughout the portfolio. Consequently, our properties qualify for aggregation into one reporting segment.
	Operating revenues from properties in the United States were $295.2 million and $274.0 million and outside the United States were $95.4 million and $84.4 million for the three months ended March 31, 2014 and 2013, respectively. We had long-lived assets located in the United States of $5.7 billion and $5.6 billion and outside the United States of $2.7 billion and $2.7 billion as of March 31, 2014 and December 31, 2013, respectively.
	Operating revenues from properties located in the United Kingdom were $54.9 million and $47.3 million, or 14.1% and 13.2% of total operating revenues, for the three months ended March 31, 2014 and 2013, respectively. No other foreign country comprised more than 10% of total operating revenues for each of these periods. We had long-lived assets located in the United Kingdom of $1.7 billion and $1.8 billion, or 20.8% and 21.1% of total long-lived assets, as of March 31, 2014 and December 31, 2013, respectively. No other foreign country comprised more than 10% of total long-lived assets as of March 31, 2014 and December 31, 2013.
	(m) Reclassifications
	Certain reclassifications to prior year amounts have been made to conform to the current year presentation. During the three months ended March 31, 2013, $1.3 million was reclassified from rental property operating and maintenance expense to change in fair value of contingent consideration.
	(n) Recent Accounting Pronouncements
	In April 2014, Accounting Standards Update (ASU) 2014-08, Presentation of Financial Statements (Topic 205) and Property, Plant, and Equipment (Topic 360), Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity, was issued which amends the requirements for reporting discontinued operations. Under ASU 2014-08, a disposal of a component of an entity or a group of components of an entity is required to be reported in discontinued operations if the disposal represents a strategic shift that has (or will have) a major effect on an entity's operations and financial results when the component or group of components meets the criteria to be classified as held for sale or when the component or group of components is disposed of by sale or other than by sale. In addition, this ASU requires additional disclosures about both discontinued operations and the disposal of an individually significant component of an entity that does not qualify for discontinued operations presentation in the financial statements.  As permitted by the standard, the Company has elected to early adopt the provisions of ASU 2014-08 as of January 1, 2014 and will apply the provisions prospectively.

Investments_In_Real_Estate

Investments In Real Estate	3 Months Ended
	Mar. 31, 2014
Investments In Real Estate	'
	3. Investments in Real Estate
	We acquired no real estate properties during the three months ended March 31, 2014.
	On April 7, 2014, a wholly-owned subsidiary of the Operating Partnership sold 6 Braham Street to the tenant for £25.0 million (or approximately $41.5 million based on the exchange rate as of April 7, 2014).  The transaction after costs and various tenant prepayments resulted in net proceeds of approximately £22.6 million (or approximately $37.5 million based on the exchange rate as of April 7, 2014) and a net gain of approximately £9.5 million (or approximately $15.8 million based on the exchange rate as of April 7, 2014), which will be recognized in the three month period ended June 30, 2014.  The transaction includes substantially all of the assets of 6 Braham Street and we expect no further cash flows following the sale date.
	The property was identified as held for sale on March 21, 2014 when we entered into a Heads of Terms agreement with the buyer.   6 Braham Street was not a significant component of our United Kingdom portfolio nor does the sale of 6 Braham represent a significant shift in our strategy.
Digital Realty Trust, L.P. [Member]	'
Investments In Real Estate	'
	3. Investments in Real Estate
	We acquired no real estate properties during the three months ended March 31, 2014.
	On April 7, 2014, a wholly-owned subsidiary of the Operating Partnership sold 6 Braham Street to the tenant for £25.0 million (or approximately $41.5 million based on the exchange rate as of April 7, 2014).  The transaction after costs and various tenant prepayments resulted in net proceeds of approximately £22.6 million (or approximately $37.5 million based on the exchange rate as of April 7, 2014) and a net gain of approximately £9.5 million (or approximately $15.8 million based on the exchange rate as of April 7, 2014), which will be recognized in the three month period ended June 30, 2014.  The transaction includes substantially all of the assets of 6 Braham Street and we expect no further cash flows following the sale date.
	The property was identified as held for sale on March 21, 2014 when we entered into a Heads of Terms agreement with the buyer.   6 Braham Street was not a significant component of our United Kingdom portfolio nor does the sale of 6 Braham represent a significant shift in our strategy.

Investment_In_Unconsolidated_J

Investment In Unconsolidated Joint Ventures	3 Months Ended
	Mar. 31, 2014
Investment In Unconsolidated Joint Ventures	'
	4. Investment in Unconsolidated Joint Ventures
	As of March 31, 2014, our investment in unconsolidated joint ventures consists of effective 50% interests in joint ventures that own a data center property at 2001 Sixth Avenue in Seattle, Washington, a data center property at 2020 Fifth Avenue in Seattle, Washington and a development property at 33 Chun Choi Street in Hong Kong, and a 20% interest in a joint venture with an investment fund managed by Prudential Real Estate Investors (PREI®). The following tables present summarized financial information for the joint ventures as of March 31, 2014 and December 31, 2013 and for the three months ended March 31, 2014 and 2013 (unaudited, in thousands):
		As of March 31, 2014					Three Months Ended March 31, 2014
	2014	Net Investment in Properties	Total Assets	Mortgage Loans	Total Liabilities	Equity / (Deficit)	Revenues	Property Operating Expense	Net Operating Income	Net Income (Loss)
	Total unconsolidated joint ventures	$            625,075	$       728,716	$        360,581	$        458,986	$       269,730	$         21,919	$           (5,009)	$         16,910	$           5,894
	Our investment in and share of equity in earnings					$         81,411				$           2,581
	of unconsolidated joint ventures
		As of December 31, 2013					Three Months Ended March 31, 2013
	2013	Net Investment in Properties	Total Assets	Mortgage Loans	Total Liabilities	Equity / (Deficit)	Revenues	Property Operating Expense	Net Operating Income	Net Income (Loss)
	Total unconsolidated joint ventures	$            584,837	$       676,015	$        337,953	$        444,062	$       231,953	$         11,099	$           (2,687)	$           8,412	$           4,931
	Our investment in and share of equity in earnings					$         70,504				$           2,335
	of unconsolidated joint ventures
	PREI ® Joint Venture
	On March 5, 2014, we contributed the 636 Pierce Street property, which was acquired in December 2013, to the PREI® Joint Venture that was initially formed in September 2013.  The property was valued at approximately $40.4 million and subject to $26.1 million in debt, which the joint venture assumed.  PREI® contributed approximately $11.4 million in cash for their 80% share of the net asset value of $14.3 million.  Subsequent to the closing, the joint venture refinanced the existing debt with $23.0 million drawn from the joint venture’s bank facility.  Including the refinance costs, PREI® contributed $17.5 million for the 636 Pierce Street property, bringing their contributed capital in the joint venture to $164.8 million.
	The transaction produced a $1.9 million gain for the Company representing the difference between the $11.4 million of cash proceeds received by the Company for their 80% share of the net asset less the Company’s book value.
	Differences between the Company’s investment in the joint venture and the amount of the underlying equity in net assets of the joint venture are due to basis differences resulting from the Company’s equity investment recorded at its historical basis versus the fair value of the Company’s contributed interest in the joint venture. Our proportionate share of the earnings or losses related to this unconsolidated joint venture is reflected as equity in earnings of unconsolidated joint ventures on the accompanying consolidated income statements.
Digital Realty Trust, L.P. [Member]	'
Investment In Unconsolidated Joint Ventures	'
	4. Investment in Unconsolidated Joint Ventures
	As of March 31, 2014, our investment in unconsolidated joint ventures consists of effective 50% interests in joint ventures that own a data center property at 2001 Sixth Avenue in Seattle, Washington, a data center property at 2020 Fifth Avenue in Seattle, Washington and a development property at 33 Chun Choi Street in Hong Kong, and a 20% interest in a joint venture with an investment fund managed by Prudential Real Estate Investors (PREI®). The following tables present summarized financial information for the joint ventures as of March 31, 2014 and December 31, 2013 and for the three months ended March 31, 2014 and 2013 (unaudited, in thousands):
		As of March 31, 2014					Three Months Ended March 31, 2014
	2014	Net Investment in Properties	Total Assets	Mortgage Loans	Total Liabilities	Equity / (Deficit)	Revenues	Property Operating Expense	Net Operating Income	Net Income (Loss)
	Total unconsolidated joint ventures	$            625,075	$       728,716	$        360,581	$        458,986	$       269,730	$         21,919	$           (5,009)	$         16,910	$           5,894
	Our investment in and share of equity in earnings					$         81,411				$           2,581
	of unconsolidated joint ventures
		As of December 31, 2013					Three Months Ended March 31, 2013
	2013	Net Investment in Properties	Total Assets	Mortgage Loans	Total Liabilities	Equity / (Deficit)	Revenues	Property Operating Expense	Net Operating Income	Net Income (Loss)
	Total unconsolidated joint ventures	$            584,837	$       676,015	$        337,953	$        444,062	$       231,953	$         11,099	$           (2,687)	$           8,412	$           4,931
	Our investment in and share of equity in earnings					$         70,504				$           2,335
	of unconsolidated joint ventures
	PREI ® Joint Venture
	On March 5, 2014, we contributed the 636 Pierce Street property, which was acquired in December 2013, to the PREI® Joint Venture that was initially formed in September 2013.  The property was valued at approximately $40.4 million and subject to $26.1 million in debt, which the joint venture assumed.  PREI® contributed approximately $11.4 million in cash for their 80% share of the net asset value of $14.3 million.  Subsequent to the closing, the joint venture refinanced the existing debt with $23.0 million drawn from the joint venture’s bank facility.  Including the refinance costs, PREI® contributed $17.5 million for the 636 Pierce Street property, bringing their contributed capital in the joint venture to $164.8 million.
	The transaction produced a $1.9 million gain for the Company representing the difference between the $11.4 million of cash proceeds received by the Company for their 80% share of the net asset less the Company’s book value.
	Differences between the Company’s investment in the joint venture and the amount of the underlying equity in net assets of the joint venture are due to basis differences resulting from the Company’s equity investment recorded at its historical basis versus the fair value of the Company’s contributed interest in the joint venture. Our proportionate share of the earnings or losses related to this unconsolidated joint venture is reflected as equity in earnings of unconsolidated joint ventures on the accompanying consolidated income statements.

Acquired_Intangible_Assets_And

Acquired Intangible Assets And Liabilities	3 Months Ended
	Mar. 31, 2014
Acquired Intangible Assets And Liabilities	'
	5. Acquired Intangible Assets and Liabilities
	The following summarizes our acquired intangible assets (acquired in-place lease value and acquired above-market lease value) and intangible liabilities (acquired below-market lease value) as of March 31, 2014 and December 31, 2013.
		Balance as of
	(Amounts in thousands)	31-Mar-14		31-Dec-13
	Acquired in-place lease value:
	Gross amount	$            721,961		$           725,458
	Accumulated amortization	-438,789		-423,549
	Net	$            283,172		$           301,909
	Acquired above-market leases:
	Gross amount	$            133,064		$           132,750
	Accumulated amortization	-83,543		-80,486
	Net	$               49,521		$             52,264
	Acquired below-market leases:
	Gross amount	$            290,365		$           291,638
	Accumulated amortization	-167,213		-161,369
	Net	$            123,152		$           130,269
	Amortization of acquired below-market lease value, net of acquired above-market lease value, resulted in an increase to rental revenues of $2.8 million and $3.0 million for the three months ended March 31, 2014 and 2013, respectively. The expected average remaining lives for acquired below-market leases and acquired above-market leases is 6.5 years and 4.3 years, respectively, as of March 31, 2014. Estimated annual amortization of acquired below-market lease value, net of acquired above-market lease value, for each of the five succeeding years and thereafter, commencing April 1, 2014 is as follows:
	(Amounts in thousands)
	Remainder of 2014		$           7,171
	2015		8,862
	2016		7,540
	2017		6,038
	2018		4,419
	Thereafter		39,601
	Total		$         73,631
	Amortization of acquired in-place lease value (a component of depreciation and amortization expense) was $15.1 million and $14.9 million for the three months ended March 31, 2014 and 2013, respectively. The expected average amortization period for acquired in-place lease value is 6.4 years as of March 31, 2014. The weighted average remaining contractual life for acquired leases excluding renewals or extensions is 5.0 years as of March 31, 2014. Estimated annual amortization of acquired in-place lease value for each of the five succeeding years and thereafter, commencing April 1, 2014 is as follows:
	(Amounts in thousands)
	Remainder of 2014		$         39,761
	2015		44,295
	2016		41,180
	2017		28,363
	2018		25,997
	Thereafter		103,576
	Total		$       283,172
Digital Realty Trust, L.P. [Member]	'
Acquired Intangible Assets And Liabilities	'
	5. Acquired Intangible Assets and Liabilities
	The following summarizes our acquired intangible assets (acquired in-place lease value and acquired above-market lease value) and intangible liabilities (acquired below-market lease value) as of March 31, 2014 and December 31, 2013.
		Balance as of
	(Amounts in thousands)	31-Mar-14		31-Dec-13
	Acquired in-place lease value:
	Gross amount	$            721,961		$           725,458
	Accumulated amortization	-438,789		-423,549
	Net	$            283,172		$           301,909
	Acquired above-market leases:
	Gross amount	$            133,064		$           132,750
	Accumulated amortization	-83,543		-80,486
	Net	$               49,521		$             52,264
	Acquired below-market leases:
	Gross amount	$            290,365		$           291,638
	Accumulated amortization	-167,213		-161,369
	Net	$            123,152		$           130,269
	Amortization of acquired below-market lease value, net of acquired above-market lease value, resulted in an increase to rental revenues of $2.8 million and $3.0 million for the three months ended March 31, 2014 and 2013, respectively. The expected average remaining lives for acquired below-market leases and acquired above-market leases is 6.5 years and 4.3 years, respectively, as of March 31, 2014. Estimated annual amortization of acquired below-market lease value, net of acquired above-market lease value, for each of the five succeeding years and thereafter, commencing April 1, 2014 is as follows:
	(Amounts in thousands)
	Remainder of 2014		$           7,171
	2015		8,862
	2016		7,540
	2017		6,038
	2018		4,419
	Thereafter		39,601
	Total		$         73,631
	Amortization of acquired in-place lease value (a component of depreciation and amortization expense) was $15.1 million and $14.9 million for the three months ended March 31, 2014 and 2013, respectively. The expected average amortization period for acquired in-place lease value is 6.4 years as of March 31, 2014. The weighted average remaining contractual life for acquired leases excluding renewals or extensions is 5.0 years as of March 31, 2014. Estimated annual amortization of acquired in-place lease value for each of the five succeeding years and thereafter, commencing April 1, 2014 is as follows:
	(Amounts in thousands)
	Remainder of 2014		$         39,761
	2015		44,295
	2016		41,180
	2017		28,363
	2018		25,997
	Thereafter		103,576
	Total		$       283,172

Debt_Of_The_Company

Debt Of The Company	3 Months Ended
	Mar. 31, 2014
Debt [Abstract]	'
Debt Of The Company	'
	6. Debt of the Company
	In this Note 6, the “Company” refers only to Digital Realty Trust, Inc. and not to any of its subsidiaries.
	The Company itself does not have any indebtedness. All debt is held directly or indirectly by the Operating Partnership.
	Guarantee of Debt
	The Company guarantees the Operating Partnership’s obligations with respect to its 5.50% exchangeable senior debentures due 2029 (2029 Debentures), 4.50% notes due 2015 (2015 Notes), 5.875% notes due 2020 (2020 Notes), 5.250% notes due 2021 (2021 Notes), 3.625% notes due 2022 (2022 Notes) and its unsecured senior notes sold to Prudential Investment Management, Inc. and certain of its affiliates pursuant to the Amended and Restated Note Purchase and Private Shelf Agreement, as amended, which we refer to as the Prudential shelf facility. The Company and the Operating Partnership guarantee the obligations of Digital Stout Holding, LLC, a wholly owned subsidiary of the Operating Partnership, with respect to its 4.250% notes due 2025 (2025 Notes). The Company is also the guarantor of the Operating Partnership’s and its subsidiary borrowers’ obligations under the global revolving credit facility and unsecured term loan.

Debt_Of_The_Operating_Partners

Debt Of The Operating Partnership (Digital Realty Trust, L.P. [Member])	3 Months Ended
	Mar. 31, 2014
Digital Realty Trust, L.P. [Member]	'
Debt Of The Operating Partnership	'
	7. Debt of the Operating Partnership
	A summary of outstanding indebtedness of the Operating Partnership as of March 31, 2014 and December 31, 2013 is as follows (in thousands):
	Indebtedness		Interest Rate at			Maturity Date		Principal Outstanding			Principal Outstanding
			31-Mar-14					31-Mar-14			31-Dec-13
	Global revolving credit facility		Various	-1		Nov. 3, 2017		$                  790,500	-2		$                  724,668	-2
	Unsecured term loan		Various	(3)(8)		Apr. 16, 2017		$               1,026,891	-4		$               1,020,984	-4
	Unsecured senior notes:
	Prudential Shelf Facility:
	Series C		9.68%			Jan. 6, 2016		25,000			25,000
	Series D		4.57%			Jan. 20, 2015		50,000			50,000
	Series E		5.73%			Jan. 20, 2017		50,000			50,000
	Series F		4.50%			Feb. 3, 2015		17,000			17,000
	Total Prudential Shelf Facility							142,000			142,000
	Senior Notes:
	4.50% notes due 2015		4.50%			Jul. 15, 2015		375,000			375,000
	5.875% notes due 2020		5.88%			Feb. 1, 2020		500,000			500,000
	5.25% notes due 2021		5.25%			Mar. 15, 2021		400,000			400,000
	3.625% notes due 2022		3.62%			Oct. 1, 2022		300,000			300,000
	4.25% notes due 2025		4.25%			Jan. 17, 2025		666,480	-9		662,280	-9
	Unamortized discounts							-14,632			-15,048
	Total senior notes, net of discount							2,226,848			2,222,232
	Total unsecured senior notes, net of discount							2,368,848			2,364,232
	Exchangeable senior debentures:
	5.50% exchangeable senior debentures due 2029		5.50%			Apr. 15, 2029	-5	266,400			266,400
	Total exchangeable senior debentures							266,400			266,400
	Indebtedness		Interest Rate at			Maturity Date		Principal Outstanding			Principal Outstanding
			31-Mar-14					31-Mar-14			31-Dec-13
	Mortgage loans:
	Secured Term Debt (6)(7)		5.65%			Nov. 11, 2014		$                  132,157			$                  132,966
	200 Paul Avenue 1-4 (7)		5.74%			Oct. 8, 2015		70,198			70,713
	2045 & 2055 LaFayette Street (7)		5.93%			Feb. 6, 2017		63,351			63,623
	34551 Ardenwood Boulevard 1-4 (7)		5.95%			Nov. 11, 2016		51,942			52,152
	1100 Space Park Drive (7)		5.89%			Dec. 11, 2016		51,904			52,115
	600 West Seventh Street		5.80%			Mar. 15, 2016		49,127			49,548
	150 South First Street (7)		6.30%			Feb. 6, 2017		49,896			50,097
	2334 Lundy Place (7)		5.96%			Nov. 11, 2016		37,778			37,930
	Cressex 1 (10)		5.68%			Oct. 16, 2014		28,636	-9		28,583	-9
	636 Pierce Street		5.27%			Apr. 15, 2023		-	-11		26,327
	8025 North Interstate 35		4.09%			Mar. 6, 2016		6,251			6,314
	Manchester Technopark (10)		5.68%			Oct. 16, 2014		8,712	-9		8,695	-9
	731 East Trade Street		8.22%			Jul. 1, 2020		4,101			4,186
	Unamortized net premiums							689			2,359
	Total mortgage loans, net of premiums							554,742			585,608
	Total indebtedness							$               5,007,381			$               4,961,892
		-1		The interest rate for borrowings under the global revolving credit facility equals the applicable index plus a margin of 110 basis points, which is based on the credit rating of our long-term debt. An annual facility fee of 20 basis points, which is based on the credit rating of our long-term debt, is due and payable quarterly on the total commitment amount of the facility.  Two six-month extensions are available, which we may exercise if certain conditions are met.
		-2		Balances as of March 31, 2014 and December 31, 2013 are as follows (balances, in thousands):
	Denomination of Draw		Balance as of March 31, 2014			Weighted-average interest rate		Balance as of December 31, 2013			Weighted-average interest rate
	Floating Rate Borrowing (a)
	U.S. dollar ($)		$              397,000			1.25%		$                466,000			1.27%
	British pound sterling (£)		126,631	(c)		1.60%		-			-
	Euro (€)		74,353	(c)		1.33%		78,335	(d)		1.33%
	Australian dollar (AUD)		73,185	(c)		3.73%		67,212	(d)		3.70%
	Hong Kong dollar (HKD)		66,677	(c)		1.31%		57,390	(d)		1.31%
	Japanese yen (JPY)		13,174	(c)		1.20%		12,858	(d)		1.21%
	Canadian dollar (CAD)		34,480	(c)		2.32%		14,873	(d)		2.32%
	Total		$              785,500			1.60%		$                696,668			1.53%
	Base Rate Borrowing (b)
	U.S. dollar ($)		$                  5,000			3.35%		$                  28,000			3.35%
	Total borrowings		$              790,500			1.61%		$                724,668			1.60%
		(a)		The interest rates for floating rate borrowings under the global revolving credit facility equal the applicable index plus a margin of 110 basis points, which is based on the credit rating of our long-term debt.
		(b)		The interest rates for base rate borrowings under the global revolving credit facility equal the U.S. Prime Rate plus a margin of 10 basis points, which is based on the credit rating of our long-term debt.
		(c)		Based on exchange rates of $1.67 to £1.00, $1.38 to €1.00, $0.93 to 1.00 AUD, $0.13 to 1.00 HKD, $0.01 to 1.00 JPY and $0.90 to 1.00 CAD, respectively, as of March 31, 2014.
		(d)		Based on exchange rates of $1.37 to €1.00, $0.89 to 1.00 AUD, $0.13 to 1.00 HKD, $0.01 to 1.00 JPY and $0.94 to 1.00 CAD, respectively, as of December 31, 2013.
	-3		Interest rates are based on our senior unsecured debt ratings and are 120 basis points over the applicable index for floating rate advances.  Two six-month extensions are available, which we may exercise if certain conditions are met.
	-4		Balances as of March 31, 2014 and December 31, 2013 are as follows (balances, in thousands):
Denomination of Draw		Balance as of March 31, 2014			Weighted-average interest rate		Balance as of December 31, 2013			Weighted-average interest rate
U.S. dollar ($)		$               410,905			1.36%	(b)	$               410,905			1.37%	(d)
Singapore dollar (SGD)		181,710	(a)		1.42%	(b)	180,918	(c)		1.40%	(d)
British pound sterling (£)		201,485	(a)		1.72%		200,216	(c)		1.72%
Euro (€)		137,001	(a)		1.43%		136,743	(c)		1.43%
Australian dollar (AUD)		95,790	(a)		3.82%		92,202	(c)		3.78%
Total		$            1,026,891			1.68%	(b)	$            1,020,984			1.67%	(d)
	(a)		Based on exchange rates of $0.80 to 1.00 SGD, $1.67 to £1.00, $1.38 to €1.00 and $0.93 to 1.00 AUD, respectively, as of March 31, 2014.
	(b)		As of March 31, 2014, the weighted-average interest rate reflecting interest rate swaps was 1.92% (U.S. dollar), 2.00% (Singapore dollar) and 2.01% (Total).  See Note 14 for further discussion on interest rate swaps.
	(c)		Based on exchange rates of $0.79 to 1.00 SGD, $1.66 to £1.00, $1.37 to €1.00 and $0.89 to 1.00 AUD, respectively, as of December 31, 2013.
	(d)		As of December 31, 2013, the weighted-average interest rate reflecting interest rate swaps was 1.92% (U.S. dollar), 2.00% (Singapore dollar) and 2.00% (Total).  See Note 14 for further discussion on interest rate swaps.
	-5		The 2029 Debentures were redeemed in April 2014.
	-6		This amount represents six mortgage loans secured by our interests in 36 NE 2nd Street, 3300 East Birch Street, 100 & 200 Quannapowitt Parkway, 300 Boulevard East, 4849 Alpha Road, and 11830 Webb Chapel Road. Each of these loans is cross-collateralized by the six properties.
	-7		The respective borrower’s assets and credit are not available to satisfy the debts and other obligations of affiliates or any other person.
	-8		We have entered into interest rate swap agreements as a cash flow hedge for interest generated by the U.S. dollar and Singapore dollar tranches of the unsecured term loan. See note 14 for further information.
	-9		Based on exchange rate of $1.67 to £1.00 as of March 31, 2014 and $1.66 to £1.00 as of December 31, 2013.
	-10		These loans are also secured by a £7.8 million letter of credit. These loans are cross-collateralized by the two properties.
	-11		On March 5, 2014, we contributed this property to our joint venture with an investment fund managed by Prudential Real Estate Investors which was formed in September 2013. Also on March 5, 2014, the joint venture assumed the debt and repaid in full the outstanding balance of $26.1 million on the mortgage loan.
Global Revolving Credit Facility
On August 15, 2013, the Operating Partnership refinanced its revolving credit facility, which we refer to as the global revolving credit facility, increasing its total borrowing capacity to $2.0 billion from $1.8 billion. The global revolving credit facility has an accordion feature that would enable us to increase the borrowing capacity of the credit facility to $2.55 billion, subject to the receipt of lender commitments and other conditions precedent. The refinanced facility matures on November 3, 2017, with two six-month extension options. The interest rate for borrowings under the expanded facility equals the applicable index plus a margin which is based on the credit rating of our long-term debt and is currently 110 basis points. An annual facility fee on the total commitment amount of the facility, based on the credit rating of our long-term debt and currently 20 basis points, is payable quarterly. Funds may be drawn in U.S., Canadian, Singapore, Australian and Hong Kong dollars, as well as Euro, British pound sterling, Swiss franc, Japanese yen and Mexican peso denominations. As of March 31, 2014, borrowings under the global revolving credit facility bore interest at an overall blended rate of 1.61% comprised of 1.25% (U.S. dollars), 1.60% (British pound sterling), 1.33% (Euros), 3.73% (Australian dollars), 1.31% (Hong Kong dollars), 1.20% (Japanese yen) and 2.32% (Canadian dollars). The interest rates are based on 1-month LIBOR, 1-month GBP LIBOR, 1-month EURIBOR, 1-month BBR, 1-month HIBOR, 1-month JPY LIBOR and 1-month CDOR, respectively, plus a margin of 1.10%. The facility also bore a base borrowing rate of 3.35% (USD) which is based on U.S. Prime Rate plus a margin of 0.10%. We have used and intend to use available borrowings under the global revolving credit facility to acquire additional properties, fund development opportunities and to provide for working capital and other corporate purposes, including potentially for the repurchase, redemption or retirement of outstanding debt or equity securities. As of March 31, 2014, we have capitalized approximately $18.0 million of financing costs related to the global revolving credit facility. As of March 31, 2014, approximately $790.5 million was drawn under this facility and $23.1 million of letters of credit were issued.
The global revolving credit facility contains various restrictive covenants, including limitations on our ability to incur additional indebtedness, make certain investments or merge with another company, and requirements to maintain financial coverage ratios, including with respect to unencumbered assets. In addition, the global revolving credit facility restricts Digital Realty Trust, Inc. from making distributions to its stockholders, or redeeming or otherwise repurchasing shares of its capital stock, after the occurrence and during the continuance of an event of default, except in limited circumstances including as necessary to enable Digital Realty Trust, Inc. to maintain its qualification as a REIT and to minimize the payment of income or excise tax. As of March 31, 2014, we were in compliance with all of such covenants.
Unsecured Term Loan
On August 15, 2013, we refinanced the senior unsecured multi-currency term loan facility, increasing its total borrowing capacity to $1.0 billion from $750.0 million, and pursuant to the accordion feature total commitments can be increased up to $1.1 billion, subject to the receipt of lender commitments and other conditions precedent. The facility matures on April 16, 2017, with two six-month extension options. Interest rates are based on our senior unsecured debt ratings and are currently 120 basis points over the applicable index for floating rate advances. Funds may be drawn in U.S, Singapore and Australian dollars, as well as Euro and British pound sterling denominations with the option to add Hong Kong dollars and Japanese yen upon an accordion exercise. Based on exchange rates in effect at March 31, 2014, the balance outstanding is approximately $1,026.9 million. We have used borrowings under the term loan for acquisitions, repayment of indebtedness, development, working capital and general corporate purposes. The covenants under this loan are consistent with our global revolving credit facility and, as of March 31, 2014, we were in compliance with all of such covenants. As of March 31, 2014, we have capitalized approximately $8.4 million of financing costs related to the unsecured term loan.
Exchangeable Senior Debentures
5.50% Exchangeable Senior Debentures due 2029
On April 20, 2009, the Operating Partnership issued $266.4 million of its 5.50% exchangeable senior debentures due April 15, 2029 (the 2029 Debentures). Costs incurred to issue the 2029 Debentures were approximately $7.8 million. These costs were amortized over a period of five years, which represented the estimated term of the 2029 Debentures, and are included in deferred financing costs, net in the condensed consolidated balance sheet. The 2029 Debentures were general unsecured senior obligations of the Operating Partnership, ranked equally in right of payment with all other senior unsecured indebtedness of the Operating Partnership and were fully and unconditionally guaranteed by Digital Realty Trust, Inc.
Interest was payable on October 15 and April 15 of each year beginning October 15, 2009 until the maturity date of April 15, 2029. The 2029 Debentures bore interest at 5.50% per annum and were exchangeable for shares of Digital Realty Trust, Inc. common stock at an exchange rate that was initially 23.2558 shares per $1,000 principal amount of 2029 Debentures. The exchange rate on the 2029 Debentures was subject to adjustment for certain events, including, but not limited to, certain dividends on Digital Realty Trust, Inc. common stock in excess of $0.33 per share per quarter (the “reference dividend”). Effective December 11, 2013, the exchange rate had been adjusted to 25.5490 shares per $1,000 principal amount of 2029 Debentures as a result of the aggregate dividends in excess of the reference dividend that Digital Realty Trust, Inc. declared and paid on its common stock beginning with the quarter ended September 30, 2013 and through the quarter ended December 31, 2013. Due to the fact that the exchange feature for the 2029 Debentures had to be settled in the common stock of Digital Realty Trust, Inc., accounting guidance on convertible debt instruments that requires the principal amount to be settled in cash upon conversion did not apply.
On March 17, 2014, we commenced an offer to repurchase, at the option of each holder, any and all of the outstanding 2029 Debentures at a price equal to 100% of the principal amount, as required by the terms of the indenture governing the 2029 Debentures. The repurchase offer expired on April 11, 2014. No 2029 Debentures were repurchased pursuant to this offer.  On March 17, 2014, we also distributed a Notice of Redemption to the holders of the 2029 Debentures that the Operating Partnership intended to redeem all of the outstanding 2029 Debentures, pursuant to its option under the indenture governing the 2029 Debentures, on April 18, 2014, at a price equal to 100% of the principal amount, plus accrued and unpaid interest thereon up to the redemption date. In connection with the redemption, holders of the 2029 Debentures had the right to exchange their 2029 Debentures on or prior to April 16, 2014.  The 2029 Debentures not surrendered pursuant to the repurchase offer on or prior to April 11, 2014, or for exchange on or prior to April 16, 2014, were redeemed on April 18, 2014.
In connection with the redemption, at the request of the holders that exercised their exchange right pursuant to the terms of the 2029 Debentures, we issued 6,734,938 restricted shares of Digital Realty Trust, Inc. common stock in exchange for approximately $261.2 million in aggregate principal amount of the 2029 Debentures.  On April 18, 2014, the Operating Partnership redeemed for cash approximately $5.2 million in aggregate principal amount of the 2029 Debentures pursuant to its option under the indenture governing the 2029 Debentures at a price equal to 100% of the principal amount plus accrued and unpaid interest thereon up to the redemption date.
The table below summarizes our debt maturities and principal payments as of March 31, 2014 (in thousands):
		Global Revolving Credit Facility (1)		Unsecured Term Loan (1)		Prudential Shelf Facility	Senior Notes		Exchangeable Senior Debentures (2)		Mortgage Loans (3)	Total
												Debt
Remainder of 2014		$                      -		$                  -		$                -	$               -		$          266,400		$       175,817	$      442,217
2015		-		-		67,000	375,000		-		75,493	517,493
2016		-		-		25,000	-		-		191,979	216,979
2017		790,500		1,026,891		50,000	-		-		108,395	1,975,786
2018		-		-		-	-		-		593	593
Thereafter		-		-		-	1,866,480		-		1,776	1,868,256
Subtotal		$          790,500		$   1,026,891		$     142,000	$		$          266,400		$       554,053	$   5,021,324
							2,241,480
Unamortized discount		-		-		-	-14,632		-		-	-14,632
Unamortized premium		-		-		-	-		-		689	689
Total		$          790,500		$   1,026,891		$     142,000	$		$          266,400		$       554,742	$   5,007,381
							2,226,848
	-1		Subject to two six-month extension options exercisable by us. The bank group is obligated to grant the extension options provided we give proper notice, we make certain representations and warranties and no default exists under the global revolving credit facility and the unsecured term loan, as applicable.
	-2		The 2029 Debentures were redeemed in April 2014.
	-3		Our mortgage loans are generally non-recourse to us, subject to carve-outs for specified actions by us or specified undisclosed environmental liabilities. As of March 31, 2014, we provided partial letter of credit support with respect to approximately $37.3 million of the outstanding mortgage indebtedness (based on exchange rates as of March 31, 2014).

Income_Per_Share

Income Per Share	3 Months Ended
	Mar. 31, 2014
Income Per Share [Abstract]	'
Income Per Share	'
	8. Income per Share
	The following is a summary of basic and diluted income per share (in thousands, except share and per share amounts):
		Three Months Ended March 31,
		2014	2013
	Net income available to common stockholders	$             34,186	$            42,657
	Weighted average shares outstanding—basic	128,535,995	126,445,285
	Potentially dilutive common shares:
	Stock options	51,909	70,877
	Series H Cumulative Redeemable Preferred Stock	388,340	-
	Unvested incentive units	160,717	222,177
	Weighted average shares outstanding—diluted	129,136,961	126,738,339
	Income per share:
	Basic	$                 0.27	$                0.34
	Diluted	$                 0.26	$                0.34
	We have excluded the following potentially dilutive securities in the calculations above as they would be antidilutive or not dilutive:
		Three Months Ended March 31,
		2014	2013
	Weighted average of Operating Partnership common	2,606,669	2,442,756
	units not owned by Digital Realty Trust, Inc.
	Potentially dilutive 2029 Debentures	6,806,254	6,590,470
	Potentially dilutive Series D Cumulative Convertible	-	1,909,146
	Preferred Stock
	Potentially dilutive Series E Cumulative Redeemable	5,674,269	4,381,703
	Preferred Stock
	Potentially dilutive Series F Cumulative Redeemable	3,598,608	2,778,866
	Preferred Stock
	Potentially dilutive Series G Cumulative Redeemable	4,920,508	-
	Preferred Stock
		23,606,308	18,102,941

Income_Per_Unit

Income Per Unit (Digital Realty Trust, L.P. [Member])	3 Months Ended
	Mar. 31, 2014
Digital Realty Trust, L.P. [Member]	'
Income Per Unit	'
	9. Income per Unit
	The following is a summary of basic and diluted income per unit (in thousands, except unit and per unit amounts):
		Three Months Ended March 31,
		2014	2013
	Net income available to common unitholders	$            34,879	$            43,481
	Weighted average units outstanding--basic	131,142,664	128,888,041
	Potentially dilutive common units:
	Stock options	51,909	70,877
	Series H Cumulative Redeemable Preferred Units	388,340	-
	Unvested incentive units	160,717	222,177
	Weighted average units outstanding--diluted	131,743,630	129,181,095
	Income per unit:
	Basic	$                0.27	$                0.34
	Diluted	$                0.26	$                0.34
	We have excluded the following potentially dilutive securities in the calculations above as they would be antidilutive or not dilutive:
		Three Months Ended March 31,
		2014	2013
	Potentially dilutive 2029 Debentures	6,806,254	6,590,470
	Potentially dilutive Series D Cumulative Convertible	-	1,909,146
	Preferred Units
	Potentially dilutive Series E Cumulative Redeemable	5,674,269	4,381,703
	Preferred Units
	Potentially dilutive Series F Cumulative Redeemable	3,598,608	2,778,866
	Preferred Units
	Potentially dilutive Series G Cumulative Redeemable	4,920,508	-
	Preferred Units
		20,999,639	15,660,185

Income_Taxes

Income Taxes	3 Months Ended
	Mar. 31, 2014
Income Taxes	'
	10. Income Taxes
	Digital Realty Trust, Inc. has elected to be treated and believes that it has been organized and has operated in a manner that has enabled it to qualify as a REIT for federal income tax purposes. As a REIT, Digital Realty Trust, Inc. is generally not subject to corporate level federal income taxes on earnings distributed currently to its stockholders. Since inception, Digital Realty Trust, Inc. has distributed at least 100% of its taxable income annually and intends to do so for the tax year ending December 31, 2014. As such, no provision for federal income taxes has been included in the accompanying consolidated financial statements for the three months ended March 31, 2014 and 2013.
	The Operating Partnership is a partnership and is not required to pay federal income tax. Instead, taxable income is allocated to its partners, who include such amounts on their federal income tax returns. As such, no provision for federal income taxes has been included in the Operating Partnership’s accompanying consolidated financial statements.
	We have elected taxable REIT subsidiary (“TRS”) status for some of our consolidated subsidiaries. In general, a TRS may provide services that would otherwise be considered impermissible for REITs to provide and may hold assets that REITs cannot hold directly. Income taxes for TRS entities were accrued, as necessary, for the three months ended March 31, 2014 and 2013.
	For our TRS entities and foreign subsidiaries that are subject to U.S. federal, state and foreign income taxes, deferred tax assets and liabilities are established for temporary differences between the financial reporting basis and the tax basis of assets and liabilities at the enacted tax rates expected to be in effect when the temporary differences reverse. A valuation allowance for deferred tax assets is provided if we believe it is more likely than not that the deferred tax asset may not be realized, based on available evidence at the time the determination is made. An increase or decrease in the valuation allowance that results from the change in circumstances that causes a change in our judgment about the realizability of the related deferred tax asset is included in income. Deferred tax assets (net of valuation allowance) and liabilities for our TRS entities and foreign subsidiaries were accrued, as necessary, for the three months ended March 31, 2014 and 2013.   As of March 31, 2014, we had a net deferred tax liability of approximately $148.4 million primarily related to our foreign properties.  The majority of our net deferred tax liability relates to differences between tax basis and book basis of the assets acquired in the Sentrum Portfolio acquisition during 2012.
Digital Realty Trust, L.P. [Member]	'
Income Taxes	'
	10. Income Taxes
	Digital Realty Trust, Inc. has elected to be treated and believes that it has been organized and has operated in a manner that has enabled it to qualify as a REIT for federal income tax purposes. As a REIT, Digital Realty Trust, Inc. is generally not subject to corporate level federal income taxes on earnings distributed currently to its stockholders. Since inception, Digital Realty Trust, Inc. has distributed at least 100% of its taxable income annually and intends to do so for the tax year ending December 31, 2014. As such, no provision for federal income taxes has been included in the accompanying consolidated financial statements for the three months ended March 31, 2014 and 2013.
	The Operating Partnership is a partnership and is not required to pay federal income tax. Instead, taxable income is allocated to its partners, who include such amounts on their federal income tax returns. As such, no provision for federal income taxes has been included in the Operating Partnership’s accompanying consolidated financial statements.
	We have elected taxable REIT subsidiary (“TRS”) status for some of our consolidated subsidiaries. In general, a TRS may provide services that would otherwise be considered impermissible for REITs to provide and may hold assets that REITs cannot hold directly. Income taxes for TRS entities were accrued, as necessary, for the three months ended March 31, 2014 and 2013.
	For our TRS entities and foreign subsidiaries that are subject to U.S. federal, state and foreign income taxes, deferred tax assets and liabilities are established for temporary differences between the financial reporting basis and the tax basis of assets and liabilities at the enacted tax rates expected to be in effect when the temporary differences reverse. A valuation allowance for deferred tax assets is provided if we believe it is more likely than not that the deferred tax asset may not be realized, based on available evidence at the time the determination is made. An increase or decrease in the valuation allowance that results from the change in circumstances that causes a change in our judgment about the realizability of the related deferred tax asset is included in income. Deferred tax assets (net of valuation allowance) and liabilities for our TRS entities and foreign subsidiaries were accrued, as necessary, for the three months ended March 31, 2014 and 2013.   As of March 31, 2014, we had a net deferred tax liability of approximately $148.4 million primarily related to our foreign properties.  The majority of our net deferred tax liability relates to differences between tax basis and book basis of the assets acquired in the Sentrum Portfolio acquisition during 2012.

Equity_And_Accumulated_Other_C

Equity And Accumulated Other Comprehensive Loss, Net	3 Months Ended
	Mar. 31, 2014
Equity And Accumulated Other Comprehensive Income (Loss), Net [Abstract]	'
Equity And Accumulated Other Comprehensive Income (Loss), Net	'
	11. Equity and Accumulated Other Comprehensive Income (Loss), Net
	(a) Equity Distribution Agreements
	On June 29, 2011, Digital Realty Trust, Inc. entered into equity distribution agreements, which we refer to as the 2011 Equity Distribution Agreements, with each of Merrill Lynch, Pierce, Fenner & Smith Incorporated, Citigroup Global Markets Inc., Credit Suisse Securities (USA) LLC, Deutsche Bank Securities Inc. and Morgan Stanley & Co. LLC, or the Agents, under which it can issue and sell shares of its common stock having an aggregate offering price of up to $400.0 million from time to time through, at its discretion, any of the Agents as its sales agents. The sales of common stock made under the 2011 Equity Distribution Agreements will be made in “at the market” offerings as defined in Rule 415 of the Securities Act. To date, Digital Realty Trust, Inc. has generated net proceeds of approximately $342.7 million from the issuance of approximately 5.7 million common shares under the 2011 Equity Distribution Agreements at an average price of $60.35 per share after payment of approximately $3.5 million of commissions to the sales agents and before offering expenses.  No sales were made under the program during the three months ended March 31, 2014 and 2013. As of March 31, 2014, shares of common stock having an aggregate offering price of $53.8 million remained available for offer and sale under the program.
	(b) Redeemable Preferred Stock
	7.375% Series H Cumulative Redeemable Preferred Stock
	On March 26, 2014, Digital Realty Trust, Inc. issued 12,000,000 shares of its 7.375% series H cumulative redeemable preferred stock, or the series H preferred stock, for net proceeds of approximately $289.9 million. In addition, on April 7, 2014, Digital Realty Trust, Inc. issued an additional 600,000 shares of series H preferred stock pursuant to a partial exercise of the underwriters’ over-allotment option.  Also, on April 7, 2014, Digital Realty Trust, Inc. re-opened and issued an additional 2,000,000 shares of series H preferred stock.  Combined with the earlier issuances, Digital Realty Trust, Inc. issued 14,600,000 shares of its series H preferred stock, for net proceeds of approximately $353.2 million. Dividends are cumulative on the series H preferred stock from the date of original issuance in the amount of $1.84375 per share each year, which is equivalent to 7.375% of the $25.00 liquidation preference per share. Dividends on the series H preferred stock are payable quarterly in arrears. The first dividend payable on the series H preferred stock on June 30, 2014 will be a pro rata dividend from and including the original issue date to and including June 30, 2014 in the amount of $0.48655 per share. The series H preferred stock does not have a stated maturity date and is not subject to any sinking fund or mandatory redemption provisions. Upon liquidation, dissolution or winding up, the series H preferred stock will rank senior to Digital Realty Trust, Inc. common stock and rank on parity with Digital Realty Trust, Inc.’s series E cumulative redeemable preferred stock, series F cumulative redeemable preferred stock and series G cumulative redeemable preferred stock with respect to the payment of distributions and other amounts. Digital Realty Trust, Inc. is not allowed to redeem the series H preferred stock before March 26, 2019, except in limited circumstances to preserve its status as a REIT. On or after March 26, 2019, Digital Realty Trust, Inc. may, at its option, redeem the series H preferred stock, in whole or in part, at any time or from time to time, for cash at a redemption price of $25.00 per share, plus all accrued and unpaid dividends on such series H preferred stock up to but excluding the redemption date. Holders of the series H preferred stock generally have no voting rights except for limited voting rights if Digital Realty Trust, Inc. fails to pay dividends for six or more quarterly periods (whether or not consecutive) and in certain other circumstances. Upon the occurrence of specified changes of control, as a result of which neither Digital Realty Trust, Inc.’s common stock nor the common securities of the acquiring or surviving entity (or American Depositary Receipts representing such securities) is listed on the New York Stock Exchange, the NYSE MKT, LLC or the NASDAQ Stock Market or listed or quoted on a successor exchange or quotation system, each holder of series H preferred stock will have the right (unless, prior to the change of control conversion date specified in the Articles Supplementary governing the series H preferred stock, Digital Realty Trust, Inc. has provided or provides notice of its election to redeem the series H preferred stock) to convert some or all of the series H preferred stock held by it into a number of shares of Digital Realty Trust, Inc.’s common stock per share of series H preferred stock to be converted equal to the lesser of:
		•		the quotient obtained by dividing (i) the sum of the $25.00 liquidation preference plus the amount of any accrued and unpaid dividends to, but not including, the change of control conversion date (unless the change of control conversion date is after a record date for a series H preferred stock dividend payment and prior to the corresponding series H preferred stock dividend payment date, in which case no additional amount for such accrued and unpaid dividend will be included in this sum) by (ii) the common stock price specified in the Articles Supplementary governing the series H preferred stock; and
		•		0.9632, or the share cap, subject to certain adjustments;
	subject, in each case, to provisions for the receipt of alternative consideration as described in the Articles Supplementary governing the series H preferred stock. Except in connection with specified change of control transactions, the series H preferred stock is not convertible into or exchangeable for any other property or securities of Digital Realty Trust, Inc.
	(c) Noncontrolling Interests in Operating Partnership
	Noncontrolling interests in the Operating Partnership relate to the interests that are not owned by Digital Realty Trust, Inc. The following table shows the ownership interest in the Operating Partnership as of March 31, 2014 and December 31, 2013:
			31-Mar-14					31-Dec-13
			Number of units		Percentage of total			Number of units		Percentage of total
	Digital Realty Trust, Inc.		128,606,462		97.6	%		128,455,350		97.7	%
	Noncontrolling interests consist of:
	Common units held by third parties		1,491,814		1.1			1,491,814		1.2
	Incentive units held by employees and		1,633,797		1.3			1,475,207		1.1
	directors (see note 13)
			131,732,073		100.0	%		131,422,371		100.0	%
	Limited partners have the right to require the Operating Partnership to redeem part or all of their common units for cash based on the fair market value of an equivalent number of shares of Digital Realty Trust, Inc. common stock at the time of redemption. Alternatively, Digital Realty Trust, Inc. may elect to acquire those common units in exchange for shares of Digital Realty Trust, Inc. common stock on a one-for-one basis, subject to adjustment in the event of stock splits, stock dividends, issuance of stock rights, specified extraordinary distributions and similar events. Pursuant to authoritative accounting guidance, Digital Realty Trust, Inc. evaluated whether it controls the actions or events necessary to issue the maximum number of shares that could be required to be delivered under the share settlement of the noncontrolling Operating Partnership common and incentive units. Based on the results of this analysis, we concluded that the common and incentive Operating Partnership units met the criteria to be classified within equity.
	The redemption value of the noncontrolling Operating Partnership common units and the vested incentive units was approximately $149.2 million and $124.1 million based on the closing market price of Digital Realty Trust, Inc. common stock on March 31, 2014 and December 31, 2013, respectively.
	The following table shows activity for the noncontrolling interests in the Operating Partnership for the three months ended March 31, 2014:
			Common Units		Incentive Units		Total
	As of December 31, 2013		1,491,814		1,475,207		2,967,021
	Conversion of incentive units held by employees and directors		-		-4,438		-4,438
	for shares of Digital Realty Trust, Inc. common stock (1)
	Cancellation of incentive units held by employees and directors		-		-18,773		-18,773
	Grant of incentive units to employees and directors		-		181,801		181,801
	As of March 31, 2014		1,491,814		1,633,797		3,125,611
		-1		This redemption was recorded as a reduction to noncontrolling interests in the Operating Partnership and an increase to common stock and additional paid in capital based on the book value per unit in the accompanying condensed consolidated balance sheet of Digital Realty Trust, Inc.
	(d) Dividends
	We have declared and paid the following dividends on our common and preferred stock for the three months ended March 31, 2014 (in thousands):
	Date dividend declared		Dividend payable date		Series E Preferred Stock (1)		Series F Preferred Stock (2)		Series G Preferred Stock (3)		Common Stock (4)
	11-Feb-14		31-Mar-14		$            5,031		$             3,023		$             3,672		$          106,743
					$            5,031		$             3,023		$             3,672		$          106,743
		-1		$1.750 annual rate of dividend per share.
		-2		$1.656 annual rate of dividend per share.
		-3		$1.469 annual rate of dividend per share.
		-4		$3.320 annual rate of dividend per share.
	Distributions out of Digital Realty Trust, Inc.’s current or accumulated earnings and profits are generally classified as dividends whereas distributions in excess of its current and accumulated earnings and profits, to the extent of a stockholder’s U.S. federal income tax basis in Digital Realty Trust, Inc.’s stock, are generally classified as a return of capital. Distributions in excess of a stockholder’s U.S. federal income tax basis in Digital Realty Trust, Inc.’s stock are generally characterized as capital gain. Cash provided by operating activities has generally been sufficient to fund all distributions, however, in the future we may also need to utilize borrowings under the global revolving credit facility to fund all or a portion of distributions.
	(e) Accumulated Other Comprehensive Income (Loss), Net
	The accumulated balances for each item within other comprehensive income, net are as follows (in thousands):
			Foreign currency translation adjustments		Cash flow hedge adjustments		Accumulated other comprehensive income, net
	Balance as of December 31, 2013		$                 11,745		$                 (1,054)		$                 10,691
	Net current period change		3,743		-1,316		2,427
	Reclassification to interest expense from		-		829		829
	interest rate swaps
	Balance as of March 31, 2014		$                 15,488		$                 (1,541)		$                 13,947

Capital_And_Accumulated_Other_

Capital And Accumulated Other Comprehensive Income (Loss) (Digital Realty Trust, L.P. [Member])	3 Months Ended
	Mar. 31, 2014
Digital Realty Trust, L.P. [Member]	'
Capital And Accumulated Other Comprehensive Income (Loss)	'
	12. Capital and Accumulated Other Comprehensive Income (Loss)
	(a) Redeemable Preferred Units
	7.375% Series H Cumulative Redeemable Preferred Units
	On March 26, 2014 and April 7, 2014, the Operating Partnership issued in the aggregate a total of 14,600,000 of its 7.375% series H cumulative redeemable preferred units, or series H preferred units, to Digital Realty Trust, Inc. (the General Partner) in conjunction with the General Partner’s issuance of an equivalent number of shares of its 7.375% series H cumulative redeemable preferred stock, or the series H preferred stock. Distributions are cumulative on the series H preferred units from the date of original issuance in the amount of $1.84375 per unit each year, which is equivalent to 7.375% of the $25.00 liquidation preference per unit. Distributions on the series H preferred units are payable quarterly in arrears. The first distribution payable on the series H preferred units on June 30, 2014 will be a pro rata distribution from and including the original issue date to and including June 30, 2014 in the amount of $0.48655 per unit. The series H preferred units do not have a stated maturity date and are not subject to any sinking fund. The Operating Partnership is required to redeem the series H preferred units in the event that the General Partner redeems the series H preferred stock. The General Partner is not allowed to redeem the series H preferred stock prior to March 26, 2019 except in limited circumstances to preserve the General Partner’s status as a REIT. On or after March 26, 2019, the General Partner may, at its option, redeem the series H preferred stock, in whole or in part, at any time or from time to time, for cash at a redemption price of $25.00 per share, plus all accrued and unpaid dividends on such series H preferred stock up to but excluding the redemption date. Upon liquidation, dissolution or winding up, the series H preferred units will rank senior to the Operating Partnership’s common units with respect to the payment of distributions and other amounts and rank on parity with the Operating Partnership’s series E cumulative redeemable preferred units, series F cumulative redeemable preferred units and series G cumulative redeemable preferred units. Except in connection with specified change of control transactions of the General Partner, the series H preferred units are not convertible into or exchangeable for any other property or securities of the Operating Partnership.
	(b) Allocations of Net Income and Net Losses to Partners
	Except for special allocations to holders of profits interest units described below in note 13(a) under the heading “Incentive Plan-Long-Term Incentive Units,” the Operating Partnership’s net income will generally be allocated to the General Partner to the extent of the accrued preferred return on its preferred units, and then to the General Partner and the Operating Partnership’s limited partners in accordance with the respective percentage interests in the common units issued by the Operating Partnership. Net loss will generally be allocated to the General Partner and the Operating Partnership’s limited partners in accordance with the respective common percentage interests in the Operating Partnership until the limited partner’s capital is reduced to zero and any remaining net loss would be allocated to the General Partner. However, in some cases, losses may be disproportionately allocated to partners who have guaranteed our debt. The allocations described above are subject to special allocations relating to depreciation deductions and to compliance with the provisions of Sections 704(b) and 704(c) of the Code, and the associated Treasury Regulations.
	(c) Partnership Units
	Limited partners have the right to require the Operating Partnership to redeem part or all of their common units for cash based on the fair market value of an equivalent number of shares of the General Partner’s common stock at the time of redemption. Alternatively, the General Partner may elect to acquire those common units in exchange for shares of the General Partner’s common stock on a one-for-one basis, subject to adjustment in the event of stock splits, stock dividends, issuance of stock rights, specified extraordinary distributions and similar events. Pursuant to authoritative accounting guidance, the Operating Partnership evaluated whether it controls the actions or events necessary to issue the maximum number of shares that could be required to be delivered under the share settlement of the limited partners’ common units and the vested incentive units. Based on the results of this analysis, the Operating Partnership concluded that the common and vested incentive Operating Partnership units met the criteria to be classified within capital.
	The redemption value of the limited partners’ common units and the vested incentive units was approximately $149.2 million and $124.1 million based on the closing market price of Digital Realty Trust, Inc.’s common stock on March 31, 2014 and December 31, 2013, respectively.
	(d) Distributions
	All distributions on the Operating Partnership’s units are at the discretion of Digital Realty Trust, Inc.’s board of directors. The Operating Partnership has declared and paid the following distributions on its common and preferred units for the three months ended March 31, 2014 (in thousands):
	Date distribution declared		Distribution payable date		Series E Preferred Units (1)	Series F Preferred Units (2)	Series G Preferred Units (3)	Common Units (4)
	11-Feb-14		31-Mar-14		$            5,031	$             3,023	$             3,672	$          109,378
					$            5,031	$             3,023	$             3,672	$          109,378
		-1		$1.750 annual rate of distribution per unit.
		-2		$1.656 annual rate of distribution per unit.
		-3		$1.469 annual rate of distribution per unit.
		-4		$3.320 annual rate of distribution per unit.
	(e) Accumulated Other Comprehensive Income
	The accumulated balances for each item within other comprehensive income are as follows (in thousands):
			Foreign currency translation adjustments		Cash flow hedge adjustments	Accumulated other comprehensive income
	Balance as of December 31, 2013		$                 10,235		$                 (1,778)	$                   8,457
	Net current period change		3,819		-1,343	2,476
	Reclassification to interest expense from		-		846	846
	interest rate swaps
	Balance as of March 31, 2014		$                 14,054		$                 (2,275)	$                 11,779

Incentive_Plan

Incentive Plan	3 Months Ended
	Mar. 31, 2014
Incentive Plan	'
	13. Incentive Plan
	Our Amended and Restated 2004 Incentive Award Plan (as defined below) provided for the grant of incentive awards to employees, directors and consultants. Awards issuable under the Amended and Restated 2004 Incentive Award Plan included stock options, restricted stock, dividend equivalents, stock appreciation rights, long-term incentive units, cash performance bonuses and other incentive awards. Only employees were eligible to receive incentive stock options under the Amended and Restated 2004 Incentive Award Plan. Initially, we had reserved a total of 4,474,102 shares of common stock for issuance pursuant to the 2004 Incentive Award Plan, subject to certain adjustments set forth in the 2004 Incentive Award Plan. On May 2, 2007, Digital Realty Trust, Inc.’s stockholders approved the First Amended and Restated Digital Realty Trust, Inc., Digital Services, Inc. and Digital Realty Trust, L.P. 2004 Incentive Award Plan (as amended, the Amended and Restated 2004 Incentive Award Plan). The Amended and Restated 2004 Incentive Award Plan increased the aggregate number of shares of stock which could have been issued or transferred under the plan by 5,000,000 shares to a total of 9,474,102 shares, and provided that the maximum number of shares of stock with respect to awards granted to any one participant during a calendar year was 1,500,000 shares and the maximum amount that could have been paid in cash during any calendar year with respect to any performance-based award not denominated in stock or otherwise for which the foregoing limitation would not be an effective limitation for purposes of Section 162(m) of the Code was $10.0 million.
	As of March 31, 2014, 2,007,813 shares of common stock or awards convertible into or exchangeable for common stock remained available for future issuance under the Amended and Restated 2004 Incentive Award Plan. Each long-term incentive unit, Class C Unit and Class D Unit issued under the Amended and Restated 2004 Incentive Award Plan counted as one share of common stock for purposes of calculating the limit on shares that could be issued under the Amended and Restated 2004 Incentive Award Plan and the individual award limit discussed above.
	On April 28, 2014, Digital Realty Trust, Inc. held its 2014 Annual Meeting of Stockholders, or 2014 Annual Meeting, at which the Company's stockholders approved the Digital Realty Trust, Inc., Digital Services, Inc., and Digital Realty Trust, L.P. 2014 Incentive Award Plan, or the 2014 Incentive Award Plan, which had been previously recommended for approval by the Company's Board of Directors. The 2014 Incentive Award Plan became effective as of the date of such stockholder approval.  The material features of the 2014 Stock Incentive Plan are described in our definitive Proxy Statement filed on March 19, 2014 in connection with the 2014 Annual Meeting, which description is incorporated herein by reference.
	(a) Long-Term Incentive Units
	Long-term incentive units, which are also referred to as profits interest units, may be issued to eligible participants for the performance of services to or for the benefit of the Operating Partnership. Long-term incentive units, whether vested or not, will receive the same quarterly per unit distributions as Operating Partnership common units, which equal per share distributions on Digital Realty Trust, Inc. common stock. Initially, long-term incentive units do not have full parity with common units with respect to liquidating distributions. If such parity is reached, vested long-term incentive units may be converted into an equal number of common units of the Operating Partnership at any time, and thereafter enjoy all the rights of common units of the Operating Partnership, including redemption rights. For a discussion of how long-term incentive units reach parity with common units, see note 13(a) to our consolidated financial statements for the fiscal year ended December 31, 2013, included in our Annual Report on 10-K, as amended, for the year ended December 31, 2013.
	Below is a summary of our long-term incentive unit activity for the three months ended March 31, 2014.
	Unvested Units		Units		Weighted-Average Grant Date Fair Value
	Unvested, beginning of period		440,951		$                      62.42
	Granted		181,801		52.15
	Vested		-289,564		59.13
	Cancelled or expired		-18,773		65.21
	Unvested, end of period		314,415		59.34
	During the three months ended March 31, 2013, certain employees were granted an aggregate of 95,316 long-term incentive units, which, in addition to a service condition, were subject to a performance condition that impacted the number of units which ultimately vested. The performance condition was based upon our achievement of the 2013 Core Funds From Operations, or CFFO, per share targets. Based on our 2013 CFFO per diluted share and unit, 75,105 of the 2013 long-term incentive units, net of forfeitures satisfied the performance condition. The grant date fair values, which equal the market price of Digital Realty Trust, Inc. common stock, are being expensed on a straight-line basis for service awards over four years, the current vesting period of the long-term incentive units. We expense the fair value of awards that contain a performance condition using an accelerated method with each vesting tranche valued as a separate award.
	The expense recorded for the three months ended March 31, 2014 and 2013 related to long-term incentive units was approximately $7.8 million and $2.2 million, respectively. We capitalized amounts relating to compensation expense of employees direct and incremental to construction and successful leasing activities of approximately $0.5 million and $0.4 million for the three months ended March 31, 2014 and 2013, respectively. Unearned compensation representing the unvested portion of the long-term incentive units totaled $14.3 million and $12.9 million as of March 31, 2014 and December 31, 2013, respectively. We expect to recognize this unearned compensation over the next 2.6 years on a weighted average basis.
	(b) 2014 Performance-Based Awards
	On February 11, 2014, the Compensation Committee of the Board of Directors of the Company approved the grant of performance-based Class D Units of the Operating Partnership and performance-based restricted stock units, or RSUs, covering shares of the Company’s common stock (collectively, the “awards”), under the Amended and Restated 2004 Incentive Award Plan to officers and employees of the Company.
	The awards, which were determined to contain a market condition, utilize total shareholder return, or TSR, over a three-year measurement period as the performance metric. Awards will vest based on the Company’s TSR relative to the MSCI US REIT Index, or RMS, over a three-year performance period commencing in January 2014 (or, if earlier, ending on the date on which a change in control of the Company occurs), or the Performance Period, subject to continued services.  Performance vesting is measured based on the difference between the Company’s TSR percentage and the TSR percentage of the RMS, or the RMS Relative Performance. In the event that the RMS Relative Performance during the Performance Period is achieved at the “threshold,” “target” or “high” level as set forth below, the awards will become performance-vested with respect to the percentage of Class D units, or RSUs, as applicable, set forth below:
	Level		RMS Relative Performance		Performance Vesting Percentage
			< 0 basis points		0%
	Threshold Level		0 points		25%
	Target Level		325 basis points		50%
	High Level		≥ 650 basis points		100%
	If the RMS Relative Performance falls between the levels specified above, the percentage of the award that will performance vest will be determined using straight-line linear interpolation between such levels.
	Following the completion of the Performance Period, performance-vested awards, if any, will vest 50% on February 27, 2017 and 50% on February 27, 2018, subject to continued employment through each applicable vesting date.
	Vesting will be accelerated, in full or on a pro rata basis, in the event of a change in control, termination of employment by the Company without cause, termination of employment by the award recipient for good reason, death, disability or retirement.
	The fair value of the 2014 grant of awards was measured using a Monte Carlo simulation to estimate the probability of the performance vesting conditions being satisfied.  The Company's achievement of the performance vesting conditions is contingent on its TSR over a three-year performance period, relative to the total shareholder return of the RMS.  The Monte Carlo simulation is a probabilistic technique based on the underlying theory of the Black-Scholes formula, which was run for 100,000 trials to determine the fair value of the awards.  For each trial, the payoff to an award is calculated at the settlement date and is then discounted to the grant date at a risk-free interest rate.  The total expected value of the awards on the grant date was determined by multiplying the average value per award over all trials by the number of awards granted.  Assumptions used in the valuation include expected stock price volatility of 33 percent and a risk-free interest rate of 0.67 percent.  The valuation was performed in a risk-neutral framework, so no assumption was made with respect to an equity risk premium.
	As of March 31, 2014, 645,484 performance-based Class D Units and 247,158 performance-based RSUs had been awarded to our executive officers and other employees. The fair value of these awards of approximately $17.1 million will be recognized as compensation expense on a straight-line basis over the expected service period of approximately four years. The unearned compensation as of March 31, 2014 was $13.6 million, net of cancellations. As of March 31, 2014, none of the above awards had vested. We recognized compensation expense related to these awards of $0.4 million in the three months ended March 31, 2014. We capitalized amounts relating to compensation expense of employees directly engaged in construction and leasing activities of $0.2 million for the three months ended March 31, 2014. If the market condition is not met, the unamortized amount will be recognized as an expense at that time.
	(c) Stock Options
	The following table summarizes the Amended and Restated 2004 Incentive Award Plan’s stock option activity for the period ended March 31, 2014:
		Period Ended
		31-Mar-14
		Shares	Weighted average exercise price
	Options outstanding, beginning of period	123,690	$              30.13
	Exercised	-917	41.73
	Cancelled / Forfeited	-	-
	Options outstanding, end of period	122,773	$              30.04
	Exercisable, end of period	122,773	$              30.04
	The following table summarizes information about stock options outstanding and exercisable as of March 31, 2014:
	Options outstanding and exercisable
	Exercise price	Number outstanding	Weighted average remaining contractual life (years)	Weighted average exercise price	Aggregate intrinsic value
	$12.00 - 13.02	34,870	0.58	$          12.00	$      1,432,460
	$20.37 - 28.09	17,000	1.64	21.28	540,630
	$33.18 - 41.73	70,903	3.05	41.02	855,416
		122,773	2.15	$          30.04	$      2,828,506
	(d) Restricted Stock
	Below is a summary of our restricted stock activity for the three months ended March 31, 2014.
	Unvested Shares		Shares		Weighted-Average Grant Date Fair Value
	Unvested, beginning of period		255,081		$                      63.35
	Granted		158,780		52.11
	Vested		-70,485		60.50
	Cancelled or expired		-13,023		65.21
	Unvested, end of period		330,353		58.48
	The grant date fair values, which equal the market price of Digital Realty Trust, Inc. common stock, are being expensed on a straight-line basis for service awards over the vesting period of the restricted stock, which ranges from three to four years. We expense the fair value of awards that contain a performance condition using an accelerated method with each vesting tranche valued as a separate award.
	During the three months ended March 31, 2013, certain employees were granted an aggregate of 69,995 shares of restricted stock, which, in addition to a service condition, were subject to a performance condition that impacted the number of shares which ultimately vested. The performance condition was based upon our achievement of the 2013 CFFO per share targets. Upon evaluating the results of the performance condition, the final number of shares was determined and such shares vest based on satisfaction of the service conditions. Based on our 2013 CFFO per diluted share and unit, 50,805 shares of the 2013 restricted stock awards (net of forfeitures) satisfied the performance condition.
	The expense recorded for the three months ended March 31, 2014 and 2013 related to grants of restricted stock was approximately $0.8 million and $0.7 million, respectively. We capitalized amounts relating to compensation expense of employees direct and incremental to construction and successful leasing activities of approximately $0.8 million and $0.6 million for the three months ended March 31, 2014 and 2013, respectively. Unearned compensation representing the unvested portion of the restricted stock totaled $15.1 million and $8.7 million as of March 31, 2014 and December 31, 2013, respectively. We expect to recognize this unearned compensation over the next 3.0 years on a weighted average basis.
Digital Realty Trust, L.P. [Member]	'
Incentive Plan	'
	13. Incentive Plan
	Our Amended and Restated 2004 Incentive Award Plan (as defined below) provided for the grant of incentive awards to employees, directors and consultants. Awards issuable under the Amended and Restated 2004 Incentive Award Plan included stock options, restricted stock, dividend equivalents, stock appreciation rights, long-term incentive units, cash performance bonuses and other incentive awards. Only employees were eligible to receive incentive stock options under the Amended and Restated 2004 Incentive Award Plan. Initially, we had reserved a total of 4,474,102 shares of common stock for issuance pursuant to the 2004 Incentive Award Plan, subject to certain adjustments set forth in the 2004 Incentive Award Plan. On May 2, 2007, Digital Realty Trust, Inc.’s stockholders approved the First Amended and Restated Digital Realty Trust, Inc., Digital Services, Inc. and Digital Realty Trust, L.P. 2004 Incentive Award Plan (as amended, the Amended and Restated 2004 Incentive Award Plan). The Amended and Restated 2004 Incentive Award Plan increased the aggregate number of shares of stock which could have been issued or transferred under the plan by 5,000,000 shares to a total of 9,474,102 shares, and provided that the maximum number of shares of stock with respect to awards granted to any one participant during a calendar year was 1,500,000 shares and the maximum amount that could have been paid in cash during any calendar year with respect to any performance-based award not denominated in stock or otherwise for which the foregoing limitation would not be an effective limitation for purposes of Section 162(m) of the Code was $10.0 million.
	As of March 31, 2014, 2,007,813 shares of common stock or awards convertible into or exchangeable for common stock remained available for future issuance under the Amended and Restated 2004 Incentive Award Plan. Each long-term incentive unit, Class C Unit and Class D Unit issued under the Amended and Restated 2004 Incentive Award Plan counted as one share of common stock for purposes of calculating the limit on shares that could be issued under the Amended and Restated 2004 Incentive Award Plan and the individual award limit discussed above.
	On April 28, 2014, Digital Realty Trust, Inc. held its 2014 Annual Meeting of Stockholders, or 2014 Annual Meeting, at which the Company's stockholders approved the Digital Realty Trust, Inc., Digital Services, Inc., and Digital Realty Trust, L.P. 2014 Incentive Award Plan, or the 2014 Incentive Award Plan, which had been previously recommended for approval by the Company's Board of Directors. The 2014 Incentive Award Plan became effective as of the date of such stockholder approval.  The material features of the 2014 Stock Incentive Plan are described in our definitive Proxy Statement filed on March 19, 2014 in connection with the 2014 Annual Meeting, which description is incorporated herein by reference.
	(a) Long-Term Incentive Units
	Long-term incentive units, which are also referred to as profits interest units, may be issued to eligible participants for the performance of services to or for the benefit of the Operating Partnership. Long-term incentive units, whether vested or not, will receive the same quarterly per unit distributions as Operating Partnership common units, which equal per share distributions on Digital Realty Trust, Inc. common stock. Initially, long-term incentive units do not have full parity with common units with respect to liquidating distributions. If such parity is reached, vested long-term incentive units may be converted into an equal number of common units of the Operating Partnership at any time, and thereafter enjoy all the rights of common units of the Operating Partnership, including redemption rights. For a discussion of how long-term incentive units reach parity with common units, see note 13(a) to our consolidated financial statements for the fiscal year ended December 31, 2013, included in our Annual Report on 10-K, as amended, for the year ended December 31, 2013.
	Below is a summary of our long-term incentive unit activity for the three months ended March 31, 2014.
	Unvested Units		Units		Weighted-Average Grant Date Fair Value
	Unvested, beginning of period		440,951		$                      62.42
	Granted		181,801		52.15
	Vested		-289,564		59.13
	Cancelled or expired		-18,773		65.21
	Unvested, end of period		314,415		59.34
	During the three months ended March 31, 2013, certain employees were granted an aggregate of 95,316 long-term incentive units, which, in addition to a service condition, were subject to a performance condition that impacted the number of units which ultimately vested. The performance condition was based upon our achievement of the 2013 Core Funds From Operations, or CFFO, per share targets. Based on our 2013 CFFO per diluted share and unit, 75,105 of the 2013 long-term incentive units, net of forfeitures satisfied the performance condition. The grant date fair values, which equal the market price of Digital Realty Trust, Inc. common stock, are being expensed on a straight-line basis for service awards over four years, the current vesting period of the long-term incentive units. We expense the fair value of awards that contain a performance condition using an accelerated method with each vesting tranche valued as a separate award.
	The expense recorded for the three months ended March 31, 2014 and 2013 related to long-term incentive units was approximately $7.8 million and $2.2 million, respectively. We capitalized amounts relating to compensation expense of employees direct and incremental to construction and successful leasing activities of approximately $0.5 million and $0.4 million for the three months ended March 31, 2014 and 2013, respectively. Unearned compensation representing the unvested portion of the long-term incentive units totaled $14.3 million and $12.9 million as of March 31, 2014 and December 31, 2013, respectively. We expect to recognize this unearned compensation over the next 2.6 years on a weighted average basis.
	(b) 2014 Performance-Based Awards
	On February 11, 2014, the Compensation Committee of the Board of Directors of the Company approved the grant of performance-based Class D Units of the Operating Partnership and performance-based restricted stock units, or RSUs, covering shares of the Company’s common stock (collectively, the “awards”), under the Amended and Restated 2004 Incentive Award Plan to officers and employees of the Company.
	The awards, which were determined to contain a market condition, utilize total shareholder return, or TSR, over a three-year measurement period as the performance metric. Awards will vest based on the Company’s TSR relative to the MSCI US REIT Index, or RMS, over a three-year performance period commencing in January 2014 (or, if earlier, ending on the date on which a change in control of the Company occurs), or the Performance Period, subject to continued services.  Performance vesting is measured based on the difference between the Company’s TSR percentage and the TSR percentage of the RMS, or the RMS Relative Performance. In the event that the RMS Relative Performance during the Performance Period is achieved at the “threshold,” “target” or “high” level as set forth below, the awards will become performance-vested with respect to the percentage of Class D units, or RSUs, as applicable, set forth below:
	Level		RMS Relative Performance		Performance Vesting Percentage
			< 0 basis points		0%
	Threshold Level		0 points		25%
	Target Level		325 basis points		50%
	High Level		≥ 650 basis points		100%
	If the RMS Relative Performance falls between the levels specified above, the percentage of the award that will performance vest will be determined using straight-line linear interpolation between such levels.
	Following the completion of the Performance Period, performance-vested awards, if any, will vest 50% on February 27, 2017 and 50% on February 27, 2018, subject to continued employment through each applicable vesting date.
	Vesting will be accelerated, in full or on a pro rata basis, in the event of a change in control, termination of employment by the Company without cause, termination of employment by the award recipient for good reason, death, disability or retirement.
	The fair value of the 2014 grant of awards was measured using a Monte Carlo simulation to estimate the probability of the performance vesting conditions being satisfied.  The Company's achievement of the performance vesting conditions is contingent on its TSR over a three-year performance period, relative to the total shareholder return of the RMS.  The Monte Carlo simulation is a probabilistic technique based on the underlying theory of the Black-Scholes formula, which was run for 100,000 trials to determine the fair value of the awards.  For each trial, the payoff to an award is calculated at the settlement date and is then discounted to the grant date at a risk-free interest rate.  The total expected value of the awards on the grant date was determined by multiplying the average value per award over all trials by the number of awards granted.  Assumptions used in the valuation include expected stock price volatility of 33 percent and a risk-free interest rate of 0.67 percent.  The valuation was performed in a risk-neutral framework, so no assumption was made with respect to an equity risk premium.
	As of March 31, 2014, 645,484 performance-based Class D Units and 247,158 performance-based RSUs had been awarded to our executive officers and other employees. The fair value of these awards of approximately $17.1 million will be recognized as compensation expense on a straight-line basis over the expected service period of approximately four years. The unearned compensation as of March 31, 2014 was $13.6 million, net of cancellations. As of March 31, 2014, none of the above awards had vested. We recognized compensation expense related to these awards of $0.4 million in the three months ended March 31, 2014. We capitalized amounts relating to compensation expense of employees directly engaged in construction and leasing activities of $0.2 million for the three months ended March 31, 2014. If the market condition is not met, the unamortized amount will be recognized as an expense at that time.
	(c) Stock Options
	The following table summarizes the Amended and Restated 2004 Incentive Award Plan’s stock option activity for the period ended March 31, 2014:
		Period Ended
		31-Mar-14
		Shares	Weighted average exercise price
	Options outstanding, beginning of period	123,690	$              30.13
	Exercised	-917	41.73
	Cancelled / Forfeited	-	-
	Options outstanding, end of period	122,773	$              30.04
	Exercisable, end of period	122,773	$              30.04
	The following table summarizes information about stock options outstanding and exercisable as of March 31, 2014:
	Options outstanding and exercisable
	Exercise price	Number outstanding	Weighted average remaining contractual life (years)	Weighted average exercise price	Aggregate intrinsic value
	$12.00 - 13.02	34,870	0.58	$          12.00	$      1,432,460
	$20.37 - 28.09	17,000	1.64	21.28	540,630
	$33.18 - 41.73	70,903	3.05	41.02	855,416
		122,773	2.15	$          30.04	$      2,828,506
	(d) Restricted Stock
	Below is a summary of our restricted stock activity for the three months ended March 31, 2014.
	Unvested Shares		Shares		Weighted-Average Grant Date Fair Value
	Unvested, beginning of period		255,081		$                      63.35
	Granted		158,780		52.11
	Vested		-70,485		60.50
	Cancelled or expired		-13,023		65.21
	Unvested, end of period		330,353		58.48
	The grant date fair values, which equal the market price of Digital Realty Trust, Inc. common stock, are being expensed on a straight-line basis for service awards over the vesting period of the restricted stock, which ranges from three to four years. We expense the fair value of awards that contain a performance condition using an accelerated method with each vesting tranche valued as a separate award.
	During the three months ended March 31, 2013, certain employees were granted an aggregate of 69,995 shares of restricted stock, which, in addition to a service condition, were subject to a performance condition that impacted the number of shares which ultimately vested. The performance condition was based upon our achievement of the 2013 CFFO per share targets. Upon evaluating the results of the performance condition, the final number of shares was determined and such shares vest based on satisfaction of the service conditions. Based on our 2013 CFFO per diluted share and unit, 50,805 shares of the 2013 restricted stock awards (net of forfeitures) satisfied the performance condition.
	The expense recorded for the three months ended March 31, 2014 and 2013 related to grants of restricted stock was approximately $0.8 million and $0.7 million, respectively. We capitalized amounts relating to compensation expense of employees direct and incremental to construction and successful leasing activities of approximately $0.8 million and $0.6 million for the three months ended March 31, 2014 and 2013, respectively. Unearned compensation representing the unvested portion of the restricted stock totaled $15.1 million and $8.7 million as of March 31, 2014 and December 31, 2013, respectively. We expect to recognize this unearned compensation over the next 3.0 years on a weighted average basis.

Derivative_Instruments

Derivative Instruments	3 Months Ended
	Mar. 31, 2014
Derivative Instruments	'
	14. Derivative Instruments
	As of March 31, 2014 and December 31, 2013, we had the following outstanding interest rate derivatives that were designated as cash flow hedges of interest rate risk (in thousands):
	Notional Amount								Fair Value at Significant Other Observable Inputs (Level 2)
	As of		As of		Type of Derivative	Strike Rate	Effective Date	Expiration Date	As of	As of
	31-Mar-14		31-Dec-13						31-Mar-14	31-Dec-13
	Currently-paying contracts
	$    410,905	-1	$    410,905	-1	Swap	0.717	Various	Various	$            (234)	$              (76)
	150,696	-2	150,040	-2	Swap	0.925	Jul. 17, 2012	Apr. 18, 2017	474	131
	561,601		560,945						240	55
	Forward-starting contracts
	150,000	-3	-		Forward-starting Swap	2.091	Jul. 15, 2014	Jul. 15, 2019	-681	-
	Total
	$    711,601		$    560,945						$            (441)	$              55
		-1		Represents the U.S. dollar tranche of the unsecured term loan.
		-2		Represents a portion of the Singapore dollar tranche of the unsecured term loan. Translation to U.S. dollars is based on exchange rate of $0.80 to 1.00 SGD as of March 31, 2014 and $0.79 to 1.00 SGD as of December 31, 2013.
		-3		In January 2014, we entered into a new forward-starting swap agreement with a notional amount of $150.0 million requiring fixed rate interest payments of 2.091% for a five-year period that commences in July 2014.
	As of March 31, 2014, we estimate that an additional $5.1 million will be reclassified as an increase to interest expense during the twelve months ending March 31, 2015, when the hedged forecasted transactions impact earnings.
Digital Realty Trust, L.P. [Member]	'
Derivative Instruments	'
	14. Derivative Instruments
	As of March 31, 2014 and December 31, 2013, we had the following outstanding interest rate derivatives that were designated as cash flow hedges of interest rate risk (in thousands):
	Notional Amount								Fair Value at Significant Other Observable Inputs (Level 2)
	As of		As of		Type of Derivative	Strike Rate	Effective Date	Expiration Date	As of	As of
	31-Mar-14		31-Dec-13						31-Mar-14	31-Dec-13
	Currently-paying contracts
	$    410,905	-1	$    410,905	-1	Swap	0.717	Various	Various	$            (234)	$              (76)
	150,696	-2	150,040	-2	Swap	0.925	Jul. 17, 2012	Apr. 18, 2017	474	131
	561,601		560,945						240	55
	Forward-starting contracts
	150,000	-3	-		Forward-starting Swap	2.091	Jul. 15, 2014	Jul. 15, 2019	-681	-
	Total
	$    711,601		$    560,945						$            (441)	$              55
		-1		Represents the U.S. dollar tranche of the unsecured term loan.
		-2		Represents a portion of the Singapore dollar tranche of the unsecured term loan. Translation to U.S. dollars is based on exchange rate of $0.80 to 1.00 SGD as of March 31, 2014 and $0.79 to 1.00 SGD as of December 31, 2013.
		-3		In January 2014, we entered into a new forward-starting swap agreement with a notional amount of $150.0 million requiring fixed rate interest payments of 2.091% for a five-year period that commences in July 2014.
	As of March 31, 2014, we estimate that an additional $5.1 million will be reclassified as an increase to interest expense during the twelve months ending March 31, 2015, when the hedged forecasted transactions impact earnings.

Fair_Value_Of_Instruments

Fair Value Of Instruments	3 Months Ended
	Mar. 31, 2014
Fair Value Of Instruments	'
	15. Fair Value of Instruments
	We disclose fair value information about all financial instruments, whether or not recognized in the condensed consolidated balance sheets, for which it is practicable to estimate fair value. Current accounting guidance requires the Company to disclose fair value information about all financial instruments, whether or not recognized in the balance sheets, for which it is practicable to estimate fair value.
	The Company’s disclosures of estimated fair value of financial instruments at March 31, 2014 and December 31, 2013 were determined using available market information and appropriate valuation methods. Considerable judgment is necessary to interpret market data and develop estimated fair value. The use of different market assumptions or estimation methods may have a material effect on the estimated fair value amounts.
	The carrying amounts for cash and cash equivalents, restricted cash, accounts and other receivables, accounts payable and other accrued liabilities, accrued dividends and distributions, security deposits and prepaid rents approximate fair value because of the short-term nature of these instruments. As described in note 14, the interest rate swaps are recorded at fair value.
	We calculate the fair value of our mortgage loans, unsecured term loan, unsecured senior notes and exchangeable senior debentures based on currently available market rates assuming the loans are outstanding through maturity and considering the collateral and other loan terms. In determining the current market rate for fixed rate debt, a market spread is added to the quoted yields on federal government treasury securities with similar maturity dates to our debt. The carrying value of our global revolving credit facility approximates fair value, due to the variability of interest rates.
	As of March 31, 2014 and December 31, 2013, the aggregate estimated fair value and carrying value of our global revolving credit facility, unsecured term loan, unsecured senior notes, exchangeable senior debentures and mortgage loans were as follows (in thousands):
			As of March 31, 2014		As of December 31, 2013
		Categorization under the fair value hierarchy	Estimated Fair Value	Carrying Value	Estimated Fair Value	Carrying Value
	Global revolving credit facility (1)	Level 2	$                  790,500	$          790,500	$                  724,668	$          724,668
	Unsecured term loan (2)	Level 2	1,026,891	1,026,891	1,020,984	1,020,984
	Unsecured senior notes (3)(4)	Level 2	2,422,322	2,368,848	2,379,999	2,364,232
	Exchangeable senior debentures (3)	Level 2	363,846	266,400	336,847	266,400
	Mortgage loans (3)	Level 2	589,378	554,742	622,580	585,608
			$               5,192,937	$       5,007,381	$               5,085,078	$       4,961,892
		-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 $14,632 and $15,047 in the aggregate as of March 31, 2014 and December 31, 2013, respectively.
Digital Realty Trust, L.P. [Member]	'
Fair Value Of Instruments	'
	15. Fair Value of Instruments
	We disclose fair value information about all financial instruments, whether or not recognized in the condensed consolidated balance sheets, for which it is practicable to estimate fair value. Current accounting guidance requires the Company to disclose fair value information about all financial instruments, whether or not recognized in the balance sheets, for which it is practicable to estimate fair value.
	The Company’s disclosures of estimated fair value of financial instruments at March 31, 2014 and December 31, 2013 were determined using available market information and appropriate valuation methods. Considerable judgment is necessary to interpret market data and develop estimated fair value. The use of different market assumptions or estimation methods may have a material effect on the estimated fair value amounts.
	The carrying amounts for cash and cash equivalents, restricted cash, accounts and other receivables, accounts payable and other accrued liabilities, accrued dividends and distributions, security deposits and prepaid rents approximate fair value because of the short-term nature of these instruments. As described in note 14, the interest rate swaps are recorded at fair value.
	We calculate the fair value of our mortgage loans, unsecured term loan, unsecured senior notes and exchangeable senior debentures based on currently available market rates assuming the loans are outstanding through maturity and considering the collateral and other loan terms. In determining the current market rate for fixed rate debt, a market spread is added to the quoted yields on federal government treasury securities with similar maturity dates to our debt. The carrying value of our global revolving credit facility approximates fair value, due to the variability of interest rates.
	As of March 31, 2014 and December 31, 2013, the aggregate estimated fair value and carrying value of our global revolving credit facility, unsecured term loan, unsecured senior notes, exchangeable senior debentures and mortgage loans were as follows (in thousands):
			As of March 31, 2014		As of December 31, 2013
		Categorization under the fair value hierarchy	Estimated Fair Value	Carrying Value	Estimated Fair Value	Carrying Value
	Global revolving credit facility (1)	Level 2	$                  790,500	$          790,500	$                  724,668	$          724,668
	Unsecured term loan (2)	Level 2	1,026,891	1,026,891	1,020,984	1,020,984
	Unsecured senior notes (3)(4)	Level 2	2,422,322	2,368,848	2,379,999	2,364,232
	Exchangeable senior debentures (3)	Level 2	363,846	266,400	336,847	266,400
	Mortgage loans (3)	Level 2	589,378	554,742	622,580	585,608
			$               5,192,937	$       5,007,381	$               5,085,078	$       4,961,892
		-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 $14,632 and $15,047 in the aggregate as of March 31, 2014 and December 31, 2013, respectively.

Commitments_And_Contingencies

Commitments And Contingencies	3 Months Ended
	Mar. 31, 2014
Commitments And Contingencies	'
	16. Commitments and Contingencies
	(a) Contingent liabilities
	As part of the acquisition of 29A International Business Park, the seller could earn additional consideration based on future net operating income growth in excess of certain performance targets, as defined in the agreements for the acquisition. As of March 31, 2014, construction is not complete and none of the leases executed subsequent to purchase would cause an amount to become probable of payment and therefore no amount is accrued as of March 31, 2014. The maximum amount that could be earned by the seller is $50.0 million SGD (or approximately $39.8 million based on the exchange rate as of March 31, 2014). The earnout contingency expires in November 2020.
	One of the tenants at our Convergence Business Park property has an option to expand as part of their lease agreement, which expires in April 2017. As part of this option, development activities are not permitted on specifically identified expansion space within the property until April 2014. From April 2014 through April 2017, the tenant has the right of first refusal on any third party’s bona fide offer to buy the adjacent land.  If the tenant exercises their option, we may (a) construct and lease an additional shell building on the expansion space to the tenant at a stipulated rate of return on cost or (b) sell the existing building and the expansion space to the tenant for a price of approximately $24.0 million and $225,000 per square acre, respectively, plus additional adjustments as provided in the lease.
	As part of the acquisition of the Sentrum Portfolio, the seller could earn additional consideration based on future net returns on vacant space to be developed, but not currently leased, as defined in the purchase agreement for the acquisition. The initial estimate of fair value of contingent consideration was approximately £56.5 million (or approximately $87.6 million based on the exchange rate as of July 11, 2012, the acquisition date). We have adjusted the contingent consideration to fair value at each reporting date with changes in fair value recognized in operating income. At March 31, 2014, the fair value of the contingent consideration for Sentrum was £37.2 million (or approximately $62.0 million based on the exchange rate as of March 31, 2014) and is currently accrued in accounts payable and other accrued expenses in the condensed consolidated balance sheet. During the year ended December 31, 2013, we made earnout payments of approximately £16.9 million (or approximately $25.8 million based on the exchange rates as of the date of each payment).  No payments were made during the three months ended March 31, 2014. Change in fair value of contingent consideration for Sentrum was an increase to operating income of approximately $3.4 million for the three months ended March 31, 2014 and a reduction to operating income of approximately $1.3 million for the three months ended March 31, 2013. The earn-out contingency expires in July 2015. This amount will be reassessed on a quarterly basis, with any changes being recognized in earnings. Increases or decreases in the fair value of the contingent consideration can result from changes in discount periods, discount rates and probabilities that contingencies will be met.
	(b) Construction Commitments
	Our properties require periodic investments of capital for tenant-related capital expenditures and for general capital improvements and from time to time in the normal course of our business, we enter into various construction contracts with third parties that may obligate us to make payments. At March 31, 2014, we had open commitments related to construction contracts of approximately $281.4 million.
	(c) Legal Proceedings
	Although the Company is involved in legal proceedings arising in the ordinary course of business, as of March 31, 2014, the Company is not currently a party to any legal proceedings nor, to its knowledge, is any legal proceeding threatened against it that it believes would have a material adverse effect on its financial position, results of operations or liquidity.
Digital Realty Trust, L.P. [Member]	'
Commitments And Contingencies	'
	16. Commitments and Contingencies
	(a) Contingent liabilities
	As part of the acquisition of 29A International Business Park, the seller could earn additional consideration based on future net operating income growth in excess of certain performance targets, as defined in the agreements for the acquisition. As of March 31, 2014, construction is not complete and none of the leases executed subsequent to purchase would cause an amount to become probable of payment and therefore no amount is accrued as of March 31, 2014. The maximum amount that could be earned by the seller is $50.0 million SGD (or approximately $39.8 million based on the exchange rate as of March 31, 2014). The earnout contingency expires in November 2020.
	One of the tenants at our Convergence Business Park property has an option to expand as part of their lease agreement, which expires in April 2017. As part of this option, development activities are not permitted on specifically identified expansion space within the property until April 2014. From April 2014 through April 2017, the tenant has the right of first refusal on any third party’s bona fide offer to buy the adjacent land.  If the tenant exercises their option, we may (a) construct and lease an additional shell building on the expansion space to the tenant at a stipulated rate of return on cost or (b) sell the existing building and the expansion space to the tenant for a price of approximately $24.0 million and $225,000 per square acre, respectively, plus additional adjustments as provided in the lease.
	As part of the acquisition of the Sentrum Portfolio, the seller could earn additional consideration based on future net returns on vacant space to be developed, but not currently leased, as defined in the purchase agreement for the acquisition. The initial estimate of fair value of contingent consideration was approximately £56.5 million (or approximately $87.6 million based on the exchange rate as of July 11, 2012, the acquisition date). We have adjusted the contingent consideration to fair value at each reporting date with changes in fair value recognized in operating income. At March 31, 2014, the fair value of the contingent consideration for Sentrum was £37.2 million (or approximately $62.0 million based on the exchange rate as of March 31, 2014) and is currently accrued in accounts payable and other accrued expenses in the condensed consolidated balance sheet. During the year ended December 31, 2013, we made earnout payments of approximately £16.9 million (or approximately $25.8 million based on the exchange rates as of the date of each payment).  No payments were made during the three months ended March 31, 2014. Change in fair value of contingent consideration for Sentrum was an increase to operating income of approximately $3.4 million for the three months ended March 31, 2014 and a reduction to operating income of approximately $1.3 million for the three months ended March 31, 2013. The earn-out contingency expires in July 2015. This amount will be reassessed on a quarterly basis, with any changes being recognized in earnings. Increases or decreases in the fair value of the contingent consideration can result from changes in discount periods, discount rates and probabilities that contingencies will be met.
	(b) Construction Commitments
	Our properties require periodic investments of capital for tenant-related capital expenditures and for general capital improvements and from time to time in the normal course of our business, we enter into various construction contracts with third parties that may obligate us to make payments. At March 31, 2014, we had open commitments related to construction contracts of approximately $281.4 million.
	(c) Legal Proceedings
	Although the Company is involved in legal proceedings arising in the ordinary course of business, as of March 31, 2014, the Company is not currently a party to any legal proceedings nor, to its knowledge, is any legal proceeding threatened against it that it believes would have a material adverse effect on its financial position, results of operations or liquidity.

Subsequent_Events

Subsequent Events	3 Months Ended
	Mar. 31, 2014
Subsequent Events	'
	17. Subsequent Events
	On April 1, 2014, Digital Stout Holding, LLC, a wholly-owned subsidiary of Digital Realty Trust, L.P, issued £300.0 million (or approximately $498.9 million based on the April 1, 2014 exchange rate of £1.00 to $1.66) aggregate principal amount of its 4.750% Guaranteed Notes due 2023, or the 2023 notes. The 2023 notes are senior unsecured obligations of Digital Stout Holding, LLC and are fully and unconditionally guaranteed by Digital Realty Trust, Inc. and Digital Realty Trust, L.P. Interest on the 2023 notes is payable semiannually in arrears at a rate of 4.750% per annum. The 2023 notes will mature on October 13, 2023.We intend to use the net proceeds from the offering of the 2023 notes to temporarily repay borrowings under our global revolving credit facility, to acquire additional properties, to fund development opportunities, for general working capital purposes or a combination of the foregoing.
	On April 29, 2014, we declared the following dividends per share and the Operating Partnership declared an equivalent distribution per unit:
	Share / Unit Class	Series E	Series F	Series G	Series H		Common stock and common unit
		Preferred Stock and Unit	Preferred Stock and Unit	Preferred Stock and Unit	Preferred Stock and Unit
	Dividend and distribution amount	$	$	$	$	-1	$
		0.437500	0.414063	0.367188	0.486550		0.830000
	Dividend and distribution payable date	30-Jun-14	30-Jun-14	30-Jun-14	30-Jun-14		30-Jun-14
	Dividend and distribution payable to holders of record on	13-Jun-14	13-Jun-14	13-Jun-14	13-Jun-14		13-Jun-14
	Annual equivalent rate of dividend and distribution	$	$	$	$		$
		1.750	1.656	1.469	1.844		3.320
	(1)  Represents a pro rata dividend from and including the original issue date to and including June 30, 2014.
Digital Realty Trust, L.P. [Member]	'
Subsequent Events	'
	17. Subsequent Events
	On April 1, 2014, Digital Stout Holding, LLC, a wholly-owned subsidiary of Digital Realty Trust, L.P, issued £300.0 million (or approximately $498.9 million based on the April 1, 2014 exchange rate of £1.00 to $1.66) aggregate principal amount of its 4.750% Guaranteed Notes due 2023, or the 2023 notes. The 2023 notes are senior unsecured obligations of Digital Stout Holding, LLC and are fully and unconditionally guaranteed by Digital Realty Trust, Inc. and Digital Realty Trust, L.P. Interest on the 2023 notes is payable semiannually in arrears at a rate of 4.750% per annum. The 2023 notes will mature on October 13, 2023.We intend to use the net proceeds from the offering of the 2023 notes to temporarily repay borrowings under our global revolving credit facility, to acquire additional properties, to fund development opportunities, for general working capital purposes or a combination of the foregoing.
	On April 29, 2014, we declared the following dividends per share and the Operating Partnership declared an equivalent distribution per unit:
	Share / Unit Class	Series E	Series F	Series G	Series H		Common stock and common unit
		Preferred Stock and Unit	Preferred Stock and Unit	Preferred Stock and Unit	Preferred Stock and Unit
	Dividend and distribution amount	$	$	$	$	-1	$
		0.437500	0.414063	0.367188	0.486550		0.830000
	Dividend and distribution payable date	30-Jun-14	30-Jun-14	30-Jun-14	30-Jun-14		30-Jun-14
	Dividend and distribution payable to holders of record on	13-Jun-14	13-Jun-14	13-Jun-14	13-Jun-14		13-Jun-14
	Annual equivalent rate of dividend and distribution	$	$	$	$		$
		1.750	1.656	1.469	1.844		3.320
	(1)  Represents a pro rata dividend from and including the original issue date to and including June 30, 2014.

Summary_Of_Significant_Account1

Summary Of Significant Accounting Policies (Policy)	3 Months Ended
	Mar. 31, 2014
Principles Of Consolidation And Basis Of Presentation	'
	(a) Principles of Consolidation and Basis of Presentation
	The accompanying interim condensed consolidated financial statements include all of the accounts of Digital Realty Trust, Inc., the Operating Partnership and the subsidiaries of the Operating Partnership. Intercompany balances and transactions have been eliminated.
	The accompanying interim condensed consolidated financial statements are unaudited, but have been prepared in accordance with U.S. generally accepted accounting principles (U.S. GAAP) for interim financial information and in compliance with the rules and regulations of the United States Securities and Exchange Commission. Accordingly, they do not include all of the disclosures required by U.S. GAAP for complete financial statements. In the opinion of management, all adjustments necessary for a fair presentation have been included. All such adjustments are considered to be of a normal recurring nature, except as otherwise indicated. The results of operations for the interim periods are not necessarily indicative of the results to be obtained for the full fiscal year. These condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and the notes thereto included in our annual report on Form 10-K, as amended, for the year ended December 31, 2013.
	The notes to the condensed consolidated financial statements of Digital Realty Trust, Inc. and the Operating Partnership have been combined to provide the following benefits:
		•	enhancing investors’ understanding of the Company and the Operating Partnership by enabling investors to view the business as a whole in the same manner as management views and operates the business;
		•	eliminating duplicative disclosure and providing a more streamlined and readable presentation since a substantial portion of the disclosure applies to both the Company and the Operating Partnership; and
		•	creating time and cost efficiencies through the preparation of one set of notes instead of two separate sets of notes.
	There are a few differences between the Company and the Operating Partnership, which are reflected in these condensed consolidated financial statements. We believe it is important to understand the differences between the Company and the Operating Partnership in the context of how we operate as an interrelated consolidated company. Digital Realty Trust, Inc.’s only material asset is its ownership of partnership interests of the Operating Partnership. As a result, Digital Realty Trust, Inc. does not conduct business itself, other than acting as the sole general partner of the Operating Partnership, issuing public equity from time to time and guaranteeing certain unsecured debt of the Operating Partnership and certain of its subsidiaries. Digital Realty Trust, Inc. itself does not hold any indebtedness but guarantees the unsecured debt of the Operating Partnership and certain of its subsidiaries, as disclosed in these notes. The Operating Partnership holds substantially all the assets of the Company and holds the ownership interests in the Company’s joint ventures. The Operating Partnership conducts the operations of the business and is structured as a partnership with no publicly traded equity. Except for net proceeds from public equity issuances by Digital Realty Trust, Inc., which are generally contributed to the Operating Partnership in exchange for partnership units, the Operating Partnership generates the capital required by the Company’s business through the Operating Partnership’s operations, by the Operating Partnership’s direct or indirect incurrence of indebtedness or through the issuance of partnership units.
	The presentation of noncontrolling interests in operating partnership, stockholders’ equity and partners’ capital are the main areas of difference between the condensed consolidated financial statements of Digital Realty Trust, Inc. and those of the Operating Partnership. The common limited partnership interests held by the limited partners in the Operating Partnership are presented as limited partners’ capital within partners’ capital in the Operating Partnership’s condensed consolidated financial statements and as noncontrolling interests in operating partnership within equity in Digital Realty Trust, Inc.’s condensed consolidated financial statements. The common and preferred partnership interests held by Digital Realty Trust, Inc. in the Operating Partnership are presented as general partner’s capital within partners’ capital in the Operating Partnership’s condensed consolidated financial statements and as preferred stock, common stock, additional paid-in capital and accumulated dividends in excess of earnings within stockholders’ equity in Digital Realty Trust, Inc.’s condensed consolidated financial statements. The differences in the presentations between stockholders’ equity and partners’ capital result from the differences in the equity issued at the Digital Realty Trust, Inc. and the Operating Partnership levels.
	To help investors understand the significant differences between the Company and the Operating Partnership, these consolidated financial statements present the following separate sections for each of the Company and the Operating Partnership:
		•	condensed consolidated face financial statements; and
		•	the following notes to the condensed consolidated financial statements:
		•	Debt of the Company and Debt of the Operating Partnership;
		•	Income per Share and Income per Unit; and
		•	Equity and Accumulated Other Comprehensive Loss, Net of the Company and Capital and Accumulated Other Comprehensive Income (Loss) of the Operating Partnership.
	In the sections that combine disclosure of Digital Realty Trust, Inc. and the Operating Partnership, these notes refer to actions or holdings as being actions or holdings of the Company. Although the Operating Partnership is generally the entity that enters into contracts and joint ventures and holds assets and debt, reference to the Company is appropriate because the business is one enterprise and the Company operates the business through the Operating Partnership.
Cash Equivalents	'
	(b) Cash Equivalents
	For the purpose of the condensed consolidated statements of cash flows, we consider short-term investments with original maturities of 90 days or less to be cash equivalents. As of March 31, 2014, cash equivalents consist of investments in money market instruments.
Investment In Unconsolidated Joint Ventures	'
	(c) Investment in Unconsolidated Joint Ventures
	The Company’s investment in unconsolidated joint ventures is accounted for using the equity method, whereby the investment is increased for capital contributed and our share of the joint ventures’ net income and decreased by distributions we receive and our share of any losses of the joint ventures.
	We amortize the difference between the cost of our investments in unconsolidated joint ventures and the book value of the underlying equity into equity in earnings from unconsolidated affiliates on a straight-line basis consistent with the lives of the underlying assets.
Capitalization Of Costs	'
	(d) Capitalization of Costs
	Direct and indirect project costs that are clearly associated with the development of properties are capitalized as incurred. Project costs include all costs directly associated with the development of a property, including construction costs, interest, property taxes, insurance, legal fees and costs of personnel working on the project. Indirect costs that do not clearly relate to the projects under development are not capitalized and are charged to expense as incurred.
	Capitalization of costs begins when the activities necessary to get the development project ready for its intended use begins, which include costs incurred before the beginning of construction. Capitalization of costs ceases when the development project is substantially complete and ready for its intended use. Determining when a development project commences, and when it is substantially complete and ready for its intended use involves a degree of judgment. We generally consider a development project to be substantially complete and ready for its intended use upon receipt of a certificate of occupancy. We cease cost capitalization if activities necessary for the development of the property have been suspended. Capitalized costs are allocated to the specific components of a project that are benefited.
	During the three months ended March 31, 2014 and 2013, we capitalized interest of approximately $5.3 million and $5.3 million, respectively. During the three months ended March 31, 2014 and 2013, we capitalized amounts relating to compensation expense of employees direct and incremental to construction and successful leasing activities of approximately $12.4  million and $10.1 million, respectively. Cash flows from capitalized leasing costs of $9.6 million and $10.8 million are included in improvements to and advances for investments in real estate in cash flows from investing activities in the condensed consolidated statements of cash flows for the three months ended March 31, 2014 and 2013, respectively.
Share Based Compensation	'
	(e) Share-Based Compensation
	The Company measures all share-based compensation awards at fair value on the date they are granted to employees and directors, and recognizes compensation cost, net of forfeitures, over the requisite service period for awards with only a service condition. The estimated fair value of the long-term incentive units and Class D Units (discussed in note 13) granted by us is being amortized on a straight-line basis over the expected service period.
	The fair value of share-based compensation awards that contain a market condition is measured using a lattice model and not adjusted based on actual achievement of the performance goals.
Income Taxes	'
	(f) Income Taxes
	Digital Realty Trust, Inc. has elected to be treated as a real estate investment trust (a “REIT”) for federal income tax purposes. As a REIT, Digital Realty Trust, Inc. generally is not required to pay federal corporate income tax to the extent taxable income is currently distributed to its stockholders.  If Digital Realty Trust, Inc. fails to qualify as a REIT in any taxable year, it will be subject to federal income tax (including any applicable alternative minimum tax) on its taxable income at regular corporate tax rates.
	The Company is subject to foreign, state and local income taxes in the jurisdictions in which it conducts business. The Company’s U.S. consolidated taxable REIT subsidiary is subject to both federal and state income taxes to the extent there is taxable income. Accordingly, the Company recognizes current and deferred income taxes for its taxable REIT subsidiaries, certain states and non-U.S. jurisdictions, as appropriate.
	We assess our significant tax positions in accordance with U.S. GAAP for all open tax years and determine whether we have any material unrecognized liabilities from uncertain tax benefits. If a tax position is not considered “more-likely-than-not” to be sustained solely on its technical merits, no benefits of the tax position are to be recognized (for financial statement purposes). As of March 31, 2014 and December 31, 2013, we have no assets or liabilities for uncertain tax positions. We classify interest and penalties from significant uncertain tax positions as interest expense and operating expense, respectively, in our condensed consolidated income statements. For the three months ended March 31, 2014 and 2013, we had no such interest or penalties. The tax year 2010 and thereafter remain open to examination by the major taxing jurisdictions with which the Company files tax returns.
	See Note 10 for further discussion on income taxes.
Presentation Of Transactional-Based Taxes	'
	(g) Presentation of Transactional-based Taxes
	We account for transactional-based taxes, such as value added tax, or VAT, for our international properties on a net basis.
Fee Income	'
	(h) Fee Income
	Occasionally, customers engage the company for certain services.  The nature of these services historically involves property management, construction management, and assistance with financing.  The proper revenue recognition of these services can be different, depending on whether the arrangements are service revenue or contractor type revenue.
	Service revenues are typically recognized on an equal monthly basis based on the minimum fee to be earned.  The monthly amounts could be adjusted depending on if certain performance milestones are met.
	Fee income also includes management fees. These fees arise from contractual agreements with entities in which we have a noncontrolling interest. The management fees are recognized as earned under the respective agreements. Management and other fee income related to partially owned entities are recognized to the extent attributable to the unaffiliated interest.
	Contractor type revenue for long-term contracts is recognized under the percentage-of-completion method of accounting. Revenues are determined by measuring the percentage of total costs incurred to date to estimated total costs for each construction management contract based on current estimates of costs to complete. Contract costs include all labor and benefits, materials, subcontracts, and an allocation of indirect costs related to contract performance. Indirect costs are allocated to projects based upon labor hours charged. Third party costs are included in construction management expense and their reimbursements are included in construction management revenue to the extent that the Company is the primary obligor for the third party costs. Otherwise, construction management revenue and expense is reflected net of third party costs. As long-term design-build projects extend over one or more years, revisions in cost and estimated earnings during the course of the work are reflected in the accounting period in which the facts which require the revision become known. At the time a loss on a design-build project becomes known, the entire amount of the estimated loss is recognized in the condensed consolidated financial statements. Change orders are recognized when they are approved by the client.
	Costs and estimated earnings in excess of billings on uncompleted construction management projects are included in other assets in the condensed consolidated balance sheets. Billings in excess of costs and estimated earnings on uncompleted construction management projects are included in accounts payable and other accrued liabilities in the condensed consolidated balance sheets. Customers are billed on a monthly basis at the end of each month, which can be in advance of work performed.
Assets And Liabilities Measured At Fair Value	'
	(i) Assets and Liabilities Measured at Fair Value
	Fair value under U.S. GAAP is a market-based measurement, not an entity-specific measurement. Therefore, our fair value measurements are determined based on the assumptions that market participants would use in pricing the asset or liability. As a basis for considering market participant assumptions in fair-value measurements, we use a fair-value hierarchy that distinguishes between market participant assumptions based on market data obtained from sources independent of the reporting entity (observable inputs that are classified within Levels 1 and 2 of the hierarchy) and the reporting entity’s own assumptions about market participant assumptions (unobservable inputs classified within Level 3 of the hierarchy).
	Level 1 inputs utilize quoted prices (unadjusted) in active markets for identical assets or liabilities that the Company has the ability to access. Level 2 inputs are inputs other than quoted prices included in Level 1 that are observable for the asset or liability, either directly or indirectly. Level 2 inputs may include quoted prices for similar assets and liabilities in active markets, as well as inputs that are observable for the asset or liability (other than quoted prices), such as interest rates, foreign exchange rates, and yield curves that are observable at commonly quoted intervals. Level 3 inputs are unobservable inputs for the asset or liability which are typically based on an entity’s own assumptions, as there is little, if any, related market activity. In instances where the determination of the fair-value measurement is based on inputs from different levels of the fair-value hierarchy, the level in the fair-value hierarchy within which the entire fair-value measurement falls is based on the lowest level input that is significant to the fair-value measurement in its entirety. Our assessment of the significance of a particular input to the fair-value measurement in its entirety requires judgment, and considers factors specific to the asset or liability.
Transactions Expense	'
	(j) Transactions Expense
	Transactions expense includes acquisition-related expenses and other business development expenses, which are expensed as incurred. Acquisition-related expenses include closing costs, broker commissions and other professional fees, including legal and accounting fees related to acquisitions and potential acquisitions.
Management's Estimates	'
	(k) Management’s Estimates
	The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the condensed consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates made. On an on-going basis, we evaluate our estimates, including those related to the valuation of our real estate properties, contingent consideration, accounts receivable and deferred rent receivable, performance-based equity compensation plans, the completeness of accrued liabilities and Digital Realty Trust, Inc.’s qualification as a REIT. We base our estimates on historical experience, current market conditions, and various other assumptions that are believed to be reasonable under the circumstances. Actual results may vary from those estimates and those estimates could vary under different assumptions or conditions.
Segment And Geographic Information	'
	(l) Segment and Geographic Information
	All of our properties generate similar revenues and expenses related to tenant rent and reimbursements and operating expenses. The delivery of our products is consistent across all properties and although services are provided to a wide range of customers, the types of real estate services provided to them are standardized throughout the portfolio. As such, the properties in our portfolio have similar economic characteristics and the nature of the products and services provided to our customers and the method to distribute such services are consistent throughout the portfolio. Consequently, our properties qualify for aggregation into one reporting segment.
	Operating revenues from properties in the United States were $295.2 million and $274.0 million and outside the United States were $95.4 million and $84.4 million for the three months ended March 31, 2014 and 2013, respectively. We had long-lived assets located in the United States of $5.7 billion and $5.6 billion and outside the United States of $2.7 billion and $2.7 billion as of March 31, 2014 and December 31, 2013, respectively.
	Operating revenues from properties located in the United Kingdom were $54.9 million and $47.3 million, or 14.1% and 13.2% of total operating revenues, for the three months ended March 31, 2014 and 2013, respectively. No other foreign country comprised more than 10% of total operating revenues for each of these periods. We had long-lived assets located in the United Kingdom of $1.7 billion and $1.8 billion, or 20.8% and 21.1% of total long-lived assets, as of March 31, 2014 and December 31, 2013, respectively. No other foreign country comprised more than 10% of total long-lived assets as of March 31, 2014 and December 31, 2013.
	(m) Reclassifications
	Certain reclassifications to prior year amounts have been made to conform to the current year presentation. During the three months ended March 31, 2013, $1.3 million was reclassified from rental property operating and maintenance expense to change in fair value of contingent consideration.
Reclassifications	'
	(m) Reclassifications
	Certain reclassifications to prior year amounts have been made to conform to the current year presentation. During the three months ended March 31, 2013, $1.3 million was reclassified from rental property operating and maintenance expense to change in fair value of contingent consideration.
Recent Accounting Pronouncements	'
	(n) Recent Accounting Pronouncements
	In April 2014, Accounting Standards Update (ASU) 2014-08, Presentation of Financial Statements (Topic 205) and Property, Plant, and Equipment (Topic 360), Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity, was issued which amends the requirements for reporting discontinued operations. Under ASU 2014-08, a disposal of a component of an entity or a group of components of an entity is required to be reported in discontinued operations if the disposal represents a strategic shift that has (or will have) a major effect on an entity's operations and financial results when the component or group of components meets the criteria to be classified as held for sale or when the component or group of components is disposed of by sale or other than by sale. In addition, this ASU requires additional disclosures about both discontinued operations and the disposal of an individually significant component of an entity that does not qualify for discontinued operations presentation in the financial statements.  As permitted by the standard, the Company has elected to early adopt the provisions of ASU 2014-08 as of January 1, 2014 and will apply the provisions prospectively.
Digital Realty Trust, L.P. [Member]	'
Principles Of Consolidation And Basis Of Presentation	'
	(a) Principles of Consolidation and Basis of Presentation
	The accompanying interim condensed consolidated financial statements include all of the accounts of Digital Realty Trust, Inc., the Operating Partnership and the subsidiaries of the Operating Partnership. Intercompany balances and transactions have been eliminated.
	The accompanying interim condensed consolidated financial statements are unaudited, but have been prepared in accordance with U.S. generally accepted accounting principles (U.S. GAAP) for interim financial information and in compliance with the rules and regulations of the United States Securities and Exchange Commission. Accordingly, they do not include all of the disclosures required by U.S. GAAP for complete financial statements. In the opinion of management, all adjustments necessary for a fair presentation have been included. All such adjustments are considered to be of a normal recurring nature, except as otherwise indicated. The results of operations for the interim periods are not necessarily indicative of the results to be obtained for the full fiscal year. These condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and the notes thereto included in our annual report on Form 10-K, as amended, for the year ended December 31, 2013.
	The notes to the condensed consolidated financial statements of Digital Realty Trust, Inc. and the Operating Partnership have been combined to provide the following benefits:
		•	enhancing investors’ understanding of the Company and the Operating Partnership by enabling investors to view the business as a whole in the same manner as management views and operates the business;
		•	eliminating duplicative disclosure and providing a more streamlined and readable presentation since a substantial portion of the disclosure applies to both the Company and the Operating Partnership; and
		•	creating time and cost efficiencies through the preparation of one set of notes instead of two separate sets of notes.
	There are a few differences between the Company and the Operating Partnership, which are reflected in these condensed consolidated financial statements. We believe it is important to understand the differences between the Company and the Operating Partnership in the context of how we operate as an interrelated consolidated company. Digital Realty Trust, Inc.’s only material asset is its ownership of partnership interests of the Operating Partnership. As a result, Digital Realty Trust, Inc. does not conduct business itself, other than acting as the sole general partner of the Operating Partnership, issuing public equity from time to time and guaranteeing certain unsecured debt of the Operating Partnership and certain of its subsidiaries. Digital Realty Trust, Inc. itself does not hold any indebtedness but guarantees the unsecured debt of the Operating Partnership and certain of its subsidiaries, as disclosed in these notes. The Operating Partnership holds substantially all the assets of the Company and holds the ownership interests in the Company’s joint ventures. The Operating Partnership conducts the operations of the business and is structured as a partnership with no publicly traded equity. Except for net proceeds from public equity issuances by Digital Realty Trust, Inc., which are generally contributed to the Operating Partnership in exchange for partnership units, the Operating Partnership generates the capital required by the Company’s business through the Operating Partnership’s operations, by the Operating Partnership’s direct or indirect incurrence of indebtedness or through the issuance of partnership units.
	The presentation of noncontrolling interests in operating partnership, stockholders’ equity and partners’ capital are the main areas of difference between the condensed consolidated financial statements of Digital Realty Trust, Inc. and those of the Operating Partnership. The common limited partnership interests held by the limited partners in the Operating Partnership are presented as limited partners’ capital within partners’ capital in the Operating Partnership’s condensed consolidated financial statements and as noncontrolling interests in operating partnership within equity in Digital Realty Trust, Inc.’s condensed consolidated financial statements. The common and preferred partnership interests held by Digital Realty Trust, Inc. in the Operating Partnership are presented as general partner’s capital within partners’ capital in the Operating Partnership’s condensed consolidated financial statements and as preferred stock, common stock, additional paid-in capital and accumulated dividends in excess of earnings within stockholders’ equity in Digital Realty Trust, Inc.’s condensed consolidated financial statements. The differences in the presentations between stockholders’ equity and partners’ capital result from the differences in the equity issued at the Digital Realty Trust, Inc. and the Operating Partnership levels.
	To help investors understand the significant differences between the Company and the Operating Partnership, these consolidated financial statements present the following separate sections for each of the Company and the Operating Partnership:
		•	condensed consolidated face financial statements; and
		•	the following notes to the condensed consolidated financial statements:
		•	Debt of the Company and Debt of the Operating Partnership;
		•	Income per Share and Income per Unit; and
		•	Equity and Accumulated Other Comprehensive Loss, Net of the Company and Capital and Accumulated Other Comprehensive Income (Loss) of the Operating Partnership.
	In the sections that combine disclosure of Digital Realty Trust, Inc. and the Operating Partnership, these notes refer to actions or holdings as being actions or holdings of the Company. Although the Operating Partnership is generally the entity that enters into contracts and joint ventures and holds assets and debt, reference to the Company is appropriate because the business is one enterprise and the Company operates the business through the Operating Partnership.
Cash Equivalents	'
	(b) Cash Equivalents
	For the purpose of the condensed consolidated statements of cash flows, we consider short-term investments with original maturities of 90 days or less to be cash equivalents. As of March 31, 2014, cash equivalents consist of investments in money market instruments.
Investment In Unconsolidated Joint Ventures	'
	(c) Investment in Unconsolidated Joint Ventures
	The Company’s investment in unconsolidated joint ventures is accounted for using the equity method, whereby the investment is increased for capital contributed and our share of the joint ventures’ net income and decreased by distributions we receive and our share of any losses of the joint ventures.
	We amortize the difference between the cost of our investments in unconsolidated joint ventures and the book value of the underlying equity into equity in earnings from unconsolidated affiliates on a straight-line basis consistent with the lives of the underlying assets.
Capitalization Of Costs	'
	(d) Capitalization of Costs
	Direct and indirect project costs that are clearly associated with the development of properties are capitalized as incurred. Project costs include all costs directly associated with the development of a property, including construction costs, interest, property taxes, insurance, legal fees and costs of personnel working on the project. Indirect costs that do not clearly relate to the projects under development are not capitalized and are charged to expense as incurred.
	Capitalization of costs begins when the activities necessary to get the development project ready for its intended use begins, which include costs incurred before the beginning of construction. Capitalization of costs ceases when the development project is substantially complete and ready for its intended use. Determining when a development project commences, and when it is substantially complete and ready for its intended use involves a degree of judgment. We generally consider a development project to be substantially complete and ready for its intended use upon receipt of a certificate of occupancy. We cease cost capitalization if activities necessary for the development of the property have been suspended. Capitalized costs are allocated to the specific components of a project that are benefited.
	During the three months ended March 31, 2014 and 2013, we capitalized interest of approximately $5.3 million and $5.3 million, respectively. During the three months ended March 31, 2014 and 2013, we capitalized amounts relating to compensation expense of employees direct and incremental to construction and successful leasing activities of approximately $12.4  million and $10.1 million, respectively. Cash flows from capitalized leasing costs of $9.6 million and $10.8 million are included in improvements to and advances for investments in real estate in cash flows from investing activities in the condensed consolidated statements of cash flows for the three months ended March 31, 2014 and 2013, respectively.
Share Based Compensation	'
	(e) Share-Based Compensation
	The Company measures all share-based compensation awards at fair value on the date they are granted to employees and directors, and recognizes compensation cost, net of forfeitures, over the requisite service period for awards with only a service condition. The estimated fair value of the long-term incentive units and Class D Units (discussed in note 13) granted by us is being amortized on a straight-line basis over the expected service period.
	The fair value of share-based compensation awards that contain a market condition is measured using a lattice model and not adjusted based on actual achievement of the performance goals.
Income Taxes	'
	(f) Income Taxes
	Digital Realty Trust, Inc. has elected to be treated as a real estate investment trust (a “REIT”) for federal income tax purposes. As a REIT, Digital Realty Trust, Inc. generally is not required to pay federal corporate income tax to the extent taxable income is currently distributed to its stockholders.  If Digital Realty Trust, Inc. fails to qualify as a REIT in any taxable year, it will be subject to federal income tax (including any applicable alternative minimum tax) on its taxable income at regular corporate tax rates.
	The Company is subject to foreign, state and local income taxes in the jurisdictions in which it conducts business. The Company’s U.S. consolidated taxable REIT subsidiary is subject to both federal and state income taxes to the extent there is taxable income. Accordingly, the Company recognizes current and deferred income taxes for its taxable REIT subsidiaries, certain states and non-U.S. jurisdictions, as appropriate.
	We assess our significant tax positions in accordance with U.S. GAAP for all open tax years and determine whether we have any material unrecognized liabilities from uncertain tax benefits. If a tax position is not considered “more-likely-than-not” to be sustained solely on its technical merits, no benefits of the tax position are to be recognized (for financial statement purposes). As of March 31, 2014 and December 31, 2013, we have no assets or liabilities for uncertain tax positions. We classify interest and penalties from significant uncertain tax positions as interest expense and operating expense, respectively, in our condensed consolidated income statements. For the three months ended March 31, 2014 and 2013, we had no such interest or penalties. The tax year 2010 and thereafter remain open to examination by the major taxing jurisdictions with which the Company files tax returns.
	See Note 10 for further discussion on income taxes.
Presentation Of Transactional-Based Taxes	'
	(g) Presentation of Transactional-based Taxes
	We account for transactional-based taxes, such as value added tax, or VAT, for our international properties on a net basis.
Fee Income	'
	(h) Fee Income
	Occasionally, customers engage the company for certain services.  The nature of these services historically involves property management, construction management, and assistance with financing.  The proper revenue recognition of these services can be different, depending on whether the arrangements are service revenue or contractor type revenue.
	Service revenues are typically recognized on an equal monthly basis based on the minimum fee to be earned.  The monthly amounts could be adjusted depending on if certain performance milestones are met.
	Fee income also includes management fees. These fees arise from contractual agreements with entities in which we have a noncontrolling interest. The management fees are recognized as earned under the respective agreements. Management and other fee income related to partially owned entities are recognized to the extent attributable to the unaffiliated interest.
	Contractor type revenue for long-term contracts is recognized under the percentage-of-completion method of accounting. Revenues are determined by measuring the percentage of total costs incurred to date to estimated total costs for each construction management contract based on current estimates of costs to complete. Contract costs include all labor and benefits, materials, subcontracts, and an allocation of indirect costs related to contract performance. Indirect costs are allocated to projects based upon labor hours charged. Third party costs are included in construction management expense and their reimbursements are included in construction management revenue to the extent that the Company is the primary obligor for the third party costs. Otherwise, construction management revenue and expense is reflected net of third party costs. As long-term design-build projects extend over one or more years, revisions in cost and estimated earnings during the course of the work are reflected in the accounting period in which the facts which require the revision become known. At the time a loss on a design-build project becomes known, the entire amount of the estimated loss is recognized in the condensed consolidated financial statements. Change orders are recognized when they are approved by the client.
	Costs and estimated earnings in excess of billings on uncompleted construction management projects are included in other assets in the condensed consolidated balance sheets. Billings in excess of costs and estimated earnings on uncompleted construction management projects are included in accounts payable and other accrued liabilities in the condensed consolidated balance sheets. Customers are billed on a monthly basis at the end of each month, which can be in advance of work performed.
Assets And Liabilities Measured At Fair Value	'
	(i) Assets and Liabilities Measured at Fair Value
	Fair value under U.S. GAAP is a market-based measurement, not an entity-specific measurement. Therefore, our fair value measurements are determined based on the assumptions that market participants would use in pricing the asset or liability. As a basis for considering market participant assumptions in fair-value measurements, we use a fair-value hierarchy that distinguishes between market participant assumptions based on market data obtained from sources independent of the reporting entity (observable inputs that are classified within Levels 1 and 2 of the hierarchy) and the reporting entity’s own assumptions about market participant assumptions (unobservable inputs classified within Level 3 of the hierarchy).
	Level 1 inputs utilize quoted prices (unadjusted) in active markets for identical assets or liabilities that the Company has the ability to access. Level 2 inputs are inputs other than quoted prices included in Level 1 that are observable for the asset or liability, either directly or indirectly. Level 2 inputs may include quoted prices for similar assets and liabilities in active markets, as well as inputs that are observable for the asset or liability (other than quoted prices), such as interest rates, foreign exchange rates, and yield curves that are observable at commonly quoted intervals. Level 3 inputs are unobservable inputs for the asset or liability which are typically based on an entity’s own assumptions, as there is little, if any, related market activity. In instances where the determination of the fair-value measurement is based on inputs from different levels of the fair-value hierarchy, the level in the fair-value hierarchy within which the entire fair-value measurement falls is based on the lowest level input that is significant to the fair-value measurement in its entirety. Our assessment of the significance of a particular input to the fair-value measurement in its entirety requires judgment, and considers factors specific to the asset or liability.
Transactions Expense	'
	(j) Transactions Expense
	Transactions expense includes acquisition-related expenses and other business development expenses, which are expensed as incurred. Acquisition-related expenses include closing costs, broker commissions and other professional fees, including legal and accounting fees related to acquisitions and potential acquisitions.
Management's Estimates	'
	(k) Management’s Estimates
	The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the condensed consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates made. On an on-going basis, we evaluate our estimates, including those related to the valuation of our real estate properties, contingent consideration, accounts receivable and deferred rent receivable, performance-based equity compensation plans, the completeness of accrued liabilities and Digital Realty Trust, Inc.’s qualification as a REIT. We base our estimates on historical experience, current market conditions, and various other assumptions that are believed to be reasonable under the circumstances. Actual results may vary from those estimates and those estimates could vary under different assumptions or conditions.
Segment And Geographic Information	'
	(l) Segment and Geographic Information
	All of our properties generate similar revenues and expenses related to tenant rent and reimbursements and operating expenses. The delivery of our products is consistent across all properties and although services are provided to a wide range of customers, the types of real estate services provided to them are standardized throughout the portfolio. As such, the properties in our portfolio have similar economic characteristics and the nature of the products and services provided to our customers and the method to distribute such services are consistent throughout the portfolio. Consequently, our properties qualify for aggregation into one reporting segment.
	Operating revenues from properties in the United States were $295.2 million and $274.0 million and outside the United States were $95.4 million and $84.4 million for the three months ended March 31, 2014 and 2013, respectively. We had long-lived assets located in the United States of $5.7 billion and $5.6 billion and outside the United States of $2.7 billion and $2.7 billion as of March 31, 2014 and December 31, 2013, respectively.
	Operating revenues from properties located in the United Kingdom were $54.9 million and $47.3 million, or 14.1% and 13.2% of total operating revenues, for the three months ended March 31, 2014 and 2013, respectively. No other foreign country comprised more than 10% of total operating revenues for each of these periods. We had long-lived assets located in the United Kingdom of $1.7 billion and $1.8 billion, or 20.8% and 21.1% of total long-lived assets, as of March 31, 2014 and December 31, 2013, respectively. No other foreign country comprised more than 10% of total long-lived assets as of March 31, 2014 and December 31, 2013.
	(m) Reclassifications
	Certain reclassifications to prior year amounts have been made to conform to the current year presentation. During the three months ended March 31, 2013, $1.3 million was reclassified from rental property operating and maintenance expense to change in fair value of contingent consideration.
Recent Accounting Pronouncements	'
	(n) Recent Accounting Pronouncements
	In April 2014, Accounting Standards Update (ASU) 2014-08, Presentation of Financial Statements (Topic 205) and Property, Plant, and Equipment (Topic 360), Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity, was issued which amends the requirements for reporting discontinued operations. Under ASU 2014-08, a disposal of a component of an entity or a group of components of an entity is required to be reported in discontinued operations if the disposal represents a strategic shift that has (or will have) a major effect on an entity's operations and financial results when the component or group of components meets the criteria to be classified as held for sale or when the component or group of components is disposed of by sale or other than by sale. In addition, this ASU requires additional disclosures about both discontinued operations and the disposal of an individually significant component of an entity that does not qualify for discontinued operations presentation in the financial statements.  As permitted by the standard, the Company has elected to early adopt the provisions of ASU 2014-08 as of January 1, 2014 and will apply the provisions prospectively.

Investment_In_Unconsolidated_J1

Investment In Unconsolidated Joint Ventures (Tables)	3 Months Ended
	Mar. 31, 2014
Summary Of Financial Information For Joint Ventures	'
		As of March 31, 2014					Three Months Ended March 31, 2014
	2014	Net Investment in Properties	Total Assets	Mortgage Loans	Total Liabilities	Equity / (Deficit)	Revenues	Property Operating Expense	Net Operating Income	Net Income (Loss)
	Total unconsolidated joint ventures	$            625,075	$       728,716	$        360,581	$        458,986	$       269,730	$         21,919	$           (5,009)	$         16,910	$           5,894
	Our investment in and share of equity in earnings					$         81,411				$           2,581
	of unconsolidated joint ventures
		As of December 31, 2013					Three Months Ended March 31, 2013
	2013	Net Investment in Properties	Total Assets	Mortgage Loans	Total Liabilities	Equity / (Deficit)	Revenues	Property Operating Expense	Net Operating Income	Net Income (Loss)
	Total unconsolidated joint ventures	$            584,837	$       676,015	$        337,953	$        444,062	$       231,953	$         11,099	$           (2,687)	$           8,412	$           4,931
	Our investment in and share of equity in earnings					$         70,504				$           2,335
	of unconsolidated joint ventures
Digital Realty Trust, L.P. [Member]	'
Summary Of Financial Information For Joint Ventures	'
		As of March 31, 2014					Three Months Ended March 31, 2014
	2014	Net Investment in Properties	Total Assets	Mortgage Loans	Total Liabilities	Equity / (Deficit)	Revenues	Property Operating Expense	Net Operating Income	Net Income (Loss)
	Total unconsolidated joint ventures	$            625,075	$       728,716	$        360,581	$        458,986	$       269,730	$         21,919	$           (5,009)	$         16,910	$           5,894
	Our investment in and share of equity in earnings					$         81,411				$           2,581
	of unconsolidated joint ventures
		As of December 31, 2013					Three Months Ended March 31, 2013
	2013	Net Investment in Properties	Total Assets	Mortgage Loans	Total Liabilities	Equity / (Deficit)	Revenues	Property Operating Expense	Net Operating Income	Net Income (Loss)
	Total unconsolidated joint ventures	$            584,837	$       676,015	$        337,953	$        444,062	$       231,953	$         11,099	$           (2,687)	$           8,412	$           4,931
	Our investment in and share of equity in earnings					$         70,504				$           2,335
	of unconsolidated joint ventures

Acquired_Intangible_Assets_And1

Acquired Intangible Assets And Liabilities (Tables)	3 Months Ended
	Mar. 31, 2014
Finite-Lived Intangible Assets [Line Items]	'
Summary Of Acquired Intangible Assets	'
		Balance as of
	(Amounts in thousands)	31-Mar-14		31-Dec-13
	Acquired in-place lease value:
	Gross amount	$            721,961		$           725,458
	Accumulated amortization	-438,789		-423,549
	Net	$            283,172		$           301,909
	Acquired above-market leases:
	Gross amount	$            133,064		$           132,750
	Accumulated amortization	-83,543		-80,486
	Net	$               49,521		$             52,264
	Acquired below-market leases:
	Gross amount	$            290,365		$           291,638
	Accumulated amortization	-167,213		-161,369
	Net	$            123,152		$           130,269
Schedule Of Estimated Annual Amortization Of Below Market Leases	'
	(Amounts in thousands)
	Remainder of 2014		$           7,171
	2015		8,862
	2016		7,540
	2017		6,038
	2018		4,419
	Thereafter		39,601
	Total		$         73,631
Schedule Of Estimated Annual Amortization Of Acquired In Place Leases	'
	(Amounts in thousands)
	Remainder of 2014		$         39,761
	2015		44,295
	2016		41,180
	2017		28,363
	2018		25,997
	Thereafter		103,576
	Total		$       283,172
Digital Realty Trust, L.P. [Member]	'
Finite-Lived Intangible Assets [Line Items]	'
Summary Of Acquired Intangible Assets	'
		Balance as of
	(Amounts in thousands)	31-Mar-14		31-Dec-13
	Acquired in-place lease value:
	Gross amount	$            721,961		$           725,458
	Accumulated amortization	-438,789		-423,549
	Net	$            283,172		$           301,909
	Acquired above-market leases:
	Gross amount	$            133,064		$           132,750
	Accumulated amortization	-83,543		-80,486
	Net	$               49,521		$             52,264
	Acquired below-market leases:
	Gross amount	$            290,365		$           291,638
	Accumulated amortization	-167,213		-161,369
	Net	$            123,152		$           130,269
Schedule Of Estimated Annual Amortization Of Below Market Leases	'
	(Amounts in thousands)
	Remainder of 2014		$           7,171
	2015		8,862
	2016		7,540
	2017		6,038
	2018		4,419
	Thereafter		39,601
	Total		$         73,631
Schedule Of Estimated Annual Amortization Of Acquired In Place Leases	'
	(Amounts in thousands)
	Remainder of 2014		$         39,761
	2015		44,295
	2016		41,180
	2017		28,363
	2018		25,997
	Thereafter		103,576
	Total		$       283,172

Debt_Of_The_Operating_Partners1

Debt Of The Operating Partnership (Tables) (Digital Realty Trust, L.P. [Member])	3 Months Ended
	Mar. 31, 2014
Summary Of Outstanding Indebtedness Of The Operating Partnership	'
	Indebtedness		Interest Rate at			Maturity Date		Principal Outstanding			Principal Outstanding
			31-Mar-14					31-Mar-14			31-Dec-13
	Global revolving credit facility		Various	-1		Nov. 3, 2017		$                  790,500	-2		$                  724,668	-2
	Unsecured term loan		Various	(3)(8)		Apr. 16, 2017		$               1,026,891	-4		$               1,020,984	-4
	Unsecured senior notes:
	Prudential Shelf Facility:
	Series C		9.68%			Jan. 6, 2016		25,000			25,000
	Series D		4.57%			Jan. 20, 2015		50,000			50,000
	Series E		5.73%			Jan. 20, 2017		50,000			50,000
	Series F		4.50%			Feb. 3, 2015		17,000			17,000
	Total Prudential Shelf Facility							142,000			142,000
	Senior Notes:
	4.50% notes due 2015		4.50%			Jul. 15, 2015		375,000			375,000
	5.875% notes due 2020		5.88%			Feb. 1, 2020		500,000			500,000
	5.25% notes due 2021		5.25%			Mar. 15, 2021		400,000			400,000
	3.625% notes due 2022		3.62%			Oct. 1, 2022		300,000			300,000
	4.25% notes due 2025		4.25%			Jan. 17, 2025		666,480	-9		662,280	-9
	Unamortized discounts							-14,632			-15,048
	Total senior notes, net of discount							2,226,848			2,222,232
	Total unsecured senior notes, net of discount							2,368,848			2,364,232
	Exchangeable senior debentures:
	5.50% exchangeable senior debentures due 2029		5.50%			Apr. 15, 2029	-5	266,400			266,400
	Total exchangeable senior debentures							266,400			266,400
	Indebtedness		Interest Rate at			Maturity Date		Principal Outstanding			Principal Outstanding
			31-Mar-14					31-Mar-14			31-Dec-13
	Mortgage loans:
	Secured Term Debt (6)(7)		5.65%			Nov. 11, 2014		$                  132,157			$                  132,966
	200 Paul Avenue 1-4 (7)		5.74%			Oct. 8, 2015		70,198			70,713
	2045 & 2055 LaFayette Street (7)		5.93%			Feb. 6, 2017		63,351			63,623
	34551 Ardenwood Boulevard 1-4 (7)		5.95%			Nov. 11, 2016		51,942			52,152
	1100 Space Park Drive (7)		5.89%			Dec. 11, 2016		51,904			52,115
	600 West Seventh Street		5.80%			Mar. 15, 2016		49,127			49,548
	150 South First Street (7)		6.30%			Feb. 6, 2017		49,896			50,097
	2334 Lundy Place (7)		5.96%			Nov. 11, 2016		37,778			37,930
	Cressex 1 (10)		5.68%			Oct. 16, 2014		28,636	-9		28,583	-9
	636 Pierce Street		5.27%			Apr. 15, 2023		-	-11		26,327
	8025 North Interstate 35		4.09%			Mar. 6, 2016		6,251			6,314
	Manchester Technopark (10)		5.68%			Oct. 16, 2014		8,712	-9		8,695	-9
	731 East Trade Street		8.22%			Jul. 1, 2020		4,101			4,186
	Unamortized net premiums							689			2,359
	Total mortgage loans, net of premiums							554,742			585,608
	Total indebtedness							$               5,007,381			$               4,961,892
		-1		The interest rate for borrowings under the global revolving credit facility equals the applicable index plus a margin of 110 basis points, which is based on the credit rating of our long-term debt. An annual facility fee of 20 basis points, which is based on the credit rating of our long-term debt, is due and payable quarterly on the total commitment amount of the facility.  Two six-month extensions are available, which we may exercise if certain conditions are met.
		-2		Balances as of March 31, 2014 and December 31, 2013 are as follows (balances, in thousands):
	Denomination of Draw		Balance as of March 31, 2014			Weighted-average interest rate		Balance as of December 31, 2013			Weighted-average interest rate
	Floating Rate Borrowing (a)
	U.S. dollar ($)		$              397,000			1.25%		$                466,000			1.27%
	British pound sterling (£)		126,631	(c)		1.60%		-			-
	Euro (€)		74,353	(c)		1.33%		78,335	(d)		1.33%
	Australian dollar (AUD)		73,185	(c)		3.73%		67,212	(d)		3.70%
	Hong Kong dollar (HKD)		66,677	(c)		1.31%		57,390	(d)		1.31%
	Japanese yen (JPY)		13,174	(c)		1.20%		12,858	(d)		1.21%
	Canadian dollar (CAD)		34,480	(c)		2.32%		14,873	(d)		2.32%
	Total		$              785,500			1.60%		$                696,668			1.53%
	Base Rate Borrowing (b)
	U.S. dollar ($)		$                  5,000			3.35%		$                  28,000			3.35%
	Total borrowings		$              790,500			1.61%		$                724,668			1.60%
		(a)		The interest rates for floating rate borrowings under the global revolving credit facility equal the applicable index plus a margin of 110 basis points, which is based on the credit rating of our long-term debt.
		(b)		The interest rates for base rate borrowings under the global revolving credit facility equal the U.S. Prime Rate plus a margin of 10 basis points, which is based on the credit rating of our long-term debt.
		(c)		Based on exchange rates of $1.67 to £1.00, $1.38 to €1.00, $0.93 to 1.00 AUD, $0.13 to 1.00 HKD, $0.01 to 1.00 JPY and $0.90 to 1.00 CAD, respectively, as of March 31, 2014.
		(d)		Based on exchange rates of $1.37 to €1.00, $0.89 to 1.00 AUD, $0.13 to 1.00 HKD, $0.01 to 1.00 JPY and $0.94 to 1.00 CAD, respectively, as of December 31, 2013.
		-3		Interest rates are based on our senior unsecured debt ratings and are 120 basis points over the applicable index for floating rate advances.  Two six-month extensions are available, which we may exercise if certain conditions are met.
		-4		Balances as of March 31, 2014 and December 31, 2013 are as follows (balances, in thousands):
Denomination of Draw		Balance as of March 31, 2014			Weighted-average interest rate		Balance as of December 31, 2013			Weighted-average interest rate
U.S. dollar ($)		$               410,905			1.36%	(b)	$               410,905			1.37%	(d)
Singapore dollar (SGD)		181,710	(a)		1.42%	(b)	180,918	(c)		1.40%	(d)
British pound sterling (£)		201,485	(a)		1.72%		200,216	(c)		1.72%
Euro (€)		137,001	(a)		1.43%		136,743	(c)		1.43%
Australian dollar (AUD)		95,790	(a)		3.82%		92,202	(c)		3.78%
Total		$            1,026,891			1.68%	(b)	$            1,020,984			1.67%	(d)
	(a)		Based on exchange rates of $0.80 to 1.00 SGD, $1.67 to £1.00, $1.38 to €1.00 and $0.93 to 1.00 AUD, respectively, as of March 31, 2014.
	(b)		As of March 31, 2014, the weighted-average interest rate reflecting interest rate swaps was 1.92% (U.S. dollar), 2.00% (Singapore dollar) and 2.01% (Total).  See Note 14 for further discussion on interest rate swaps.
	(c)		Based on exchange rates of $0.79 to 1.00 SGD, $1.66 to £1.00, $1.37 to €1.00 and $0.89 to 1.00 AUD, respectively, as of December 31, 2013.
	(d)		As of December 31, 2013, the weighted-average interest rate reflecting interest rate swaps was 1.92% (U.S. dollar), 2.00% (Singapore dollar) and 2.00% (Total).  See Note 14 for further discussion on interest rate swaps.
	-5		The 2029 Debentures were redeemed in April 2014.
	-6		This amount represents six mortgage loans secured by our interests in 36 NE 2nd Street, 3300 East Birch Street, 100 & 200 Quannapowitt Parkway, 300 Boulevard East, 4849 Alpha Road, and 11830 Webb Chapel Road. Each of these loans is cross-collateralized by the six properties.
	-7		The respective borrower’s assets and credit are not available to satisfy the debts and other obligations of affiliates or any other person.
	-8		We have entered into interest rate swap agreements as a cash flow hedge for interest generated by the U.S. dollar and Singapore dollar tranches of the unsecured term loan. See note 14 for further information.
	-9		Based on exchange rate of $1.67 to £1.00 as of March 31, 2014 and $1.66 to £1.00 as of December 31, 2013.
	-10		These loans are also secured by a £7.8 million letter of credit. These loans are cross-collateralized by the two properties.
	-11		On March 5, 2014, we contributed this property to our joint venture with an investment fund managed by Prudential Real Estate Investors which was formed in September 2013. Also on March 5, 2014, the joint venture assumed the debt and repaid in full the outstanding balance of $26.1 million on the mortgage loan.
Schedule Of Debt Maturities And Principal Maturities	'
			Global Revolving Credit Facility (1)		Unsecured Term Loan (1)		Prudential Shelf Facility	Senior Notes		Exchangeable Senior Debentures (2)		Mortgage Loans (3)	Total
													Debt
	Remainder of 2014		$                      -		$                  -		$                -	$               -		$          266,400		$       175,817	$      442,217
	2015		-		-		67,000	375,000		-		75,493	517,493
	2016		-		-		25,000	-		-		191,979	216,979
	2017		790,500		1,026,891		50,000	-		-		108,395	1,975,786
	2018		-		-		-	-		-		593	593
	Thereafter		-		-		-	1,866,480		-		1,776	1,868,256
	Subtotal		$          790,500		$   1,026,891		$     142,000	$		$          266,400		$       554,053	$   5,021,324
								2,241,480
	Unamortized discount		-		-		-	-14,632		-		-	-14,632
	Unamortized premium		-		-		-	-		-		689	689
	Total		$          790,500		$   1,026,891		$     142,000	$		$          266,400		$       554,742	$   5,007,381
								2,226,848
		-1		Subject to two six-month extension options exercisable by us. The bank group is obligated to grant the extension options provided we give proper notice, we make certain representations and warranties and no default exists under the global revolving credit facility and the unsecured term loan, as applicable.
		-2		The 2029 Debentures were redeemed in April 2014.
		-3		Our mortgage loans are generally non-recourse to us, subject to carve-outs for specified actions by us or specified undisclosed environmental liabilities. As of March 31, 2014, we provided partial letter of credit support with respect to approximately $37.3 million of the outstanding mortgage indebtedness (based on exchange rates as of March 31, 2014).
Global Revolving Credit Facility [Member]	'
Schedule Of Balances And Foreign Currency Translation Revolving Credit Facilities	'
	Denomination of Draw		Balance as of March 31, 2014			Weighted-average interest rate		Balance as of December 31, 2013			Weighted-average interest rate
	Floating Rate Borrowing (a)
	U.S. dollar ($)		$              397,000			1.25%		$                466,000			1.27%
	British pound sterling (£)		126,631	(c)		1.60%		-			-
	Euro (€)		74,353	(c)		1.33%		78,335	(d)		1.33%
	Australian dollar (AUD)		73,185	(c)		3.73%		67,212	(d)		3.70%
	Hong Kong dollar (HKD)		66,677	(c)		1.31%		57,390	(d)		1.31%
	Japanese yen (JPY)		13,174	(c)		1.20%		12,858	(d)		1.21%
	Canadian dollar (CAD)		34,480	(c)		2.32%		14,873	(d)		2.32%
	Total		$              785,500			1.60%		$                696,668			1.53%
	Base Rate Borrowing (b)
	U.S. dollar ($)		$                  5,000			3.35%		$                  28,000			3.35%
	Total borrowings		$              790,500			1.61%		$                724,668			1.60%
		(a)		The interest rates for floating rate borrowings under the global revolving credit facility equal the applicable index plus a margin of 110 basis points, which is based on the credit rating of our long-term debt.
		(b)		The interest rates for base rate borrowings under the global revolving credit facility equal the U.S. Prime Rate plus a margin of 10 basis points, which is based on the credit rating of our long-term debt.
		(c)		Based on exchange rates of $1.67 to £1.00, $1.38 to €1.00, $0.93 to 1.00 AUD, $0.13 to 1.00 HKD, $0.01 to 1.00 JPY and $0.90 to 1.00 CAD, respectively, as of March 31, 2014.
		(d)		Based on exchange rates of $1.37 to €1.00, $0.89 to 1.00 AUD, $0.13 to 1.00 HKD, $0.01 to 1.00 JPY and $0.94 to 1.00 CAD, respectively, as of December 31, 2013.
Unsecured Term Loan [Member]	'
Schedule Of Balances And Foreign Currency Translation Revolving Credit Facilities	'
	Denomination of Draw		Balance as of March 31, 2014			Weighted-average interest rate		Balance as of December 31, 2013			Weighted-average interest rate
	U.S. dollar ($)		$               410,905			1.36%	(b)	$               410,905			1.37%	(d)
	Singapore dollar (SGD)		181,710	(a)		1.42%	(b)	180,918	(c)		1.40%	(d)
	British pound sterling (£)		201,485	(a)		1.72%		200,216	(c)		1.72%
	Euro (€)		137,001	(a)		1.43%		136,743	(c)		1.43%
	Australian dollar (AUD)		95,790	(a)		3.82%		92,202	(c)		3.78%
	Total		$            1,026,891			1.68%	(b)	$            1,020,984			1.67%	(d)
		(a)		Based on exchange rates of $0.80 to 1.00 SGD, $1.67 to £1.00, $1.38 to €1.00 and $0.93 to 1.00 AUD, respectively, as of March 31, 2014.
		(b)		As of March 31, 2014, the weighted-average interest rate reflecting interest rate swaps was 1.92% (U.S. dollar), 2.00% (Singapore dollar) and 2.01% (Total).  See Note 14 for further discussion on interest rate swaps.
		(c)		Based on exchange rates of $0.79 to 1.00 SGD, $1.66 to £1.00, $1.37 to €1.00 and $0.89 to 1.00 AUD, respectively, as of December 31, 2013.
		(d)		As of December 31, 2013, the weighted-average interest rate reflecting interest rate swaps was 1.92% (U.S. dollar), 2.00% (Singapore dollar) and 2.00% (Total).  See Note 14 for further discussion on interest rate swaps.

Income_Per_Share_Tables

Income Per Share (Tables)	3 Months Ended
	Mar. 31, 2014
Income Per Share [Abstract]	'
Summary Of Basic And Diluted Earnings Per Share	'
		Three Months Ended March 31,
		2014	2013
	Net income available to common stockholders	$             34,186	$            42,657
	Weighted average shares outstanding—basic	128,535,995	126,445,285
	Potentially dilutive common shares:
	Stock options	51,909	70,877
	Series H Cumulative Redeemable Preferred Stock	388,340	-
	Unvested incentive units	160,717	222,177
	Weighted average shares outstanding—diluted	129,136,961	126,738,339
	Income per share:
	Basic	$                 0.27	$                0.34
	Diluted	$                 0.26	$                0.34
Schedule Of Antidilutive Securities Excluded From Computation Of Earnings Per Share	'
		Three Months Ended March 31,
		2014	2013
	Weighted average of Operating Partnership common	2,606,669	2,442,756
	units not owned by Digital Realty Trust, Inc.
	Potentially dilutive 2029 Debentures	6,806,254	6,590,470
	Potentially dilutive Series D Cumulative Convertible	-	1,909,146
	Preferred Stock
	Potentially dilutive Series E Cumulative Redeemable	5,674,269	4,381,703
	Preferred Stock
	Potentially dilutive Series F Cumulative Redeemable	3,598,608	2,778,866
	Preferred Stock
	Potentially dilutive Series G Cumulative Redeemable	4,920,508	-
	Preferred Stock
		23,606,308	18,102,941

Income_Per_Unit_Tables

Income Per Unit (Tables)	3 Months Ended
	Mar. 31, 2014
Summary Of Basic And Diluted Earnings Per Share	'
		Three Months Ended March 31,
		2014	2013
	Net income available to common stockholders	$             34,186	$            42,657
	Weighted average shares outstanding—basic	128,535,995	126,445,285
	Potentially dilutive common shares:
	Stock options	51,909	70,877
	Series H Cumulative Redeemable Preferred Stock	388,340	-
	Unvested incentive units	160,717	222,177
	Weighted average shares outstanding—diluted	129,136,961	126,738,339
	Income per share:
	Basic	$                 0.27	$                0.34
	Diluted	$                 0.26	$                0.34
Schedule Of Antidilutive Securities Excluded From Computation Of Earnings Per Share	'
		Three Months Ended March 31,
		2014	2013
	Weighted average of Operating Partnership common	2,606,669	2,442,756
	units not owned by Digital Realty Trust, Inc.
	Potentially dilutive 2029 Debentures	6,806,254	6,590,470
	Potentially dilutive Series D Cumulative Convertible	-	1,909,146
	Preferred Stock
	Potentially dilutive Series E Cumulative Redeemable	5,674,269	4,381,703
	Preferred Stock
	Potentially dilutive Series F Cumulative Redeemable	3,598,608	2,778,866
	Preferred Stock
	Potentially dilutive Series G Cumulative Redeemable	4,920,508	-
	Preferred Stock
		23,606,308	18,102,941
Digital Realty Trust, L.P. [Member]	'
Summary Of Basic And Diluted Earnings Per Share	'
		Three Months Ended March 31,
		2014	2013
	Net income available to common unitholders	$            34,879	$            43,481
	Weighted average units outstanding--basic	131,142,664	128,888,041
	Potentially dilutive common units:
	Stock options	51,909	70,877
	Series H Cumulative Redeemable Preferred Units	388,340	-
	Unvested incentive units	160,717	222,177
	Weighted average units outstanding--diluted	131,743,630	129,181,095
	Income per unit:
	Basic	$                0.27	$                0.34
	Diluted	$                0.26	$                0.34
Schedule Of Antidilutive Securities Excluded From Computation Of Earnings Per Share	'
		Three Months Ended March 31,
		2014	2013
	Potentially dilutive 2029 Debentures	6,806,254	6,590,470
	Potentially dilutive Series D Cumulative Convertible	-	1,909,146
	Preferred Units
	Potentially dilutive Series E Cumulative Redeemable	5,674,269	4,381,703
	Preferred Units
	Potentially dilutive Series F Cumulative Redeemable	3,598,608	2,778,866
	Preferred Units
	Potentially dilutive Series G Cumulative Redeemable	4,920,508	-
	Preferred Units
		20,999,639	15,660,185

Equity_And_Accumulated_Other_C1

Equity And Accumulated Other Comprehensive Income (Loss), Net (Tables)	3 Months Ended
	Mar. 31, 2014
Equity And Accumulated Other Comprehensive Income (Loss), Net [Abstract]	'
Ownership Interest In The Operating Partnership	'
			31-Mar-14					31-Dec-13
			Number of units		Percentage of total			Number of units		Percentage of total
	Digital Realty Trust, Inc.		128,606,462		97.6	%		128,455,350		97.7	%
	Noncontrolling interests consist of:
	Common units held by third parties		1,491,814		1.1			1,491,814		1.2
	Incentive units held by employees and		1,633,797		1.3			1,475,207		1.1
	directors (see note 13)
			131,732,073		100.0	%		131,422,371		100.0	%
Summary Of Activity For Noncontrolling Interests In The Operating Partnership	'
			Common Units		Incentive Units		Total
	As of December 31, 2013		1,491,814		1,475,207		2,967,021
	Conversion of incentive units held by employees and directors		-		-4,438		-4,438
	for shares of Digital Realty Trust, Inc. common stock (1)
	Cancellation of incentive units held by employees and directors		-		-18,773		-18,773
	Grant of incentive units to employees and directors		-		181,801		181,801
	As of March 31, 2014		1,491,814		1,633,797		3,125,611
		-1		This redemption was recorded as a reduction to noncontrolling interests in the Operating Partnership and an increase to common stock and additional paid in capital based on the book value per unit in the accompanying condensed consolidated balance sheet of Digital Realty Trust, Inc.
Schedule Of Dividends/Distributions	'
	Date dividend declared		Dividend payable date		Series E Preferred Stock (1)		Series F Preferred Stock (2)		Series G Preferred Stock (3)		Common Stock (4)
	11-Feb-14		31-Mar-14		$            5,031		$             3,023		$             3,672		$          106,743
					$            5,031		$             3,023		$             3,672		$          106,743
		-1		$1.750 annual rate of dividend per share.
		-2		$1.656 annual rate of dividend per share.
		-3		$1.469 annual rate of dividend per share.
		-4		$3.320 annual rate of dividend per share.
Schedule Of Accumulated Other Comprehensive Income (Loss)	'
			Foreign currency translation adjustments		Cash flow hedge adjustments		Accumulated other comprehensive income, net
	Balance as of December 31, 2013		$                 11,745		$                 (1,054)		$                 10,691
	Net current period change		3,743		-1,316		2,427
	Reclassification to interest expense from		-		829		829
	interest rate swaps
	Balance as of March 31, 2014		$                 15,488		$                 (1,541)		$                 13,947

Capital_And_Accumulated_Other_1

Capital And Accumulated Other Comprehensive Income (Loss) (Tables)	3 Months Ended
	Mar. 31, 2014
Schedule Of Dividends/Distributions	'
	Date dividend declared		Dividend payable date		Series E Preferred Stock (1)	Series F Preferred Stock (2)	Series G Preferred Stock (3)	Common Stock (4)
	11-Feb-14		31-Mar-14		$            5,031	$             3,023	$             3,672	$          106,743
					$            5,031	$             3,023	$             3,672	$          106,743
		-1		$1.750 annual rate of dividend per share.
		-2		$1.656 annual rate of dividend per share.
		-3		$1.469 annual rate of dividend per share.
		-4		$3.320 annual rate of dividend per share.
Schedule Of Accumulated Other Comprehensive Income (Loss)	'
			Foreign currency translation adjustments		Cash flow hedge adjustments	Accumulated other comprehensive income, net
	Balance as of December 31, 2013		$                 11,745		$                 (1,054)	$                 10,691
	Net current period change		3,743		-1,316	2,427
	Reclassification to interest expense from		-		829	829
	interest rate swaps
	Balance as of March 31, 2014		$                 15,488		$                 (1,541)	$                 13,947
Digital Realty Trust, L.P. [Member]	'
Schedule Of Dividends/Distributions	'
	Date distribution declared		Distribution payable date		Series E Preferred Units (1)	Series F Preferred Units (2)	Series G Preferred Units (3)	Common Units (4)
	11-Feb-14		31-Mar-14		$            5,031	$             3,023	$             3,672	$          109,378
					$            5,031	$             3,023	$             3,672	$          109,378
		-1		$1.750 annual rate of distribution per unit.
		-2		$1.656 annual rate of distribution per unit.
		-3		$1.469 annual rate of distribution per unit.
		-4		$3.320 annual rate of distribution per unit.
Schedule Of Accumulated Other Comprehensive Income (Loss)	'
			Foreign currency translation adjustments		Cash flow hedge adjustments	Accumulated other comprehensive income
	Balance as of December 31, 2013		$                 10,235		$                 (1,778)	$                   8,457
	Net current period change		3,819		-1,343	2,476
	Reclassification to interest expense from		-		846	846
	interest rate swaps
	Balance as of March 31, 2014		$                 14,054		$                 (2,275)	$                 11,779

Incentive_Plan_Tables

Incentive Plan (Tables)	3 Months Ended
	Mar. 31, 2014
Summary Of Long-Term Incentive Unit Activity	'
	Unvested Units		Units		Weighted-Average Grant Date Fair Value
	Unvested, beginning of period		440,951		$                      62.42
	Granted		181,801		52.15
	Vested		-289,564		59.13
	Cancelled or expired		-18,773		65.21
	Unvested, end of period		314,415		59.34
Performance Based Awards	'
	Level		RMS Relative Performance		Performance Vesting Percentage
			< 0 basis points		0%
	Threshold Level		0 points		25%
	Target Level		325 basis points		50%
	High Level		≥ 650 basis points		100%
Summary Of Incentive Award Plan's Stock Option	'
		Period Ended
		31-Mar-14
		Shares	Weighted average exercise price
	Options outstanding, beginning of period	123,690	$              30.13
	Exercised	-917	41.73
	Cancelled / Forfeited	-	-
	Options outstanding, end of period	122,773	$              30.04
	Exercisable, end of period	122,773	$              30.04
Summary Of Stock Options Outstanding And Exercisable	'
	Options outstanding and exercisable
	Exercise price	Number outstanding	Weighted average remaining contractual life (years)	Weighted average exercise price	Aggregate intrinsic value
	$12.00 - 13.02	34,870	0.58	$          12.00	$      1,432,460
	$20.37 - 28.09	17,000	1.64	21.28	540,630
	$33.18 - 41.73	70,903	3.05	41.02	855,416
		122,773	2.15	$          30.04	$      2,828,506
Summary Of Restricted Stock Activity	'
	Unvested Shares		Shares		Weighted-Average Grant Date Fair Value
	Unvested, beginning of period		255,081		$                      63.35
	Granted		158,780		52.11
	Vested		-70,485		60.50
	Cancelled or expired		-13,023		65.21
	Unvested, end of period		330,353		58.48
Digital Realty Trust, L.P. [Member]	'
Summary Of Long-Term Incentive Unit Activity	'
	Unvested Units		Units		Weighted-Average Grant Date Fair Value
	Unvested, beginning of period		440,951		$                      62.42
	Granted		181,801		52.15
	Vested		-289,564		59.13
	Cancelled or expired		-18,773		65.21
	Unvested, end of period		314,415		59.34
Performance Based Awards	'
	Level		RMS Relative Performance		Performance Vesting Percentage
			< 0 basis points		0%
	Threshold Level		0 points		25%
	Target Level		325 basis points		50%
	High Level		≥ 650 basis points		100%
Summary Of Incentive Award Plan's Stock Option	'
		Period Ended
		31-Mar-14
		Shares	Weighted average exercise price
	Options outstanding, beginning of period	123,690	$              30.13
	Exercised	-917	41.73
	Cancelled / Forfeited	-	-
	Options outstanding, end of period	122,773	$              30.04
	Exercisable, end of period	122,773	$              30.04
Summary Of Stock Options Outstanding And Exercisable	'
	Options outstanding and exercisable
	Exercise price	Number outstanding	Weighted average remaining contractual life (years)	Weighted average exercise price	Aggregate intrinsic value
	$12.00 - 13.02	34,870	0.58	$          12.00	$      1,432,460
	$20.37 - 28.09	17,000	1.64	21.28	540,630
	$33.18 - 41.73	70,903	3.05	41.02	855,416
		122,773	2.15	$          30.04	$      2,828,506
Summary Of Restricted Stock Activity	'
	Unvested Shares		Shares		Weighted-Average Grant Date Fair Value
	Unvested, beginning of period		255,081		$                      63.35
	Granted		158,780		52.11
	Vested		-70,485		60.50
	Cancelled or expired		-13,023		65.21
	Unvested, end of period		330,353		58.48

Derivative_Instruments_Tables

Derivative Instruments (Tables)	3 Months Ended
	Mar. 31, 2014
Schedule Of Outstanding Derivative Instruments	'
	Notional Amount								Fair Value at Significant Other Observable Inputs (Level 2)
	As of		As of		Type of Derivative	Strike Rate	Effective Date	Expiration Date	As of	As of
	31-Mar-14		31-Dec-13						31-Mar-14	31-Dec-13
	Currently-paying contracts
	$    410,905	-1	$    410,905	-1	Swap	0.717	Various	Various	$            (234)	$              (76)
	150,696	-2	150,040	-2	Swap	0.925	Jul. 17, 2012	Apr. 18, 2017	474	131
	561,601		560,945						240	55
	Forward-starting contracts
	150,000	-3	-		Forward-starting Swap	2.091	Jul. 15, 2014	Jul. 15, 2019	-681	-
	Total
	$    711,601		$    560,945						$            (441)	$              55
		-1		Represents the U.S. dollar tranche of the unsecured term loan.
		-2		Represents a portion of the Singapore dollar tranche of the unsecured term loan. Translation to U.S. dollars is based on exchange rate of $0.80 to 1.00 SGD as of March 31, 2014 and $0.79 to 1.00 SGD as of December 31, 2013.
		-3		In January 2014, we entered into a new forward-starting swap agreement with a notional amount of $150.0 million requiring fixed rate interest payments of 2.091% for a five-year period that commences in July 2014.
Digital Realty Trust, L.P. [Member]	'
Schedule Of Outstanding Derivative Instruments	'
	Notional Amount								Fair Value at Significant Other Observable Inputs (Level 2)
	As of		As of		Type of Derivative	Strike Rate	Effective Date	Expiration Date	As of	As of
	31-Mar-14		31-Dec-13						31-Mar-14	31-Dec-13
	Currently-paying contracts
	$    410,905	-1	$    410,905	-1	Swap	0.717	Various	Various	$            (234)	$              (76)
	150,696	-2	150,040	-2	Swap	0.925	Jul. 17, 2012	Apr. 18, 2017	474	131
	561,601		560,945						240	55
	Forward-starting contracts
	150,000	-3	-		Forward-starting Swap	2.091	Jul. 15, 2014	Jul. 15, 2019	-681	-
	Total
	$    711,601		$    560,945						$            (441)	$              55
		-1		Represents the U.S. dollar tranche of the unsecured term loan.
		-2		Represents a portion of the Singapore dollar tranche of the unsecured term loan. Translation to U.S. dollars is based on exchange rate of $0.80 to 1.00 SGD as of March 31, 2014 and $0.79 to 1.00 SGD as of December 31, 2013.
		-3		In January 2014, we entered into a new forward-starting swap agreement with a notional amount of $150.0 million requiring fixed rate interest payments of 2.091% for a five-year period that commences in July 2014.

Fair_Value_Of_Instruments_Tabl

Fair Value Of Instruments (Tables)	3 Months Ended
	Mar. 31, 2014
Estimated Fair Value And Carrying Amounts	'
			As of March 31, 2014		As of December 31, 2013
		Categorization under the fair value hierarchy	Estimated Fair Value	Carrying Value	Estimated Fair Value	Carrying Value
	Global revolving credit facility (1)	Level 2	$                  790,500	$          790,500	$                  724,668	$          724,668
	Unsecured term loan (2)	Level 2	1,026,891	1,026,891	1,020,984	1,020,984
	Unsecured senior notes (3)(4)	Level 2	2,422,322	2,368,848	2,379,999	2,364,232
	Exchangeable senior debentures (3)	Level 2	363,846	266,400	336,847	266,400
	Mortgage loans (3)	Level 2	589,378	554,742	622,580	585,608
			$               5,192,937	$       5,007,381	$               5,085,078	$       4,961,892
		-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 $14,632 and $15,047 in the aggregate as of March 31, 2014 and December 31, 2013, respectively.
Digital Realty Trust, L.P. [Member]	'
Estimated Fair Value And Carrying Amounts	'
			As of March 31, 2014		As of December 31, 2013
		Categorization under the fair value hierarchy	Estimated Fair Value	Carrying Value	Estimated Fair Value	Carrying Value
	Global revolving credit facility (1)	Level 2	$                  790,500	$          790,500	$                  724,668	$          724,668
	Unsecured term loan (2)	Level 2	1,026,891	1,026,891	1,020,984	1,020,984
	Unsecured senior notes (3)(4)	Level 2	2,422,322	2,368,848	2,379,999	2,364,232
	Exchangeable senior debentures (3)	Level 2	363,846	266,400	336,847	266,400
	Mortgage loans (3)	Level 2	589,378	554,742	622,580	585,608
			$               5,192,937	$       5,007,381	$               5,085,078	$       4,961,892
		-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 $14,632 and $15,047 in the aggregate as of March 31, 2014 and December 31, 2013, respectively.

Subsequent_Events_Tables

Subsequent Events (Tables)	3 Months Ended
	Mar. 31, 2014
Schedule Of Dividends Declared And Distributions Per Unit	'
	Share / Unit Class	Series E	Series F	Series G	Series H		Common stock and common unit
		Preferred Stock and Unit	Preferred Stock and Unit	Preferred Stock and Unit	Preferred Stock and Unit
	Dividend and distribution amount	$	$	$	$	-1	$
		0.437500	0.414063	0.367188	0.486550		0.830000
	Dividend and distribution payable date	30-Jun-14	30-Jun-14	30-Jun-14	30-Jun-14		30-Jun-14
	Dividend and distribution payable to holders of record on	13-Jun-14	13-Jun-14	13-Jun-14	13-Jun-14		13-Jun-14
	Annual equivalent rate of dividend and distribution	$	$	$	$		$
		1.750	1.656	1.469	1.844		3.320
	(1)  Represents a pro rata dividend from and including the original issue date to and including June 30, 2014.
Digital Realty Trust, L.P. [Member]	'
Schedule Of Dividends Declared And Distributions Per Unit	'
	Share / Unit Class	Series E	Series F	Series G	Series H		Common stock and common unit
		Preferred Stock and Unit	Preferred Stock and Unit	Preferred Stock and Unit	Preferred Stock and Unit
	Dividend and distribution amount	$	$	$	$	-1	$
		0.437500	0.414063	0.367188	0.486550		0.830000
	Dividend and distribution payable date	30-Jun-14	30-Jun-14	30-Jun-14	30-Jun-14		30-Jun-14
	Dividend and distribution payable to holders of record on	13-Jun-14	13-Jun-14	13-Jun-14	13-Jun-14		13-Jun-14
	Annual equivalent rate of dividend and distribution	$	$	$	$		$
		1.750	1.656	1.469	1.844		3.320
	(1)  Represents a pro rata dividend from and including the original issue date to and including June 30, 2014.

Organization_And_Description_O1

Organization And Description Of Business (Narrative) (Details)	Mar. 31, 2014
	property
Organization and Description of Business [Line Items]	'
Number of properties owned	131
Common Interest [Member]	'
Organization and Description of Business [Line Items]	'
Ownership percentage in the Operating Partnership	97.60%
Preferred Interest [Member]	'
Organization and Description of Business [Line Items]	'
Ownership percentage in the Operating Partnership	100.00%
Joint Ventures [Member]	'
Organization and Description of Business [Line Items]	'
Number of properties held as investments in unconsolidated joint ventures	13
North America [Member]	'
Organization and Description of Business [Line Items]	'
Number of properties owned	104
Europe [Member]	'
Organization and Description of Business [Line Items]	'
Number of properties owned	22
Australia [Member]	'
Organization and Description of Business [Line Items]	'
Number of properties owned	3
Asia [Member]	'
Organization and Description of Business [Line Items]	'
Number of properties owned	2

Summary_Of_Significant_Account2

Summary Of Significant Accounting Policies (Narrative) (Details) (USD $)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
Summary Of Significant Accounting Policies [Line Items]	'	'	'
Period in which short-term investment become cash equivalents	'90 days	'	'
Interest capitalized	$5,300,000	$5,300,000	'
Compensation costs, leasing and construction activities	12,400,000	10,100,000	'
Cash flows from capitalized leasing costs	9,600,000	10,800,000	'
Number of reportable segments	1	'	'
Total operating revenues	390,590,000	358,370,000	'
Reclassification from rental property operating and maintenance expense to change in fair value of contingent consideration	'	1,300,000	'
United States [Member]	'	'	'
Summary Of Significant Accounting Policies [Line Items]	'	'	'
Total operating revenues	295,200,000	274,000,000	'
Long-lived assets	5,700,000,000	'	5,600,000,000
Outside The United States [Member]	'	'	'
Summary Of Significant Accounting Policies [Line Items]	'	'	'
Total operating revenues	95,400,000	84,400,000	'
Long-lived assets	2,700,000,000	'	2,700,000,000
United Kingdom [Member]	'	'	'
Summary Of Significant Accounting Policies [Line Items]	'	'	'
Total operating revenues	54,900,000	47,300,000	'
Long-lived assets	$1,700,000,000	'	$1,800,000,000
Sales [Member]	'	'	'
Summary Of Significant Accounting Policies [Line Items]	'	'	'
Concentration risk	14.10%	13.20%	'

Investments_In_Real_Estate_Nar

Investments In Real Estate (Narrative) (Details) (Subsequent Event [Member], 6 Braham Street [Member])	0 Months Ended
In Millions, unless otherwise specified	Apr. 07, 2014	Apr. 07, 2014
	USD ($)	GBP (£)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]	'	'
Consideration received on sale of property	$41.50	£ 25
Sale proceeds after costs and various tenant prepayments	37.5	22.6
Net gain on sale of discontinued operation	$15.80	£ 9.5

Investment_In_Unconsolidated_J2

Investment In Unconsolidated Joint Ventures (Narrative) (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2014	Mar. 31, 2014
			Prudential [Member]	636 Pierce Street [Member]
Schedule of Equity Method Investments [Line Items]	'	'	'	'
Gross Value	$40,400,000	'	$164,800,000	'
Property subject to debt	'	'	'	26,100,000
Proceeds received from contribution of property	'	'	'	11,400,000
Share of net assets less book value percentage	'	'	'	80.00%
Investment in unconsolidated joint ventures	81,411,000	70,504,000	'	14,300,000
Principal outstanding	'	'	'	23,000,000
Net proceeds from joint venture	'	'	'	17,500,000
Gain on contribution of property	'	'	'	$1,900,000

Investment_In_Unconsolidated_J3

Investment In Unconsolidated Joint Ventures (Summary Of Financial Information For Joint Ventures) (Details) (USD $)	3 Months Ended		12 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
Schedule of Equity Method Investments [Line Items]	'	'	'
Net investment in properties	$625,075	'	$584,837
Total assets	728,716	'	676,015
Mortgage loans	360,581	'	337,953
Total liabilities	458,986	'	444,062
Equity (deficit)	269,730	'	231,953
Investment in unconsolidated joint ventures	81,411	'	70,504
Revenues	21,919	11,099	'
Property operating expense	-5,009	-2,687	'
Net operating income	16,910	8,412	'
Net income (loss)	5,894	4,931	'
Investment in and share of net income (loss)	$2,581	$2,335	'
2001 Sixth Avenue [Member]	'	'	'
Schedule of Equity Method Investments [Line Items]	'	'	'
Ownership percentage in joint ventures	50.00%	'	'
33 Chun Choi Street (Hong Kong) [Member]	'	'	'
Schedule of Equity Method Investments [Line Items]	'	'	'
Ownership percentage in joint ventures	20.00%	'	'

Acquired_Intangible_Assets_And2

Acquired Intangible Assets And Liabilities (Narrative) (Details) (USD $)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Finite-Lived Intangible Assets [Line Items]	'	'
Amortization of below market leases	$2,800,000	$3,000,000
Expected average remaining lives of acquired below market leases	'6 years 6 months	'
Amortization of intangible assets	19,478,000	18,338,000
Acquired Above-Market Lease Value [Member]	'	'
Finite-Lived Intangible Assets [Line Items]	'	'
Expected average remaining lives	'4 years 3 months 18 days	'
Acquired-In Place Lease Value [Member]	'	'
Finite-Lived Intangible Assets [Line Items]	'	'
Expected average remaining lives	'6 years 4 months 24 days	'
Amortization of intangible assets	$15,100,000	$14,900,000
Weighted average remaining contractual life for acquired leases excluding renewals or extensions	'5 years	'

Acquired_Intangible_Assets_And3

Acquired Intangible Assets And Liabilities (Summary Of Acquired Intangible Assets) (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Finite-Lived Intangible Assets [Line Items]	'	'
Net	$283,172	'
Below-market lease, gross amount	290,365	291,638
Below-market lease, accumulated amortization	-167,213	-161,369
Below-market lease, net	123,152	130,269
Acquired-In Place Lease Value [Member]	'	'
Finite-Lived Intangible Assets [Line Items]	'	'
Gross amount	721,961	725,458
Accumulated amortization	-438,789	-423,549
Net	283,172	301,909
Acquired Above-Market Lease Value [Member]	'	'
Finite-Lived Intangible Assets [Line Items]	'	'
Gross amount	133,064	132,750
Accumulated amortization	-83,543	-80,486
Net	$49,521	$52,264

Acquired_Intangible_Assets_And4

Acquired Intangible Assets And Liabilities (Schedule Of Estimated Annual Amortization Of Below Market Leases) (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Finite-Lived Intangible Assets [Line Items]	'	'
Below-market lease, net	$123,152	$130,269
Below-Market Leases, Net of Above-Market Leases [Member]	'	'
Finite-Lived Intangible Assets [Line Items]	'	'
Below-market leases, Remainder of 2014	7,171	'
Below-market leases, 2015	8,862	'
Below-market leases, 2016	7,540	'
Below-market leases, 2017	6,038	'
Below-market leases, 2018	4,419	'
Below-market leases, Thereafter	39,601	'
Below-market lease, net	$73,631	'

Acquired_Intangible_Assets_And5

Acquired Intangible Assets And Liabilities (Schedule Of Estimated Annual Amortization Of Acquired In Place Leases) (Details) (USD $)	Mar. 31, 2014
In Thousands, unless otherwise specified
Acquired Intangible Assets And Liabilities [Abstract]	'
Remainder of 2014	$39,761
2015	44,295
2016	41,180
2017	28,363
2018	25,997
Thereafter	103,576
Net	$283,172

Debt_Of_The_Company_Details

Debt Of The Company (Details)	3 Months Ended
	Mar. 31, 2014
Exchangeable Senior Debentures [Member] | 5.50% Exchangeable Senior Debentures Due 2029 [Member]	'
Debt Instrument [Line Items]	'
Interest rate	5.50%
Maturity date	'2029
Senior Notes [Member] | 4.50% Notes Due 2015 [Member]	'
Debt Instrument [Line Items]	'
Interest rate	4.50%
Maturity date	'2015
Senior Notes [Member] | 5.875% Notes Due 2020 [Member]	'
Debt Instrument [Line Items]	'
Interest rate	5.88%
Maturity date	'2020
Senior Notes [Member] | 5.25% Notes Due 2021 [Member]	'
Debt Instrument [Line Items]	'
Interest rate	5.25%
Maturity date	'2021
Senior Notes [Member] | 3.625% Notes Due 2022 [Member]	'
Debt Instrument [Line Items]	'
Interest rate	3.63%
Maturity date	'2022
Senior Notes [Member] | 4.25% Notes Due 2025 [Member]	'
Debt Instrument [Line Items]	'
Interest rate	4.25%
Maturity date	'2025

Debt_Of_The_Operating_Partners2

Debt Of The Operating Partnership (Global Revolving Credit Facility) (Narrative) (Details) (Global Revolving Credit Facility [Member], Digital Realty Trust, L.P. [Member], USD $)	3 Months Ended
	Mar. 31, 2014							Dec. 31, 2013		Aug. 15, 2013	Aug. 14, 2013
	item
Debt Instrument [Line Items]	'							'		'	'
Revolving credit facility borrowing capacity	'							'		$2,000,000,000	$1,800,000,000
Maturity date	3-Nov-17							'		'	'
Number of extension options	2							'		'	'
Revolving credit facility commitments extension	'6 months							'		'	'
Interest rate basis spread	1.10%							'		'	'
Basis rate for unused portion of the credit facility	0.20%							'		'	'
Weighted-average interest rate	1.61%							1.60%		'	'
Capitalized financing costs related to global revolving facilities	18,000,000							'		'	'
Principal outstanding	790,500,000						[1]	724,668,000	[1]	'	'
Letter of credit security amount	23,100,000							'		'	'
Base Rate [Member]	'							'		'	'
Debt Instrument [Line Items]	'							'		'	'
Interest rate basis spread	0.10%							'		'	'
Weighted-average interest rate	3.35%							'		'	'
Accordian Feature [Member]	'							'		'	'
Debt Instrument [Line Items]	'							'		'	'
Revolving credit facility borrowing capacity	'							'		2,550,000,000	'
USD [Member]	'							'		'	'
Debt Instrument [Line Items]	'							'		'	'
Weighted-average interest rate	1.25%							'		'	'
USD [Member] | Base Rate [Member]	'							'		'	'
Debt Instrument [Line Items]	'							'		'	'
Weighted-average interest rate	3.35%						[2]	3.35%	[2]	'	'
Principal outstanding	$5,000,000						[2]	$28,000,000	[2]	'	'
GBP [Member]	'							'		'	'
Debt Instrument [Line Items]	'							'		'	'
Weighted-average interest rate	1.60%							'		'	'
EUR [Member]	'							'		'	'
Debt Instrument [Line Items]	'							'		'	'
Weighted-average interest rate	1.33%							'		'	'
AUD [Member]	'							'		'	'
Debt Instrument [Line Items]	'							'		'	'
Weighted-average interest rate	3.73%							'		'	'
HKD [Member]	'							'		'	'
Debt Instrument [Line Items]	'							'		'	'
Weighted-average interest rate	1.31%							'		'	'
JPY [Member]	'							'		'	'
Debt Instrument [Line Items]	'							'		'	'
Weighted-average interest rate	1.20%							'		'	'
CAD [Member]	'							'		'	'
Debt Instrument [Line Items]	'							'		'	'
Weighted-average interest rate	2.32%							'		'	'
[1]		Balances as of March 31, 2014 and December 31, 2013 are as follows (balances, in thousands):
	Denomination of Draw			Balance as of March 31, 2014		Weighted-average interest rate		Balance as of December 31, 2013			Weighted-average interest rate
	U.S. dollar ($)			$397,000		1.25%		$466,000			1.27%
	British pound sterling (£)			126,631	(c)	1.60%		-			-
	Euro (€)			74,353	(c)	1.33%		67,212	(d)		1.33%
	Australian dollar (AUD)			73,185	(c)	3.73%		67,212	(d)		3.70%
	Hong Kong dollar (HKD)			66,677	(c)	1.31%		57,390	(d)		1.31%
	Japanese yen (JPY)			13,174	(c)	1.20%		12,858	(d)		1.21%
	Canadian dollar (CAD)			34,480	(c)	2.32%		14,873	(d)		2.32%
	Total			785,500	(c)	1.60%		696,668			1.53%
	Base Rate Borrowing (b)
	U.S. dollar ($)			$5,000		3.35%		$28,000			3.35%
	Total borrowings			$790,500		1.61%		$724,668			1.60%
		(a)	The interest rates for floating rate borrowings under the global revolving credit facility equal the applicable index plus a margin of 110 basis points, which is based on the credit rating of our long-term debt.
		(b)	The interest rates for base rate borrowings under the global revolving credit facility equal the U.S. Prime Rate plus a margin of 10 basis points, which is based on the credit rating of our long-term debt.
		(c)	Based on exchange rates of $1.67 to £1.00, $1.38 to €1.00, $0.93 to 1.00 AUD, $0.13 to 1.00 HKD, $0.01 to 1.00 JPY and $0.90 to 1.00 CAD, respectively, as of March 31, 2014.
		(d)	Based on exchange rates of $1.37 to €1.00, $0.89 to 1.00 AUD, $0.13 to 1.00 HKD, $0.01 to 1.00 JPY and $0.94 to 1.00 CAD, respectively, as of December 31, 2013.
[2]	The interest rates for base rate borrowings under the global revolving credit facility equal the U.S. Prime Rate plus a margin of 10 basis points, which is based on the credit rating of our long-term debt.

Debt_Of_The_Operating_Partners3

Debt Of The Operating Partnership (Unsecured Term Loan) (Narrative) (Details) (Unsecured Term Loan [Member], Digital Realty Trust, L.P. [Member], USD $)	3 Months Ended
	Mar. 31, 2014							Dec. 31, 2013		Aug. 15, 2013	Aug. 14, 2013
	item
Debt Instrument [Line Items]	'							'		'	'
Credit facility, maximum borrowing capacity	'							'		$1,000,000,000	$750,000,000
Maturity date	16-Apr-17							'		'	'
Number of extension options	2							'		'	'
Revolving credit facility commitments extension	'6 months							'		'	'
Basis spread on variable rate	1.20%							'		'	'
Balance/Principal Outstanding	1,026,891,000						[1]	1,020,984,000	[1]	'	'
Capitalized financing costs	8,400,000							'		'	'
Accordian Feature [Member]	'							'		'	'
Debt Instrument [Line Items]	'							'		'	'
Credit facility, maximum borrowing capacity	'							'		$1,100,000,000	'
[1]
		Balances as of March 31, 2014 and December 31, 2013 are as follows (balances, in thousands):
	Denomination of Draw		Balance as of March 31, 2014		Weighted-average interest rate		Balance as of December 31, 2013			Weighted-average interest rate
	U.S. dollar ($)		$410,905		1.36%	(b)	$410,905			1.37%	(d)
	Singapore dollar (SGD)		181,710	(a)	1.42%		180,918	(c)		1.40%	(d)
	British pound sterling (£)		201,485	(a)	1.72%		200,216	(c)		1.72%
	Euro (€)		137,001	(a)	1.43%		136,743	(c)		1.43%
	Australian dollar (AUD)		95,790	(a)	3.82%		92,202	(c)		3.78%
	Total		$1,026,891		1.68%	(b)	$1,020,984			1.67%	(d)
		(a)	Based on exchange rates of $0.80 to 1.00 SGD, $1.67 to £1.00, $1.38 to €1.00, $0.93 to 1.00 AUD, respectively, as of March 31, 2014.
		(b)	As of March 31, 2014, the weighted-average interest rate reflecting interest rate swaps was 1.92% (U.S. dollar), 2.00% (Singapore dollar) and 2.01% (Total). See Note 14 for further discussion on interest rate swaps.
		(c)	Based on exchange rates of $0.79 to 1.00 SGD, $1.66 to £1.00, $1.37 to €1.00, $0.89 to 1.00 AUD, respectively, as of December 31, 2013.
		(d)	As of December 31, 2013, the weighted-average interest rate reflecting interest rate swaps was 1.92% (U.S. dollar), 2.00% (Singapore dollar) and 2.00% (Total). See Note 14 for further discussion on interest rate swaps.

Debt_Of_The_Operating_Partners4

Debt Of The Operating Partnership (5.50% Exchangeable Senior Notes Due 2029) (Narrative) (Details) (5.50% Exchangeable Senior Debentures Due 2029 [Member], Digital Realty Trust, L.P. [Member], USD $)	3 Months Ended
	Mar. 31, 2014	Apr. 20, 2009
5.50% Exchangeable Senior Debentures Due 2029 [Member] | Digital Realty Trust, L.P. [Member]	'	'
Debt Instrument [Line Items]	'	'
Issuance date	20-Apr-09	'
Senior face amount	'	$266,400,000
Maturity date	15-Apr-29	'
Interest rate	'	5.50%
Debt issuance cost	7,800,000	'
Amortization period	'5 years	'
Exchangeable debenture exchange rate, shares	0.0232558	'
Reference dividend rate, per share	$0.33	'
Exchangeable debenture exchange rate, shares, adjusted	0.025549	'
Issuance of restricted shares in exchange for principal amount	6,734,938	'
Amount of principal exchanged for shares	261,200,000	'
Amount of principal redeemed when holders did not exercise their option	$5,200,000	'
Percentage of principal amount redeemed	100.00%	'

Debt_Of_The_Operating_Partners5

Debt Of The Operating Partnership (Summary Of Outstanding Indebtedness Of The Operating Partnership - Global Revolving Credit Facility) (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014								Dec. 31, 2013
	item
Global Revolving Credit Facility [Member] | Digital Realty Trust, L.P. [Member]	'								'
Debt Instrument [Line Items]	'								'
Maturity Date	3-Nov-17								'
Revolving credit facilities interest rates	'Various							[1]	'
Balance/Principal Outstanding	$790,500							[2]	$724,668	[2]
Basis rate for unused portion of the credit facility	0.20%								'
Number of extension options	2								'
Revolving credit facility commitments extension	'6 months								'
Weighted-average interest rate	1.61%								1.60%
Basis spread on variable rate	1.10%								'
Global Revolving Credit Facility [Member] | Digital Realty Trust, L.P. [Member] | Floating Rate [Member]	'								'
Debt Instrument [Line Items]	'								'
Balance/Principal Outstanding	785,500							[3]	696,668	[3]
Weighted-average interest rate	1.60%							[3]	1.53%	[3]
Basis spread on variable rate	1.10%								'
Global Revolving Credit Facility [Member] | Digital Realty Trust, L.P. [Member] | Base Rate [Member]	'								'
Debt Instrument [Line Items]	'								'
Weighted-average interest rate	3.35%								'
Basis spread on variable rate	0.10%								'
USD [Member] | Global Revolving Credit Facility [Member] | Digital Realty Trust, L.P. [Member]	'								'
Debt Instrument [Line Items]	'								'
Weighted-average interest rate	1.25%								'
USD [Member] | Global Revolving Credit Facility [Member] | Digital Realty Trust, L.P. [Member] | Floating Rate [Member]	'								'
Debt Instrument [Line Items]	'								'
Balance/Principal Outstanding	397,000							[3]	466,000	[3]
Weighted-average interest rate	1.25%							[3]	1.27%	[3]
USD [Member] | Global Revolving Credit Facility [Member] | Digital Realty Trust, L.P. [Member] | Base Rate [Member]	'								'
Debt Instrument [Line Items]	'								'
Balance/Principal Outstanding	5,000							[4]	28,000	[4]
Weighted-average interest rate	3.35%							[4]	3.35%	[4]
GBP [Member] | Digital Realty Trust, L.P. [Member]	'								'
Debt Instrument [Line Items]	'								'
Exchange rate	1.67								1.66
GBP [Member] | Global Revolving Credit Facility [Member] | Digital Realty Trust, L.P. [Member]	'								'
Debt Instrument [Line Items]	'								'
Weighted-average interest rate	1.60%								'
GBP [Member] | Global Revolving Credit Facility [Member] | Digital Realty Trust, L.P. [Member] | Floating Rate [Member]	'								'
Debt Instrument [Line Items]	'								'
Balance/Principal Outstanding	126,631							[3],[5]	'
Weighted-average interest rate	1.60%							[3]	'
EUR [Member] | Digital Realty Trust, L.P. [Member]	'								'
Debt Instrument [Line Items]	'								'
Exchange rate	1.38								1.37
EUR [Member] | Global Revolving Credit Facility [Member] | Digital Realty Trust, L.P. [Member]	'								'
Debt Instrument [Line Items]	'								'
Weighted-average interest rate	1.33%								'
EUR [Member] | Global Revolving Credit Facility [Member] | Digital Realty Trust, L.P. [Member] | Floating Rate [Member]	'								'
Debt Instrument [Line Items]	'								'
Balance/Principal Outstanding	74,353							[3],[5]	78,335	[3],[6]
Weighted-average interest rate	1.33%							[3]	1.33%	[3]
SGD [Member]	'								'
Debt Instrument [Line Items]	'								'
Exchange rate	0.8								0.79
SGD [Member] | Digital Realty Trust, L.P. [Member]	'								'
Debt Instrument [Line Items]	'								'
Exchange rate	0.8								0.79
AUD [Member] | Digital Realty Trust, L.P. [Member]	'								'
Debt Instrument [Line Items]	'								'
Exchange rate	0.93								0.89
AUD [Member] | Global Revolving Credit Facility [Member] | Digital Realty Trust, L.P. [Member]	'								'
Debt Instrument [Line Items]	'								'
Weighted-average interest rate	3.73%								'
AUD [Member] | Global Revolving Credit Facility [Member] | Digital Realty Trust, L.P. [Member] | Floating Rate [Member]	'								'
Debt Instrument [Line Items]	'								'
Balance/Principal Outstanding	73,185							[3],[5]	67,212	[3],[6]
Weighted-average interest rate	3.73%							[3]	3.70%	[3]
HKD [Member] | Digital Realty Trust, L.P. [Member]	'								'
Debt Instrument [Line Items]	'								'
Exchange rate	0.13								0.13
HKD [Member] | Global Revolving Credit Facility [Member] | Digital Realty Trust, L.P. [Member]	'								'
Debt Instrument [Line Items]	'								'
Weighted-average interest rate	1.31%								'
HKD [Member] | Global Revolving Credit Facility [Member] | Digital Realty Trust, L.P. [Member] | Floating Rate [Member]	'								'
Debt Instrument [Line Items]	'								'
Balance/Principal Outstanding	66,677							[3],[5]	57,390	[3],[6]
Weighted-average interest rate	1.31%							[3]	1.31%	[3]
JPY [Member] | Digital Realty Trust, L.P. [Member]	'								'
Debt Instrument [Line Items]	'								'
Exchange rate	0.01								0.01
JPY [Member] | Global Revolving Credit Facility [Member] | Digital Realty Trust, L.P. [Member]	'								'
Debt Instrument [Line Items]	'								'
Weighted-average interest rate	1.20%								'
JPY [Member] | Global Revolving Credit Facility [Member] | Digital Realty Trust, L.P. [Member] | Floating Rate [Member]	'								'
Debt Instrument [Line Items]	'								'
Balance/Principal Outstanding	13,174							[3],[5]	12,858	[3],[6]
Weighted-average interest rate	1.20%							[3]	1.21%	[3]
CAD [Member] | Digital Realty Trust, L.P. [Member]	'								'
Debt Instrument [Line Items]	'								'
Exchange rate	0.9								0.94
CAD [Member] | Global Revolving Credit Facility [Member] | Digital Realty Trust, L.P. [Member]	'								'
Debt Instrument [Line Items]	'								'
Weighted-average interest rate	2.32%								'
CAD [Member] | Global Revolving Credit Facility [Member] | Digital Realty Trust, L.P. [Member] | Floating Rate [Member]	'								'
Debt Instrument [Line Items]	'								'
Balance/Principal Outstanding	$34,480							[3],[5]	$14,873	[3],[6]
Weighted-average interest rate	2.32%							[3]	2.32%	[3]
[1]	The interest rate for borrowings under the global revolving credit facility equals the applicable index plus a margin of 110 basis points, which is based on the credit rating of our long-term debt. An annual facility fee of 20 basis points, which is based on the credit rating of our long-term debt, is due and payable quarterly on the total commitment amount of the facility. Two six-month extensions are available, which we may exercise if certain conditions are met.
[2]		Balances as of March 31, 2014 and December 31, 2013 are as follows (balances, in thousands):
	Denomination of Draw			Balance as of March 31, 2014		Weighted-average interest rate	Balance as of December 31, 2013			Weighted-average interest rate
	U.S. dollar ($)			$397,000		1.25%	$466,000			1.27%
	British pound sterling (£)			126,631	(c)	1.60%	-			-
	Euro (€)			74,353	(c)	1.33%	67,212	(d)		1.33%
	Australian dollar (AUD)			73,185	(c)	3.73%	67,212	(d)		3.70%
	Hong Kong dollar (HKD)			66,677	(c)	1.31%	57,390	(d)		1.31%
	Japanese yen (JPY)			13,174	(c)	1.20%	12,858	(d)		1.21%
	Canadian dollar (CAD)			34,480	(c)	2.32%	14,873	(d)		2.32%
	Total			785,500	(c)	1.60%	696,668			1.53%
	Base Rate Borrowing (b)
	U.S. dollar ($)			$5,000		3.35%	$28,000			3.35%
	Total borrowings			$790,500		1.61%	$724,668			1.60%
		(a)	The interest rates for floating rate borrowings under the global revolving credit facility equal the applicable index plus a margin of 110 basis points, which is based on the credit rating of our long-term debt.
		(b)	The interest rates for base rate borrowings under the global revolving credit facility equal the U.S. Prime Rate plus a margin of 10 basis points, which is based on the credit rating of our long-term debt.
		(c)	Based on exchange rates of $1.67 to £1.00, $1.38 to €1.00, $0.93 to 1.00 AUD, $0.13 to 1.00 HKD, $0.01 to 1.00 JPY and $0.90 to 1.00 CAD, respectively, as of March 31, 2014.
		(d)	Based on exchange rates of $1.37 to €1.00, $0.89 to 1.00 AUD, $0.13 to 1.00 HKD, $0.01 to 1.00 JPY and $0.94 to 1.00 CAD, respectively, as of December 31, 2013.
[3]	The interest rates for floating rate borrowings under the global revolving credit facility equal the applicable index plus a margin of 110 basis points, which is based on the credit rating of our long-term debt.
[4]	The interest rates for base rate borrowings under the global revolving credit facility equal the U.S. Prime Rate plus a margin of 10 basis points, which is based on the credit rating of our long-term debt.
[5]	Based on exchange rates of $1.67 to £1.00, $1.38 to €1.00, $0.93 to 1.00 AUD, $0.13 to 1.00 HKD, $0.01 to 1.00 JPY and $0.90 to 1.00 CAD, respectively, as of MarchB 31, 2014.
[6]	Based on exchange rates of $1.37 to €1.00, $0.89 to 1.00 AUD, $0.13 to 1.00 HKD, $0.01 to 1.00 JPY and $0.94 to 1.00 CAD, respectively, as of DecemberB 31, 2013.

Debt_Of_The_Operating_Partners6

Debt Of The Operating Partnership (Summary Of Outstanding Indebtedness Of The Operating Partnership - Unsecured Term Loan) (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014									Dec. 31, 2013
	item
SGD [Member]	'									'
Debt Instrument [Line Items]	'									'
Exchange rate	0.8									0.79
Digital Realty Trust, L.P. [Member] | SGD [Member]	'									'
Debt Instrument [Line Items]	'									'
Exchange rate	0.8									0.79
Digital Realty Trust, L.P. [Member] | GBP [Member]	'									'
Debt Instrument [Line Items]	'									'
Exchange rate	1.67									1.66
Digital Realty Trust, L.P. [Member] | EUR [Member]	'									'
Debt Instrument [Line Items]	'									'
Exchange rate	1.38									1.37
Digital Realty Trust, L.P. [Member] | AUD [Member]	'									'
Debt Instrument [Line Items]	'									'
Exchange rate	0.93									0.89
Unsecured Term Loan [Member] | Digital Realty Trust, L.P. [Member]	'									'
Debt Instrument [Line Items]	'									'
Revolving credit facilities interest rates	'Various								[1],[2]	'
Maturity Date	16-Apr-17									'
Balance/Principal Outstanding	$1,026,891								[3]	$1,020,984	[3]
Basis spread on variable rate	1.20%									'
Number of extension options	2									'
Revolving credit facility commitments extension	'6 months									'
Weighted-average interest rate	1.68%								[4]	1.67%	[5]
Unsecured Term Loan [Member] | Digital Realty Trust, L.P. [Member] | Interest Rate Swap [Member]	'									'
Debt Instrument [Line Items]	'									'
Weighted-average interest rate	2.01%									2.00%
Unsecured Term Loan [Member] | Digital Realty Trust, L.P. [Member] | USD [Member]	'									'
Debt Instrument [Line Items]	'									'
Balance/Principal Outstanding	410,905									410,905
Weighted-average interest rate	1.36%								[4]	1.37%	[5]
Unsecured Term Loan [Member] | Digital Realty Trust, L.P. [Member] | USD [Member] | Interest Rate Swap [Member]	'									'
Debt Instrument [Line Items]	'									'
Weighted-average interest rate	1.92%									1.92%
Unsecured Term Loan [Member] | Digital Realty Trust, L.P. [Member] | SGD [Member]	'									'
Debt Instrument [Line Items]	'									'
Balance/Principal Outstanding	181,710								[6]	180,918	[7]
Weighted-average interest rate	1.42%								[4]	1.40%	[5]
Unsecured Term Loan [Member] | Digital Realty Trust, L.P. [Member] | SGD [Member] | Interest Rate Swap [Member]	'									'
Debt Instrument [Line Items]	'									'
Weighted-average interest rate	2.00%									2.00%
Unsecured Term Loan [Member] | Digital Realty Trust, L.P. [Member] | GBP [Member]	'									'
Debt Instrument [Line Items]	'									'
Balance/Principal Outstanding	201,485								[6]	200,216	[7]
Weighted-average interest rate	1.72%									1.72%
Unsecured Term Loan [Member] | Digital Realty Trust, L.P. [Member] | EUR [Member]	'									'
Debt Instrument [Line Items]	'									'
Balance/Principal Outstanding	137,001								[6]	136,743	[7]
Weighted-average interest rate	1.43%									1.43%
Unsecured Term Loan [Member] | Digital Realty Trust, L.P. [Member] | AUD [Member]	'									'
Debt Instrument [Line Items]	'									'
Balance/Principal Outstanding	$95,790								[6]	$92,202	[7]
Weighted-average interest rate	3.82%									3.78%
[1]	Interest rates are based on our senior unsecured debt ratings and are 120 basis points over the applicable index for floating rate advances. Two six-month extensions are available, which we may exercise if certain conditions are met.
[2]	We have entered into interest rate swap agreements as a cash flow hedge for interest generated by the U.S. dollar and Singapore dollar tranches of the unsecured term loan. See note 14 for further information.
[3]
		Balances as of March 31, 2014 and December 31, 2013 are as follows (balances, in thousands):
	Denomination of Draw		Balance as of March 31, 2014		Weighted-average interest rate		Balance as of December 31, 2013			Weighted-average interest rate
	U.S. dollar ($)		$410,905		1.36%	(b)	$410,905			1.37%	(d)
	Singapore dollar (SGD)		181,710	(a)	1.42%		180,918	(c)		1.40%	(d)
	British pound sterling (£)		201,485	(a)	1.72%		200,216	(c)		1.72%
	Euro (€)		137,001	(a)	1.43%		136,743	(c)		1.43%
	Australian dollar (AUD)		95,790	(a)	3.82%		92,202	(c)		3.78%
	Total		$1,026,891		1.68%	(b)	$1,020,984			1.67%	(d)
		(a)	Based on exchange rates of $0.80 to 1.00 SGD, $1.67 to £1.00, $1.38 to €1.00, $0.93 to 1.00 AUD, respectively, as of March 31, 2014.
		(b)	As of March 31, 2014, the weighted-average interest rate reflecting interest rate swaps was 1.92% (U.S. dollar), 2.00% (Singapore dollar) and 2.01% (Total). See Note 14 for further discussion on interest rate swaps.
		(c)	Based on exchange rates of $0.79 to 1.00 SGD, $1.66 to £1.00, $1.37 to €1.00, $0.89 to 1.00 AUD, respectively, as of December 31, 2013.
		(d)	As of December 31, 2013, the weighted-average interest rate reflecting interest rate swaps was 1.92% (U.S. dollar), 2.00% (Singapore dollar) and 2.00% (Total). See Note 14 for further discussion on interest rate swaps.
[4]	As of March 31, 2014, the weighted-average interest rate reflecting interest rate swaps was 1.92% (U.S. dollar), 2.00% (Singapore dollar) and 2.01% (Total). See Note 14 for further discussion on interest rate swaps.
[5]	As of December 31, 2013, the weighted-average interest rate reflecting interest rate swaps was 1.92% (U.S. dollar), 2.00% (Singapore dollar) and 2.00% (Total). See Note 14 for further discussion on interest rate swaps.The 2029 Debentures were redeemed in April 2014
[6]	Based on exchange rates of $0.80 to 1.00 SGD, $1.67 to £1.00, $1.38 to €1.00 and $0.93 to 1.00 AUD, respectively, as of March 31, 2014.
[7]	Based on exchange rates of $0.79 to 1.00 SGD, $1.66 to £1.00, $1.37 to €1.00 and $0.89 to 1.00 AUD, respectively, as of December 31, 2013.

Debt_Of_The_Operating_Partners7

Debt Of The Operating Partnership (Summary Of Outstanding Indebtedness Of The Operating Partnership - Unsecured Senior Notes) (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014		Dec. 31, 2013
Debt Instrument [Line Items]	'		'
Unsecured senior notes, net of discount	$2,368,848		$2,364,232
Digital Realty Trust, L.P. [Member]	'		'
Debt Instrument [Line Items]	'		'
Subtotal	5,021,324		'
Unamortized discounts	-14,632		'
Unsecured senior notes, net of discount	2,368,848		2,364,232
Prudential Shelf Facility [Member] | Digital Realty Trust, L.P. [Member]	'		'
Debt Instrument [Line Items]	'		'
Subtotal	142,000		142,000
Prudential Shelf Facility [Member] | Series C [Member] | Digital Realty Trust, L.P. [Member]	'		'
Debt Instrument [Line Items]	'		'
Interest Rate	9.68%		'
Maturity Date	6-Jan-16		'
Subtotal	25,000	[1]	25,000
Prudential Shelf Facility [Member] | Series D [Member] | Digital Realty Trust, L.P. [Member]	'		'
Debt Instrument [Line Items]	'		'
Interest Rate	4.57%		'
Maturity Date	20-Jan-15		'
Subtotal	50,000		50,000
Prudential Shelf Facility [Member] | Series E [Member] | Digital Realty Trust, L.P. [Member]	'		'
Debt Instrument [Line Items]	'		'
Interest Rate	5.73%		'
Maturity Date	20-Jan-17		'
Subtotal	50,000		50,000
Prudential Shelf Facility [Member] | Series F [Member] | Digital Realty Trust, L.P. [Member]	'		'
Debt Instrument [Line Items]	'		'
Interest Rate	4.50%		'
Maturity Date	3-Feb-15		'
Subtotal	17,000		17,000
Senior Notes [Member] | Digital Realty Trust, L.P. [Member]	'		'
Debt Instrument [Line Items]	'		'
Subtotal	2,241,480		'
Unamortized discounts	-14,632		-15,048
Unsecured senior notes, net of discount	2,226,848		2,222,232
Senior Notes [Member] | 4.50% Notes Due 2015 [Member]	'		'
Debt Instrument [Line Items]	'		'
Interest Rate	4.50%		'
Senior Notes [Member] | 4.50% Notes Due 2015 [Member] | Digital Realty Trust, L.P. [Member]	'		'
Debt Instrument [Line Items]	'		'
Interest Rate	4.50%		'
Maturity Date	15-Jul-15		'
Subtotal	375,000		375,000
Senior Notes [Member] | 5.875% Notes Due 2020 [Member]	'		'
Debt Instrument [Line Items]	'		'
Interest Rate	5.88%		'
Senior Notes [Member] | 5.875% Notes Due 2020 [Member] | Digital Realty Trust, L.P. [Member]	'		'
Debt Instrument [Line Items]	'		'
Interest Rate	5.88%		'
Maturity Date	1-Feb-20		'
Subtotal	500,000		500,000
Senior Notes [Member] | 5.25% Notes Due 2021 [Member]	'		'
Debt Instrument [Line Items]	'		'
Interest Rate	5.25%		'
Senior Notes [Member] | 5.25% Notes Due 2021 [Member] | Digital Realty Trust, L.P. [Member]	'		'
Debt Instrument [Line Items]	'		'
Interest Rate	5.25%		'
Maturity Date	15-Mar-21		'
Subtotal	400,000		400,000
Senior Notes [Member] | 3.625% Notes Due 2022 [Member]	'		'
Debt Instrument [Line Items]	'		'
Interest Rate	3.63%		'
Senior Notes [Member] | 3.625% Notes Due 2022 [Member] | Digital Realty Trust, L.P. [Member]	'		'
Debt Instrument [Line Items]	'		'
Interest Rate	3.63%		'
Maturity Date	1-Oct-22		'
Subtotal	300,000		300,000
Senior Notes [Member] | 4.25% Notes Due 2025 [Member]	'		'
Debt Instrument [Line Items]	'		'
Interest Rate	4.25%		'
Senior Notes [Member] | 4.25% Notes Due 2025 [Member] | Digital Realty Trust, L.P. [Member]	'		'
Debt Instrument [Line Items]	'		'
Interest Rate	4.25%		'
Maturity Date	17-Jan-25		'
Subtotal	$666,480	[2]	$662,280	[2]
[1]	On March 5, 2014, we contributed this property to our joint venture with an investment fund managed by Prudential Real Estate Investors which was formed in September 2013. Also on March 5, 2014, the joint venture assumed the debt and repaid in full the outstanding balance of $26.1 million on the mortgage loan.
[2]	Based on exchange rate of $1.67 to £1.00 as of MarchB 31, 2014 and $1.66 to £1.00 as of DecemberB 31, 2013.

Debt_Of_The_Operating_Partners8

Debt Of The Operating Partnership (Summary Of Outstanding Indebtedness Of The Operating Partnership - Exchangeable Senior Debentures) (Details) (USD $)

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Apr. 20, 2009

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Mar. 31, 2014

Dec. 31, 2013

In Thousands, unless otherwise specified

Digital Realty Trust, L.P. [Member]

Digital Realty Trust, L.P. [Member]

5.50% Exchangeable Senior Debentures Due 2029 [Member]

5.50% Exchangeable Senior Debentures Due 2029 [Member]

Exchangeable Senior Debentures [Member]

Exchangeable Senior Debentures [Member]

Exchangeable Senior Debentures [Member]

Exchangeable Senior Debentures [Member]

Exchangeable Senior Debentures [Member]

Digital Realty Trust, L.P. [Member]

Digital Realty Trust, L.P. [Member]

Digital Realty Trust, L.P. [Member]

Digital Realty Trust, L.P. [Member]

5.50% Exchangeable Senior Debentures Due 2029 [Member]

5.50% Exchangeable Senior Debentures Due 2029 [Member]

5.50% Exchangeable Senior Debentures Due 2029 [Member]

Digital Realty Trust, L.P. [Member]

Digital Realty Trust, L.P. [Member]

Debt Instrument [Line Items]

'

'

'

'

'

'

'

'

'

'

'

Interest Rate

'

'

'

'

'

5.50%

'

'

5.50%

5.50%

'

Maturity Date

'

'

'

'

15-Apr-29

'

'

'

'

15-Apr-29

[1]

'

Exchangeable senior debentures net of discount

$266,400

$266,400

$266,400

$266,400

'

'

$266,400

$266,400

'

$266,400

$266,400

[1]

The 2029 Debentures were redeemed in April 2014.

Debt_Of_The_Operating_Partners9

Debt Of The Operating Partnership (Summary Of Outstanding Indebtedness Of The Operating Partnership - Mortgage Loans) (Details)

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

USD ($)

USD ($)

Digital Realty Trust, L.P. [Member]

Digital Realty Trust, L.P. [Member]

Digital Realty Trust, L.P. [Member]

Digital Realty Trust, L.P. [Member]

Digital Realty Trust, L.P. [Member]

Digital Realty Trust, L.P. [Member]

Digital Realty Trust, L.P. [Member]

Digital Realty Trust, L.P. [Member]

Digital Realty Trust, L.P. [Member]

Digital Realty Trust, L.P. [Member]

Digital Realty Trust, L.P. [Member]

Digital Realty Trust, L.P. [Member]

Digital Realty Trust, L.P. [Member]

Digital Realty Trust, L.P. [Member]

Digital Realty Trust, L.P. [Member]

Digital Realty Trust, L.P. [Member]

Digital Realty Trust, L.P. [Member]

Digital Realty Trust, L.P. [Member]

Digital Realty Trust, L.P. [Member]

Digital Realty Trust, L.P. [Member]

Digital Realty Trust, L.P. [Member]

Digital Realty Trust, L.P. [Member]

Digital Realty Trust, L.P. [Member]

Digital Realty Trust, L.P. [Member]

Digital Realty Trust, L.P. [Member]

Digital Realty Trust, L.P. [Member]

Digital Realty Trust, L.P. [Member]

Digital Realty Trust, L.P. [Member]

Digital Realty Trust, L.P. [Member]

Digital Realty Trust, L.P. [Member]

Digital Realty Trust, L.P. [Member]

GBP [Member]

GBP [Member]

EUR [Member]

EUR [Member]

USD ($)

USD ($)

Mortgage Loans [Member]

Mortgage Loans [Member]

Mortgage Loans [Member]

Mortgage Loans [Member]

Mortgage Loans [Member]

Mortgage Loans [Member]

Mortgage Loans [Member]

Mortgage Loans [Member]

Mortgage Loans [Member]

Mortgage Loans [Member]

Mortgage Loans [Member]

Mortgage Loans [Member]

Mortgage Loans [Member]

Mortgage Loans [Member]

Mortgage Loans [Member]

Mortgage Loans [Member]

Mortgage Loans [Member]

Mortgage Loans [Member]

Mortgage Loans [Member]

Mortgage Loans [Member]

Mortgage Loans [Member]

Mortgage Loans [Member]

Mortgage Loans [Member]

Mortgage Loans [Member]

Mortgage Loans [Member]

Mortgage Loans [Member]

Mortgage Loans [Member]

Mortgage Loans [Member]

Mortgage Loans [Member]

Digital Realty Trust, L.P. [Member]

Digital Realty Trust, L.P. [Member]

Digital Realty Trust, L.P. [Member]

Digital Realty Trust, L.P. [Member]

USD ($)

USD ($)

Secured Term Debt [Member]

Secured Term Debt [Member]

200 Paul Avenue [Member]

200 Paul Avenue [Member]

2045 & 2055 LaFayette Street [Member]

2045 & 2055 LaFayette Street [Member]

34551 Ardenwood Boulevard 1-4 [Member]

34551 Ardenwood Boulevard 1-4 [Member]

1100 Space Park Drive [Member]

1100 Space Park Drive [Member]

600 West Seventh Street [Member]

600 West Seventh Street [Member]

150 South First Street [Member]

150 South First Street [Member]

2334 Lundy Place [Member]

2334 Lundy Place [Member]

Cressex 1 [Member]

Cressex 1 [Member]

636 Pierce Street [Member]

636 Pierce Street [Member]

8025 North Interstate 35 [Member]

8025 North Interstate 35 [Member]

Manchester Technopark [Member]

Manchester Technopark [Member]

Manchester Technopark [Member]

731 East Trade Street [Member]

731 East Trade Street [Member]

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

GBP (£)

USD ($)

USD ($)

USD ($)

item

property

property

Debt Instrument [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Interest rate at period end

'

'

'

'

'

'

5.65%

[1],[2]

'

5.74%

[1]

'

5.93%

[1],[3]

'

5.95%

[1]

'

5.89%

[1]

'

5.80%

'

6.30%

[1]

'

5.96%

[1]

'

5.68%

[4]

'

5.27%

'

4.09%

'

5.68%

[4]

5.68%

[4]

'

8.22%

'

'

'

'

'

Maturity Date

'

'

'

'

'

'

11-Nov-14

[1],[2]

'

8-Oct-15

[1]

'

6-Feb-17

[1]

'

11-Nov-16

[1]

'

11-Dec-16

[1]

'

15-Mar-16

'

6-Feb-17

[1]

'

11-Nov-16

[1]

'

16-Oct-14

[4]

'

15-Apr-23

'

6-Mar-16

'

16-Oct-14

[4]

16-Oct-14

[4]

'

1-Jul-20

'

'

'

'

'

Unamortized net premium

'

'

$689,000

'

$689,000

[5]

$2,359,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Mortgage loans, net of premiums

554,742,000

585,608,000

554,742,000

585,608,000

554,742,000

585,608,000

132,157,000

[1],[2]

132,966,000

[1],[2]

70,198,000

[1]

70,713,000

[1]

63,351,000

[1]

63,623,000

[1]

51,942,000

[1]

52,152,000

[1]

51,904,000

[1]

52,115,000

[1]

49,127,000

49,548,000

49,896,000

[1]

50,097,000

[1]

37,778,000

[1]

37,930,000

[1]

28,636,000

[4],[6]

28,583,000

[4],[6]

'

26,327,000

6,251,000

6,314,000

8,712,000

[4],[6]

'

8,695,000

[4],[6]

4,101,000

4,186,000

'

'

'

'

Mortgage loans on real estate, number

'

'

'

'

'

'

6

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Number of properties

'

'

'

'

'

'

6

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

2

2

'

'

'

'

'

'

'

Exchange rate

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1.67

1.66

1.38

1.37

Letter of credit security amount

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

7,800,000

'

'

'

'

'

'

'

Total indebtedness

'

'

$5,007,381,000

$4,961,892,000

$554,742,000

[5]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

[1]

The respective borrowerbs assets and credit are not available to satisfy the debts and other obligations of affiliates or any other person.

[2]

This amount represents six mortgage loans secured by our interests in 36 NE 2nd Street, 3300 East Birch Street, 100 & 200 Quannapowitt Parkway, 300 Boulevard East, 4849 Alpha Road, and 11830 Webb Chapel Road. Each of these loans is cross-collateralized by the six properties.

[3]

We have entered into interest rate swap agreements as a cash flow hedge for interest generated by the U.S. dollar and Singapore dollar tranches of the unsecured term loan. See note 14 for further information.

[4]

These loans are also secured by a £7.8B million letter of credit. These loans are cross-collateralized by the two properties.

[5]

Our mortgage loans are generally non-recourse to us, subject to carve-outs for specified actions by us or specified undisclosed environmental liabilities. As of March 31, 2014, we provided partial letter of credit support with respect to approximately $37.3 million of the outstanding mortgage indebtedness (based on exchange rates as of March 31, 2014).

[6]

Based on exchange rate of $1.67 to £1.00 as of MarchB 31, 2014 and $1.66 to £1.00 as of DecemberB 31, 2013.

Recovered_Sheet1

Debt Of The Operating Partnership (Schedule Of Debt Maturities And Principal Maturities) (Details) (Digital Realty Trust, L.P. [Member], USD $)

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Mar. 31, 2014

Dec. 31, 2013

Global Revolving Credit Facility [Member]

Unsecured Term Loan [Member]

Prudential Shelf Facility [Member]

Prudential Shelf Facility [Member]

Senior Notes [Member]

Senior Notes [Member]

Exchangeable Senior Debentures [Member]

Mortgage Loans [Member]

Mortgage Loans [Member]

item

item

Debt Instrument [Line Items]

'

'

'

'

'

'

'

'

'

'

'

Remainder of 2014

$442,217,000

'

'

'

'

'

'

'

$266,400,000

[1]

$175,817,000

[2]

'

2015

517,493,000

'

'

'

67,000,000

'

375,000,000

'

'

75,493,000

[2]

'

2016

216,979,000

'

'

'

25,000,000

'

'

'

'

191,979,000

[2]

'

2017

1,975,786,000

'

790,500,000

[3]

1,026,891,000

[3]

50,000,000

'

'

'

'

108,395,000

[2]

'

2018

593,000

'

'

'

'

'

'

'

'

593,000

[2]

'

Thereafter

1,868,256,000

'

'

'

'

'

1,866,480,000

'

'

1,776,000

[2]

'

Subtotal

5,021,324,000

'

790,500,000

[3]

1,026,891,000

[3]

142,000,000

142,000,000

2,241,480,000

'

266,400,000

[1]

554,053,000

[2]

'

Unamortized discounts

-14,632,000

'

'

'

'

'

-14,632,000

-15,048,000

'

'

'

Unamortized premium

689,000

'

'

'

'

'

'

'

'

689,000

[2]

2,359,000

Total Indebtedness

5,007,381,000

4,961,892,000

790,500,000

[3]

1,026,891,000

[3]

142,000,000

'

2,226,848,000

'

266,400,000

[1]

554,742,000

[2]

'

Number of extension options

'

'

2

2

'

'

'

'

'

'

'

Revolving credit facility commitments extension

'

'

'6 months

'6 months

'

'

'

'

'

'

'

First redemption date

'

'

'

'

'

'

'

'

1-Apr-14

'

'

Partial letter of credit

'

'

'

'

'

'

'

'

'

$37,300,000

'

[1]

The 2029 Debentures were redeemed in April 2014.

[2]

Our mortgage loans are generally non-recourse to us, subject to carve-outs for specified actions by us or specified undisclosed environmental liabilities. As of March 31, 2014, we provided partial letter of credit support with respect to approximately $37.3 million of the outstanding mortgage indebtedness (based on exchange rates as of March 31, 2014).

[3]

Subject to two six-month extension options exercisable by us. The bank group is obligated to grant the extension options provided we give proper notice, we make certain representations and warranties and no default exists under the global revolving credit facility and the unsecured term loan, as applicable.T

Income_Per_Share_Summary_Of_Ba

Income Per Share (Summary Of Basic And Diluted Earnings Per Share) (Details) (USD $)	3 Months Ended
In Thousands, except Share data, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Income Per Share [Abstract]	'	'
Net income available to common stockholders	$34,186	$42,657
Weighted average shares outstanding-basic	128,535,995	126,445,285
Stock options	51,909	70,877
Series H Cumulative Redeemable Preferred	388,340	'
Unvested incentive units	160,717	222,177
Weighted average shares/units outstanding-diluted	129,136,961	126,738,339
Basic	$0.27	$0.34
Diluted	$0.26	$0.34

Income_Per_Share_Schedule_Of_A

Income Per Share (Schedule Of Antidilutive Securities Excluded From Computation Of Earnings Per Share) (Details)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]	'	'
Potentially dilutive securities	23,606,308	18,102,941
Weighted Average Of Operating Partnership Common Units Not Owned By Us [Member]	'	'
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]	'	'
Potentially dilutive securities	2,606,669	2,442,756
Potentially Dilutive 2029 Debentures [Member]	'	'
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]	'	'
Potentially dilutive securities	6,806,254	6,590,470
Series D Cumulative Convertible Preferred Units [Member]	'	'
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]	'	'
Potentially dilutive securities	'	1,909,146
Series E Cumulative Convertible Preferred Stock/Units [Member]	'	'
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]	'	'
Potentially dilutive securities	5,674,269	4,381,703
Series F Cumulative Convertible Preferred Stock/Units [Member]	'	'
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]	'	'
Potentially dilutive securities	3,598,608	2,778,866
Series G Cumulative Convertible Preferred Stock/Units [Member]	'	'
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]	'	'
Potentially dilutive securities	4,920,508	'

Income_Per_Unit_Summary_Of_Bas

Income Per Unit (Summary Of Basic And Diluted Earnings Per Share) (Details) (USD $)	3 Months Ended
In Thousands, except Share data, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Net income available to common unitholders	$34,186	$42,657
Weighted average units outstanding-basic	128,535,995	126,445,285
Stock options	51,909	70,877
Series H Cumulative Redeemable Preferred	388,340	'
Unvested incentive units	160,717	222,177
Weighted average shares/units outstanding-diluted	129,136,961	126,738,339
Basic	$0.27	$0.34
Diluted	$0.26	$0.34
Digital Realty Trust, L.P. [Member]	'	'
Net income available to common unitholders	$34,879	$43,481
Weighted average units outstanding-basic	131,142,664	128,888,041
Stock options	51,909	70,877
Series H Cumulative Redeemable Preferred	388,340	'
Unvested incentive units	160,717	222,177
Weighted average shares/units outstanding-diluted	131,743,630	129,181,095
Basic	$0.27	$0.34
Diluted	$0.26	$0.34

Income_Per_Unit_Schedule_Of_An

Income Per Unit (Schedule Of Antidilutive Securities Excluded From Computation Of Earnings Per Share) (Details)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]	'	'
Potentially dilutive securities	23,606,308	18,102,941
Digital Realty Trust, L.P. [Member]	'	'
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]	'	'
Potentially dilutive securities	20,999,639	15,660,185
Potentially Dilutive 2029 Debentures [Member]	'	'
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]	'	'
Potentially dilutive securities	6,806,254	6,590,470
Potentially Dilutive 2029 Debentures [Member] | Digital Realty Trust, L.P. [Member]	'	'
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]	'	'
Potentially dilutive securities	6,806,254	6,590,470
Series D Cumulative Convertible Preferred Units [Member]	'	'
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]	'	'
Potentially dilutive securities	'	1,909,146
Series D Cumulative Convertible Preferred Units [Member] | Digital Realty Trust, L.P. [Member]	'	'
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]	'	'
Potentially dilutive securities	'	1,909,146
Series E Cumulative Convertible Preferred Stock/Units [Member]	'	'
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]	'	'
Potentially dilutive securities	5,674,269	4,381,703
Series E Cumulative Convertible Preferred Stock/Units [Member] | Digital Realty Trust, L.P. [Member]	'	'
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]	'	'
Potentially dilutive securities	5,674,269	4,381,703
Series F Cumulative Convertible Preferred Stock/Units [Member]	'	'
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]	'	'
Potentially dilutive securities	3,598,608	2,778,866
Series F Cumulative Convertible Preferred Stock/Units [Member] | Digital Realty Trust, L.P. [Member]	'	'
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]	'	'
Potentially dilutive securities	3,598,608	2,778,866
Series G Cumulative Convertible Preferred Stock/Units [Member]	'	'
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]	'	'
Potentially dilutive securities	4,920,508	'
Series G Cumulative Convertible Preferred Stock/Units [Member] | Digital Realty Trust, L.P. [Member]	'	'
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]	'	'
Potentially dilutive securities	4,920,508	'

Income_Taxes_Details

Income Taxes (Details) (USD $)	Mar. 31, 2014
In Millions, unless otherwise specified
Income Taxes [Abstract]	'
Net deferred tax liability	$148.40

Equity_And_Accumulated_Other_C2

Equity And Accumulated Other Comprehensive Income (Loss), Net (Equity Distribution Agreements Narrative) (Details) (2011 Equity Distribution Agreements [Member], USD $)	3 Months Ended
In Millions, except Per Share data, unless otherwise specified	Mar. 31, 2014	Jun. 29, 2011
2011 Equity Distribution Agreements [Member]	'	'
Equity and Accumulated Other Comprehensive Income (Loss) [Line Items]	'	'
Aggregate offering price of the distribution agreement maximum	'	$400
Net proceeds from sale of common stock	342.7	'
Issuance of common shares	5.7	'
Equity distribution agreements at an average price	$60.35	'
Payment of commissions to sales agents	3.5	'
Aggregate offering price remaining available for offer and sale	$53.80	'

Equity_And_Accumulated_Other_C3

Equity And Accumulated Other Comprehensive Income (Loss), Net (7.375% Series H Cumulative Redeemable Preferred Stock Narrative) (Details) (USD $)	Mar. 31, 2014	Apr. 07, 2014	Mar. 26, 2014	Mar. 31, 2014	Dec. 31, 2013	Apr. 29, 2014	Apr. 07, 2014	Apr. 07, 2014
In Millions, except Share data, unless otherwise specified		Subsequent Event [Member]	Series H Cumulative Convertible Preferred Stock/Units [Member]	Series H Cumulative Convertible Preferred Stock/Units [Member]	Series H Cumulative Convertible Preferred Stock/Units [Member]	Series H Cumulative Convertible Preferred Stock/Units [Member]	Series H Cumulative Convertible Preferred Stock/Units [Member]	Series H Cumulative Convertible Preferred Stock/Units [Member]
						Subsequent Event [Member]	Subsequent Event [Member]	Over-Allotment Option [Member]
								Subsequent Event [Member]
Equity and Accumulated Other Comprehensive Income (Loss) [Line Items]	'	'	'	'	'	'	'	'
Issuance date	'	'	'	26-Mar-14	'	'	'	'
Preferred stock, issued	'	2,000,000	'	12,000,000	0	'	14,600,000	600,000
Preferred stock, dividend rate	'	'	'	7.38%	7.38%	'	'	'
Gross proceeds from issuance of redeemable preferred stock	'	'	$289.90	$353.20	'	'	'	'
Preferred stock dividend per share amount	'	'	'	$1.84	'	$1.84	'	'
Preferred stock dividend declared per share	'	'	'	$0.49	'	'	'	'
Preferred stock, liquidation preference per share/unit	'	'	'	$25	$25	'	'	'
Preferred stock, redemption price per share	'	'	'	$25	'	'	'	'
Shares issued upon conversion	0.9632	'	'	'	'	'	'	'

Equity_And_Accumulated_Other_C4

Equity And Accumulated Other Comprehensive Income (Loss), Net (Noncontrolling Interests In Operating Partnership Narrative) (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Equity And Accumulated Other Comprehensive Income (Loss), Net [Abstract]	'	'
Redemption value of OP units	$149.20	$124.10

Equity_And_Accumulated_Other_C5

Equity And Accumulated Other Comprehensive Income (Loss), Net (Ownership Interest In The Operating Partnership) (Details)	Mar. 31, 2014	Dec. 31, 2013
Equity and Accumulated Other Comprehensive Income (Loss) [Line Items]	'	'
Partners' capital account units	128,606,462	128,455,350
Percentage of total	97.60%	97.70%
Common Units Held By Third Parties [Member]	'	'
Equity and Accumulated Other Comprehensive Income (Loss) [Line Items]	'	'
Common units held by third parties	1,491,814	1,491,814
Percentage of total	1.10%	1.20%
Incentive Units Held By Employees And Directors [Member]	'	'
Equity and Accumulated Other Comprehensive Income (Loss) [Line Items]	'	'
Incentive units held by employees and directors	1,633,797	1,475,207
Percentage of total	1.30%	1.10%
Noncontrolling Interests In Operating Partnership [Member]	'	'
Equity and Accumulated Other Comprehensive Income (Loss) [Line Items]	'	'
Partners' capital account units	131,732,073	131,422,371
Percentage of total	100.00%	100.00%

Equity_And_Accumulated_Other_C6

Equity And Accumulated Other Comprehensive Income (Loss), Net (Summary Of Activity For Noncontrolling Interests In The Operating Partnership) (Details)	3 Months Ended				3 Months Ended
	Mar. 31, 2014		Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2014
			Common Units [Member]	Common Units [Member]	Incentive Units [Member]
Equity and Accumulated Other Comprehensive Income (Loss) [Line Items]	'		'	'	'
Beginning balance	2,967,021		1,491,814	1,491,814	1,475,207
Conversion of incentive units held by employees and directors for shares of Digital Realty Trust, Inc. common stock	-4,438	[1]	'	'	-4,438	[1]
Cancellation of incentive units held by employees and directors	-18,773		'	'	-18,773
Grant of incentive units to employees and directors	181,801		'	'	181,801
Ending balance	3,125,611		1,491,814	1,491,814	1,633,797
[1]	This redemption was recorded as a reduction to noncontrolling interests in the Operating Partnership and an increase to common stock and additional paid in capital based on the book value per unit in the accompanying condensed consolidated balance sheet of Digital Realty Trust, Inc.

Equity_And_Accumulated_Other_C7

Equity And Accumulated Other Comprehensive Income (Loss), Net (Schedule Of Dividends) (Details) (USD $)

3 Months Ended

12 Months Ended

3 Months Ended

12 Months Ended

3 Months Ended

In Thousands, except Per Share data, unless otherwise specified

Mar. 31, 2014

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Dec. 31, 2011

Mar. 31, 2014

Installment 1 FY2014 [Member]

Series E Cumulative Convertible Preferred Stock/Units [Member]

Series E Cumulative Convertible Preferred Stock/Units [Member]

Series E Cumulative Convertible Preferred Stock/Units [Member]

Series F Cumulative Convertible Preferred Stock/Units [Member]

Series F Cumulative Convertible Preferred Stock/Units [Member]

Series G Cumulative Convertible Preferred Stock/Units [Member]

Series G Cumulative Convertible Preferred Stock/Units [Member]

Common Stock [Member]

Common Stock [Member]

Common Stock [Member]

Installment 1 FY2014 [Member]

Installment 1 FY2014 [Member]

Installment 1 FY2014 [Member]

Installment 1 FY2014 [Member]

Dividends Payable [Line Items]

'

'

'

'

'

'

'

'

'

'

'

Date dividend/distribution declared

11-Feb-14

'

'

'

'

'

'

'

'

'

'

Dividend/Distribution payable date

31-Mar-14

'

'

'

'

'

'

'

'

'

'

Dividends/Distributions, preferred stock/units

'

$5,031

[1]

'

$5,031

[1]

$3,023

[2]

$3,023

[2]

$3,672

[3]

$3,672

[3]

'

'

'

Dividends/Distributions, common stock/units

'

'

'

'

'

'

'

'

$106,743

[4]

'

$106,743

[4]

Preferred stock dividend per share amount

'

$1.75

$1.75

'

$1.66

'

$1.47

'

'

'

'

Common stock dividend per share amount

'

'

'

'

'

'

'

'

'

$3.32

'

[1]

$1.750 annual rate of dividend per share.

[2]

$1.656 annual rate of dividend per share.

[3]

$1.469 annual rate of dividend per share.

[4]

$3.320 annual rate of dividend per share.

Equity_And_Accumulated_Other_C8

Equity And Accumulated Other Comprehensive Income (Loss), Net (Schedule Of Accumulated Other Comprehensive Loss, Net) (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014
Accumulated Other Comprehensive Income (Loss) [Line Items]	'
Accumulated other comprehensive loss, net, Beginning balance	$10,691
Net current period change	2,427
Reclassification to interest expense from interest rate swaps	829
Accumulated other comprehensive loss, net, Ending balance	13,947
Foreign Currency Translation Adjustments [Member]	'
Accumulated Other Comprehensive Income (Loss) [Line Items]	'
Accumulated other comprehensive loss, net, Beginning balance	11,745
Net current period change	3,743
Accumulated other comprehensive loss, net, Ending balance	15,488
Cash Flow Hedge Adjustments [Member]	'
Accumulated Other Comprehensive Income (Loss) [Line Items]	'
Accumulated other comprehensive loss, net, Beginning balance	-1,054
Net current period change	-1,316
Reclassification to interest expense from interest rate swaps	829
Accumulated other comprehensive loss, net, Ending balance	($1,541)

Capital_And_Accumulated_Other_2

Capital And Accumulated Other Comprehensive Income (Loss) (7.375% Series H Cumulative Redeemable Preferred Units Narrative) (Details) (USD $)	3 Months Ended	12 Months Ended
	Mar. 31, 2014	Dec. 31, 2013
Capital and Accumulated Other Comprehensive Income (Loss) [Line Items]	'	'
Shares issued upon conversion	0.9632	'
Series H Cumulative Convertible Preferred Stock/Units [Member]	'	'
Capital and Accumulated Other Comprehensive Income (Loss) [Line Items]	'	'
Issuance date	26-Mar-14	'
Preferred stock, issued	12,000,000	0
Preferred stock, dividend rate	7.38%	7.38%
Preferred stock dividend per share amount	$1.84	'
Preferred stock, liquidation preference per share/unit	$25	$25
Preferred stock dividend declared per share	$0.49	'
Preferred stock, redemption price per share	$25	'
Digital Realty Trust, L.P. [Member] | Series H Cumulative Convertible Preferred Stock/Units [Member]	'	'
Capital and Accumulated Other Comprehensive Income (Loss) [Line Items]	'	'
Issuance date	26-Mar-14	'
Preferred stock, issued	14,600,000	'
Preferred stock, dividend rate	7.38%	7.38%
Preferred stock dividend per share amount	$1.84	'
Preferred stock, liquidation preference per share/unit	$25	$25
Preferred stock dividend declared per share	$0.49	'
Preferred stock, redemption price per share	$25	'

Capital_And_Accumulated_Other_3

Capital And Accumulated Other Comprehensive Income (Loss) (Partnership Units Narrative) (Details) (Digital Realty Trust, L.P. [Member], USD $)	Mar. 31, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Digital Realty Trust, L.P. [Member]	'	'
Capital and Accumulated Other Comprehensive Income (Loss) [Line Items]	'	'
Redemption value of common units	$149.20	$124.10

Capital_And_Accumulated_Other_4

Capital And Accumulated Other Comprehensive Income (Loss) (Schedule Of Distributions) (Details) (USD $)

3 Months Ended

12 Months Ended

3 Months Ended

12 Months Ended

3 Months Ended

In Thousands, except Per Share data, unless otherwise specified

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Dec. 31, 2011

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Series E Cumulative Convertible Preferred Stock/Units [Member]

Series E Cumulative Convertible Preferred Stock/Units [Member]

Series E Cumulative Convertible Preferred Stock/Units [Member]

Series F Cumulative Convertible Preferred Stock/Units [Member]

Series F Cumulative Convertible Preferred Stock/Units [Member]

Series G Cumulative Convertible Preferred Stock/Units [Member]

Series G Cumulative Convertible Preferred Stock/Units [Member]

Common Units [Member]

Common Units [Member]

Installment 1 FY2014 [Member]

Installment 1 FY2014 [Member]

Installment 1 FY2014 [Member]

Installment 1 FY2014 [Member]

Installment 1 FY2014 [Member]

Installment 1 FY2014 [Member]

Installment 1 FY2014 [Member]

Installment 1 FY2014 [Member]

Installment 1 FY2014 [Member]

Digital Realty Trust, L.P. [Member]

Digital Realty Trust, L.P. [Member]

Digital Realty Trust, L.P. [Member]

Digital Realty Trust, L.P. [Member]

Digital Realty Trust, L.P. [Member]

Digital Realty Trust, L.P. [Member]

Series E Cumulative Convertible Preferred Stock/Units [Member]

Series E Cumulative Convertible Preferred Stock/Units [Member]

Series F Cumulative Convertible Preferred Stock/Units [Member]

Series F Cumulative Convertible Preferred Stock/Units [Member]

Series G Cumulative Convertible Preferred Stock/Units [Member]

Series G Cumulative Convertible Preferred Stock/Units [Member]

Common Units [Member]

Digital Realty Trust, L.P. [Member]

Digital Realty Trust, L.P. [Member]

Digital Realty Trust, L.P. [Member]

Digital Realty Trust, L.P. [Member]

Dividends Payable [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Date dividend/distribution declared

'

'

'

'

'

'

'

'

'

11-Feb-14

11-Feb-14

'

'

'

'

'

'

'

Dividend/Distribution payable date

'

'

'

'

'

'

'

'

'

31-Mar-14

31-Mar-14

'

'

'

'

'

'

'

Dividends/Distributions, preferred stock/units

$5,031

[1]

'

$5,031

[2]

$3,023

[3]

$3,023

[4]

$3,672

[5]

$3,672

[6]

'

'

'

'

$5,031

[1]

$5,031

[2]

$3,023

[3]

$3,023

[4]

$3,672

[5]

$3,672

[6]

'

Dividends/Distributions, common stock/units

'

'

'

'

'

'

'

$109,378

[7]

'

'

'

'

'

'

'

'

'

$109,378

[7]

Preferred stock dividend per share amount

$1.75

$1.75

$1.75

$1.66

$1.66

$1.47

$1.47

'

'

'

'

'

'

'

'

'

'

'

Common stock dividend per share amount

'

'

'

'

'

'

'

'

$3.32

'

'

'

'

'

'

'

'

'

[1]

$1.750 annual rate of dividend per share.

[2]

$1.750 annual rate of distribution per unit.

[3]

$1.656 annual rate of dividend per share.

[4]

$1.656 annual rate of distribution per unit.

[5]

$1.469 annual rate of dividend per share.

[6]

$1.469 annual rate of distribution per unit.

[7]

$3.320 annual rate of distribution per unit.

Capital_And_Accumulated_Other_5

Capital And Accumulated Other Comprehensive Income (Loss) (Schedule Of Accumulated Other Comprehensive Income (Loss)) (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014
Accumulated Other Comprehensive Income (Loss) [Line Items]	'
Accumulated other comprehensive loss, net, Beginning balance	$10,691
Net current period change	2,427
Reclassification to interest expense from interest rate swaps	829
Accumulated other comprehensive loss, net, Ending balance	13,947
Digital Realty Trust, L.P. [Member]	'
Accumulated Other Comprehensive Income (Loss) [Line Items]	'
Accumulated other comprehensive loss, net, Beginning balance	8,457
Net current period change	2,476
Reclassification to interest expense from interest rate swaps	846
Accumulated other comprehensive loss, net, Ending balance	11,779
Foreign Currency Translation Adjustments [Member]	'
Accumulated Other Comprehensive Income (Loss) [Line Items]	'
Accumulated other comprehensive loss, net, Beginning balance	11,745
Net current period change	3,743
Accumulated other comprehensive loss, net, Ending balance	15,488
Foreign Currency Translation Adjustments [Member] | Digital Realty Trust, L.P. [Member]	'
Accumulated Other Comprehensive Income (Loss) [Line Items]	'
Accumulated other comprehensive loss, net, Beginning balance	10,235
Net current period change	3,819
Accumulated other comprehensive loss, net, Ending balance	14,054
Cash Flow Hedge Adjustments [Member]	'
Accumulated Other Comprehensive Income (Loss) [Line Items]	'
Accumulated other comprehensive loss, net, Beginning balance	-1,054
Net current period change	-1,316
Reclassification to interest expense from interest rate swaps	829
Accumulated other comprehensive loss, net, Ending balance	-1,541
Cash Flow Hedge Adjustments [Member] | Digital Realty Trust, L.P. [Member]	'
Accumulated Other Comprehensive Income (Loss) [Line Items]	'
Accumulated other comprehensive loss, net, Beginning balance	-1,778
Net current period change	-1,343
Reclassification to interest expense from interest rate swaps	846
Accumulated other comprehensive loss, net, Ending balance	($2,275)

Incentive_Plan_Narrative_Detai

Incentive Plan (Narrative) (Details) (USD $)	0 Months Ended
In Millions, except Share data, unless otherwise specified	2-May-07	Mar. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'
Maximum number of shares granted per employee	1,500,000	'
Maximum amount of cash paid per employee	$10	'
Number of shares remaining for issuance under the "Incentive Plan"	'	2,007,813
2004 Incentive Award Plan [Member]	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'
Shares authorized and reserved for issuance under the "Incentive Plan"	'	4,474,102
Amended And Restated 2004 Incentive Award Plan [Member]	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'
Shares authorized and reserved for issuance under the "Incentive Plan"	9,474,102	'
Increase in number of shares reserved for issuance	5,000,000	'

Incentive_Plan_LongTerm_Incent

Incentive Plan (Long-Term Incentive Units) (Narrative) (Details) (USD $)	3 Months Ended	12 Months Ended
In Millions, except Share data, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2011	Dec. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Long-term incentive units granted	181,801	'	'
Long-Term Incentive Units [Member]	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Award vesting period	'4 years	'	'
Share/unit compensation expense	$7.80	$2.20	'
Capitalized expense related to construction and leasing activities	0.5	0.4	'
Unearned compensation	$14.30	'	$12.90
Unearned compensation, period of recognition	'2 years 7 months 6 days	'	'
Service And Performance Condition [Member] | Long-Term Incentive Units [Member]	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Long-term incentive units granted	95,316	'	'
Number of shares satisfying the performance conditions	75,105	'	'

Incentive_Plan_Performance_Bas

Incentive Plan (Performance Based Awards Narrative) (Details) (2014 Performance Grant [Member], USD $)	3 Months Ended
In Millions, except Share data, unless otherwise specified	Mar. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Award vesting percentage	0.00%
Expected volatility rate	33.00%
Risk-free interest rate	0.67%
Fair value of awards	$17.10
Requisite service period of share-based award	'4 years
Unearned compensation	13.6
Recognized compensation expense	0.4
Capitalized expense related to construction and leasing activities	$0.20
Share-based Compensation Award, Tranche Four [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Award vesting percentage	50.00%
Share-based Compensation Award, Tranche Fifth [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Award vesting percentage	50.00%
Class D Units [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Number of awards to executive officers and other employees	645,484
Restricted Stock Units (RSUs) [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Number of awards to executive officers and other employees	247,158

Incentive_Plan_Restricted_Stoc

Incentive Plan (Restricted Stock) (Narrative) (Details) (Restricted Stock [Member], USD $)	3 Months Ended	12 Months Ended
In Millions, except Share data, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2011	Dec. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Restricted stock expense	$0.80	$0.70	'
Capitalized expense related to construction and leasing activities	0.8	0.6	'
Unearned compensation	$15.10	'	$8.70
Unearned compensation, period of recognition	'3 years	'	'
Service And Performance Condition [Member]	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Restricted shares granted	69,995	'	'
Number of shares satisfying the performance conditions	50,805	'	'
Minimum [Member]	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Award vesting period	'3 years	'	'
Maximum [Member]	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Award vesting period	'4 years	'	'

Incentive_Plan_Summary_Of_Long

Incentive Plan (Summary Of Long-Term Incentive Units) (Details) (Long-Term Incentive Units [Member], USD $)	3 Months Ended
	Mar. 31, 2014
Long-Term Incentive Units [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Unvested Shares, beginning of period, Shares	440,951
Unvested Shares, Granted, Shares	181,801
Unvested Shares, Vested, Shares	-289,564
Unvested Shares, Cancelled or expired, Shares	-18,773
Unvested Shares, end of period, Shares	314,415
Unvested Shares, beginning of period, Weighted-Average Grant Date Fair Value	$62.42
Unvested Shares, Granted, Weighted-Average Grant Date Fair Value	$52.15
Unvested Shares, Vested, Weighted-Average Grant Date Fair Value	$59.13
Unvested Shares, Cancelled or expired, Weighted-Average Grant Date Fair Value	$65.21
Unvested Shares, end of period, Weighted-Average Grant Date Fair Value	$59.34

Incentive_Plan_Performance_Bas1

Incentive Plan (Performance Based Awards) (Details) (2014 Performance Grant [Member])	3 Months Ended
	Mar. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Performance Vesting Percentage	0.00%
RMS Relative Performance	0.00%
Share-based Compensation Award, Tranche One [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Performance Vesting Percentage	25.00%
RMS Relative Performance	0.00%
Share-based Compensation Award, Tranche Two [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Performance Vesting Percentage	50.00%
RMS Relative Performance	3.25%
Share-based Compensation Award, Tranche Three [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Performance Vesting Percentage	100.00%
RMS Relative Performance	6.50%

Incentive_Plan_Summary_Of_Ince

Incentive Plan (Summary Of Incentive Award Plan's Stock Option) (Details) (USD $)	3 Months Ended
	Mar. 31, 2014
Incentive Plan [Abstract]	'
Options outstanding, beginning of period, Shares	123,690
Exercised, Shares	-917
Options outstanding, end of period, Shares	122,773
Exercisable, end of period, Shares	122,773
Options outstanding, beginning of period, Weighted average exercise price	$30.13
Exercised, Weighted average exercise price	$41.73
Options outstanding, end of period, Weighted average exercise price	$30.04
Exercisable, end of period, Weighted average exercise price	$30.04

Incentive_Plan_Summary_Of_Stoc

Incentive Plan (Summary Of Stock Options Outstanding And Exercisable) (Details) (USD $)	3 Months Ended
	Mar. 31, 2014	Dec. 31, 2013
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]	'	'
Number outstanding	122,773	123,690
Weighted average remaining contractual life (years), Outstanding	'2 years 1 month 24 days	'
Weighted average exercise price, Outstanding	$30.04	'
Aggregate intrinsic value, Outstanding	$2,828,506	'
$12.00-13.02 [Member]	'	'
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]	'	'
Exercise price, lower limit	$12	'
Exercise price, upper limit	$13.02	'
Number outstanding	34,870	'
Weighted average remaining contractual life (years), Outstanding	'6 months 29 days	'
Weighted average exercise price, Outstanding	$12	'
Aggregate intrinsic value, Outstanding	1,432,460	'
$20.37-28.09 [Member]	'	'
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]	'	'
Exercise price, lower limit	$20.37	'
Exercise price, upper limit	$28.09	'
Number outstanding	17,000	'
Weighted average remaining contractual life (years), Outstanding	'1 year 7 months 21 days	'
Weighted average exercise price, Outstanding	$21.28	'
Aggregate intrinsic value, Outstanding	540,630	'
$33.18-41.73 [Member]	'	'
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]	'	'
Exercise price, lower limit	$33.18	'
Exercise price, upper limit	$41.73	'
Number outstanding	70,903	'
Weighted average remaining contractual life (years), Outstanding	'3 years 18 days	'
Weighted average exercise price, Outstanding	$41.02	'
Aggregate intrinsic value, Outstanding	$855,416	'

Incentive_Plan_Summary_Of_Rest

Incentive Plan (Summary Of Restricted Stock Activity) (Details) (Restricted Stock [Member], USD $)	3 Months Ended
	Mar. 31, 2014
Restricted Stock [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Unvested Shares, beginning of period, Shares	255,081
Unvested Shares, Granted, Shares	158,780
Unvested Shares, Vested, Shares	-70,485
Unvested Shares, Cancelled or expired, Shares	-13,023
Unvested Shares, end of period, Shares	330,353
Unvested Shares, beginning of period, Weighted-Average Grant Date Fair Value	$63.35
Unvested Shares, Granted, Weighted-Average Grant Date Fair Value	$52.11
Unvested Shares, Vested, Weighted-Average Grant Date Fair Value	$60.50
Unvested Shares, Cancelled or expired, Weighted-Average Grant Date Fair Value	$65.21
Unvested Shares, end of period, Weighted-Average Grant Date Fair Value	$58.48

Derivative_Instruments_Details

Derivative Instruments (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014		Mar. 31, 2013	Dec. 31, 2013
Derivative [Line Items]	'		'	'
Interest Expense	$47,374		$48,078	'
Notional Amount	711,601		'	560,945
Fair Value at Significant Other Observable Inputs (Level 2)	-441		'	55
Forward Contracts [Member]	'		'	'
Derivative [Line Items]	'		'	'
Notional Amount	150,000	[1]	'	'
Type of Derivative	'Forward-starting Swap		'	'
Strike Rate	2.09%		'	'
Effective Date	15-Jul-14		'	'
Expiration Date	15-Jul-19		'	'
Fair Value at Significant Other Observable Inputs (Level 2)	-681		'	'
Derivative period	'5 years		'	'
Currently Paying Contracts [Member]	'		'	'
Derivative [Line Items]	'		'	'
Notional Amount	561,601		'	560,945
Fair Value at Significant Other Observable Inputs (Level 2)	240		'	55
Reclassification out of Accumulated Other Comprehensive Income [Member] | Cash Flow Hedge Adjustments [Member]	'		'	'
Derivative [Line Items]	'		'	'
Interest Expense	5,100		'	'
Swap 1 [Member] | Currently Paying Contracts [Member]	'		'	'
Derivative [Line Items]	'		'	'
Notional Amount	410,905	[2]	'	410,905	[2]
Type of Derivative	'Swap		'	'
Strike Rate	0.72%		'	'
Fair Value at Significant Other Observable Inputs (Level 2)	-234		'	-76
Swap 2 [Member] | Currently Paying Contracts [Member]	'		'	'
Derivative [Line Items]	'		'	'
Notional Amount	150,696	[3]	'	150,040	[3]
Type of Derivative	'Swap		'	'
Strike Rate	0.93%		'	'
Effective Date	17-Jul-12		'	'
Expiration Date	18-Apr-17		'	'
Fair Value at Significant Other Observable Inputs (Level 2)	$474		'	$131
SGD [Member]	'		'	'
Derivative [Line Items]	'		'	'
Exchange rate	0.8		'	0.79
[1]	In January 2014, we entered into a new forward-starting swap agreement with a notional amount of $150.0 million requiring fixed rate interest payments of 2.091% for a five-year period that commences in July 2014.
[2]	Represents the U.S. dollar tranche of the unsecured term loan.
[3]	Represents a portion of the Singapore dollar tranche of the unsecured term loan. Translation to U.S. dollars is based on exchange rate of $0.80 to 1.00 SGD as of March 31, 2014 and $0.79 to 1.00 SGD as of December 31, 2013.

Fair_Value_Of_Instruments_Esti

Fair Value Of Instruments (Estimated Fair Value And Carrying Amounts) (Details) (USD $)	Mar. 31, 2014		Dec. 31, 2013
In Thousands, unless otherwise specified
Estimated Fair Value [Member]	'		'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'		'
Unsecured senior notes	$2,422,322	[1],[2]	$2,379,999	[1],[2]
Exchangeable senior debentures	363,846	[1]	336,847	[1]
Mortgage Loans	589,378	[1]	622,580	[1]
Long-term Debt	5,192,937		5,085,078
Carrying Value [Member]	'		'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'		'
Unsecured senior notes	2,368,848	[1],[2]	2,364,232	[1],[2]
Exchangeable senior debentures	266,400	[1]	266,400	[1]
Mortgage Loans	554,742	[1]	585,608	[1]
Long-term Debt	5,007,381		4,961,892
Global Revolving Credit Facility [Member] | Estimated Fair Value [Member]	'		'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'		'
Lines of credit	790,500	[3]	724,668	[3]
Global Revolving Credit Facility [Member] | Carrying Value [Member]	'		'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'		'
Lines of credit	790,500	[3]	724,668	[3]
Unsecured Term Loan [Member] | Estimated Fair Value [Member]	'		'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'		'
Lines of credit	1,026,891	[4]	1,020,984	[4]
Unsecured Term Loan [Member] | Carrying Value [Member]	'		'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'		'
Lines of credit	1,026,891	[4]	1,020,984	[4]
Senior Notes [Member]	'		'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'		'
Long-term Debt	$14,632		$15,047
[1]	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.
[2]	The carrying value of the 2015 Notes, 2020 Notes, 2021 Notes, 2022 Notes and 2025 Notes are net of discount of $14,632 and $15,047 in the aggregate as of March 31, 2014 and December 31, 2013, respectively.
[3]	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.
[4]	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.

Commitments_And_Contingencies_

Commitments And Contingencies (Details)	3 Months Ended		12 Months Ended						3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013	Dec. 31, 2013	Mar. 31, 2014	Mar. 31, 2014	Jul. 11, 2012	Jul. 11, 2012	Mar. 31, 2014	Mar. 31, 2014	Mar. 31, 2014
	USD ($)	USD ($)	Sentrum Portfolio [Member]	Sentrum Portfolio [Member]	Sentrum Portfolio [Member]	Sentrum Portfolio [Member]	Sentrum Portfolio [Member]	Sentrum Portfolio [Member]	29 A International Business Park [Member]	29 A International Business Park [Member]	Convergence Business Park [Member]
			USD ($)	GBP (£)	USD ($)	GBP (£)	USD ($)	GBP (£)	USD ($)	SGD	USD ($)
Commitments and Contingencies [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Additional performance based consideration earned (maximum)	'	'	'	'	'	'	'	'	'	50,000,000	'
Additional performance based consideration earned (maximum), adjusted for exchange rate	'	'	'	'	'	'	'	'	39,800,000	'	'
Expiration of earnout contingency	'	'	'	'	'	'	'	'	'November 2020	'November 2020	'
Lease expiration period	'	'	'	'	'	'	'	'	'	'	'April 2017
Sale price of building	'	'	'	'	'	'	'	'	'	'	24,000,000
Real estate price, per square acre	'	'	'	'	'	'	'	'	'	'	225,000
Contingent liability	'	'	'	'	62,000,000	37,200,000	87,600,000	56,500,000	'	'	'
Change in fair value of accrued contingent consideration	-3,403,000	1,300,000	'	'	'	'	'	'	'	'	'
Earnout payment	'	'	25,800,000	16,900,000	'	'	'	'	'	'	'
Commitments related to construction contracts	$281,400,000	'	'	'	'	'	'	'	'	'	'

Subsequent_Events_Narrative_De

Subsequent Events (Narrative) (Details) (Subsequent Event [Member], Guaranteed Notes due 2013 at 4.750% [Member])	Apr. 01, 2014	Apr. 01, 2014
	USD ($)	GBP (£)
Subsequent Event [Line Items]	'	'
Debt instrument, face amount	$498,900,000	£ 300,000,000
Exchange rate	1.66	'
Interest rate	4.75%	4.75%

Subsequent_Events_Schedule_Of_

Subsequent Events (Schedule Of Dividends Declared And Distributions Per Unit) (Details) (USD $)

3 Months Ended

12 Months Ended

3 Months Ended

0 Months Ended

3 Months Ended

0 Months Ended

3 Months Ended

0 Months Ended

3 Months Ended

0 Months Ended

3 Months Ended

0 Months Ended

3 Months Ended

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Apr. 29, 2014

Mar. 31, 2014

Apr. 29, 2014

Mar. 31, 2014

Apr. 29, 2014

Mar. 31, 2014

Apr. 29, 2014

Mar. 31, 2014

Apr. 29, 2014

Mar. 31, 2014

Series E Cumulative Convertible Preferred Stock/Units [Member]

Series E Cumulative Convertible Preferred Stock/Units [Member]

Series F Cumulative Convertible Preferred Stock/Units [Member]

Series G Cumulative Convertible Preferred Stock/Units [Member]

Series H Cumulative Convertible Preferred Stock/Units [Member]

Subsequent Event [Member]

Subsequent Event [Member]

Subsequent Event [Member]

Subsequent Event [Member]

Subsequent Event [Member]

Subsequent Event [Member]

Subsequent Event [Member]

Subsequent Event [Member]

Subsequent Event [Member]

Subsequent Event [Member]

Series E Cumulative Convertible Preferred Stock/Units [Member]

Series E Cumulative Convertible Preferred Stock/Units [Member]

Series F Cumulative Convertible Preferred Stock/Units [Member]

Series F Cumulative Convertible Preferred Stock/Units [Member]

Series G Cumulative Convertible Preferred Stock/Units [Member]

Series G Cumulative Convertible Preferred Stock/Units [Member]

Series H Cumulative Convertible Preferred Stock/Units [Member]

Series H Cumulative Convertible Preferred Stock/Units [Member]

Common Stock [Member]

Common Stock [Member]

Subsequent Event [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Dividend and distribution amount

'

'

'

'

'

$0.44

'

$0.41

'

$0.37

'

$0.49

[1]

'

$0.83

'

Dividend and distribution payable date

'

'

'

'

'

'

30-Jun-14

'

30-Jun-14

'

30-Jun-14

'

30-Jun-14

'

30-Jun-14

Dividend and distribution payable to holders of record on

'

'

'

'

'

'

13-Jun-14

'

13-Jun-14

'

13-Jun-14

'

13-Jun-14

'

13-Jun-14

Annual equivalent rate of dividend and distribution

$1.75

$1.75

$1.66

$1.47

$1.84

$1.75

'

$1.66

'

$1.47

'

$1.84

'

$3.32

'

[1]

Represents a pro rata dividend from and including the original issue date to and including June 30, 2014.