Condensed Consolidated Income Statements (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Operating Revenues:
Rental	$ 285,953	$ 234,923	$ 567,352	$ 457,757
Tenant reimbursements	76,681	60,422	152,598	118,284
Construction management	728	1,954	1,534	4,406
Other	140	6,405	388	6,405
Total operating revenues	363,502	303,704	721,872	586,852
Operating Expenses:
Rental property operating	106,336	87,576	213,116	167,421
Property taxes	19,374	15,769	40,416	31,811
Insurance	2,238	2,260	4,443	4,490
Construction management	294	596	678	789
Depreciation and amortization	115,867	89,000	227,490	172,995
General and administrative	17,891	15,109	33,842	29,359
Transactions	1,491	4,608	3,254	5,285
Other	17	337	53	337
Total operating expenses	263,508	215,255	523,292	412,487
Operating income	99,994	88,449	198,580	174,365
Other Income (Expenses):
Equity in earnings of unconsolidated joint ventures	2,330	3,493	4,665	4,882
Gain on insurance settlement	5,597		5,597
Interest and other income	(6)	1,216	35	1,925
Interest expense	(47,583)	(37,681)	(95,661)	(75,711)
Tax expense	(210)	(1,206)	(1,413)	(1,927)
Loss from early extinguishment of debt	(501)	(303)	(501)	(303)
Net income	59,621	53,968	111,302	103,231
Net income attributable to noncontrolling interests	(1,145)	(1,634)	(2,115)	(2,855)
Net income attributable to Digital Realty Trust, Inc./Digital Realty Trust, L.P.	58,476	52,334	109,187	100,376
Preferred stock dividends/Preferred units distributions	(11,399)	(10,313)	(19,453)	(19,144)
Net income available to common stockholders/unitholders	47,077	42,021	89,734	81,232
Net income per share/unit available to common stockholders/unitholders:
Basic	$ 0.37	$ 0.38	$ 0.70	$ 0.75
Diluted	$ 0.37	$ 0.38	$ 0.70	$ 0.75
Weighted average common shares/units outstanding:
Basic	128,419,745	109,761,017	127,437,970	108,430,437
Diluted	128,623,076	110,166,082	127,627,496	108,809,574
Digital Realty Trust, L.P. [Member]
Operating Revenues:
Rental	285,953	234,923	567,352	457,757
Tenant reimbursements	76,681	60,422	152,598	118,284
Construction management	728	1,954	1,534	4,406
Other	140	6,405	388	6,405
Total operating revenues	363,502	303,704	721,872	586,852
Operating Expenses:
Rental property operating	106,336	87,576	213,116	167,421
Property taxes	19,374	15,769	40,416	31,811
Insurance	2,238	2,260	4,443	4,490
Construction management	294	596	678	789
Depreciation and amortization	115,867	89,000	227,490	172,995
General and administrative	17,891	15,109	33,842	29,359
Transactions	1,491	4,608	3,254	5,285
Other	17	337	53	337
Total operating expenses	263,508	215,255	523,292	412,487
Operating income	99,994	88,449	198,580	174,365
Other Income (Expenses):
Equity in earnings of unconsolidated joint ventures	2,330	3,493	4,665	4,882
Gain on insurance settlement	5,597		5,597
Interest and other income	(6)	1,216	35	1,925
Interest expense	(47,583)	(37,681)	(95,661)	(75,711)
Tax expense	(210)	(1,206)	(1,413)	(1,927)
Loss from early extinguishment of debt	(501)	(303)	(501)	(303)
Net income	59,621	53,968	111,302	103,231
Net (income) loss attributable to noncontrolling interests in consolidated joint ventures	(209)	27	(355)	392
Net income attributable to Digital Realty Trust, Inc./Digital Realty Trust, L.P.	59,412	53,995	110,947	103,623
Preferred stock dividends/Preferred units distributions	(11,399)	(10,313)	(19,453)	(19,144)
Net income available to common stockholders/unitholders	$ 48,013	$ 43,682	$ 91,494	$ 84,479
Net income per share/unit available to common stockholders/unitholders:
Basic	$ 0.37	$ 0.38	$ 0.70	$ 0.75
Diluted	$ 0.37	$ 0.38	$ 0.70	$ 0.75
Weighted average common shares/units outstanding:
Basic	130,973,952	114,100,498	129,936,759	112,766,660
Diluted	131,177,283	114,505,563	130,126,285	113,145,797