Condensed Consolidated Income Statements (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Operating Revenues:
Rental	$ 234,923	$ 202,806	$ 457,757	$ 399,601
Tenant reimbursements	60,422	51,311	118,284	103,145
Construction management	1,954	13,759	4,406	15,576
Other	6,405	5	6,405	300
Total operating revenues	303,704	267,881	586,852	518,622
Operating Expenses:
Rental property operating and maintenance	87,576	72,337	167,421	144,060
Property taxes	15,769	13,962	31,811	27,433
Insurance	2,260	1,998	4,490	4,049
Construction management	596	11,199	789	12,936
Depreciation and amortization	89,000	76,848	172,995	150,766
General and administrative	15,109	14,077	29,359	26,482
Transactions	4,608	740	5,285	1,421
Other	337		337	90
Total operating expenses	215,255	191,161	412,487	367,237
Operating income	88,449	76,720	174,365	151,385
Other Income (Expenses):
Equity in earnings of unconsolidated joint ventures	3,493	1,058	4,882	2,266
Interest and other income	1,216	380	1,925	644
Interest expense	(37,681)	(39,334)	(75,711)	(75,416)
Tax expense	(1,206)	(233)	(1,927)	(661)
Loss from early extinguishment of debt	(303)	(363)	(303)	(978)
Net income	53,968	38,228	103,231	77,240
Net income attributable to noncontrolling interests	(1,634)	(1,525)	(2,855)	(3,035)
Net income attributable to Digital Realty Trust, Inc./Digital Realty Trust, L.P.	52,334	36,703	100,376	74,205
Preferred stock dividends/Preferred units distributions	(10,313)	(4,713)	(19,144)	(11,235)
Net income available to common stockholders/unitholders	42,021	31,990	81,232	62,970
Net income per share/unit available to common stockholders/unitholders:
Basic	$ 0.38	$ 0.33	$ 0.75	$ 0.67
Diluted	$ 0.38	$ 0.33	$ 0.75	$ 0.66
Weighted average common shares/units outstanding:
Basic	109,761,017	96,295,585	108,430,437	93,875,415
Diluted	110,166,082	97,511,811	108,809,574	95,012,965
Digital Realty Trust, L.P. [Member]
Operating Revenues:
Rental	234,923	202,806	457,757	399,601
Tenant reimbursements	60,422	51,311	118,284	103,145
Construction management	1,954	13,759	4,406	15,576
Other	6,405	5	6,405	300
Total operating revenues	303,704	267,881	586,852	518,622
Operating Expenses:
Rental property operating and maintenance	87,576	72,337	167,421	144,060
Property taxes	15,769	13,962	31,811	27,433
Insurance	2,260	1,998	4,490	4,049
Construction management	596	11,199	789	12,936
Depreciation and amortization	89,000	76,848	172,995	150,766
General and administrative	15,109	14,077	29,359	26,482
Transactions	4,608	740	5,285	1,421
Other	337		337	90
Total operating expenses	215,255	191,161	412,487	367,237
Operating income	88,449	76,720	174,365	151,385
Other Income (Expenses):
Equity in earnings of unconsolidated joint ventures	3,493	1,058	4,882	2,266
Interest and other income	1,216	380	1,925	644
Interest expense	(37,681)	(39,334)	(75,711)	(75,416)
Tax expense	(1,206)	(233)	(1,927)	(661)
Loss from early extinguishment of debt	(303)	(363)	(303)	(978)
Net income	53,968	38,228	103,231	77,240
Net loss attributable to noncontrolling interests in consolidated joint ventures	27	57	392	199
Net income attributable to Digital Realty Trust, Inc./Digital Realty Trust, L.P.	53,995	38,285	103,623	77,439
Preferred stock dividends/Preferred units distributions	(10,313)	(4,713)	(19,144)	(11,235)
Net income available to common stockholders/unitholders	$ 43,682	$ 33,572	$ 84,479	$ 66,204
Net income per share/unit available to common stockholders/unitholders:
Basic	$ 0.38	$ 0.33	$ 0.75	$ 0.67
Diluted	$ 0.38	$ 0.33	$ 0.75	$ 0.66
Weighted average common shares/units outstanding:
Basic	114,100,498	101,056,387	112,766,660	98,698,968
Diluted	114,505,563	102,272,613	113,145,797	99,836,518