Condensed Consolidated Income Statements - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Operating Revenues:
Rental and other services	$ 596,326	$ 470,877	$ 1,188,624	$ 932,228
Tenant reimbursements	155,723	93,342	305,802	180,630
Fee income	2,343	1,429	3,476	3,324
Other	527	341	1,385	376
Total operating revenues	754,919	565,989	1,499,287	1,116,558
Operating Expenses:
Rental property operating and maintenance	230,322	174,716	455,962	344,055
Property taxes	27,284	28,161	62,547	55,080
Insurance	2,606	2,576	6,337	5,168
Depreciation and amortization	298,788	178,111	593,577	354,577
General and administrative	46,099	37,509	82,622	72,156
Transactions and integration	5,606	14,235	9,784	17,558
Other	152	24	583	24
Total operating expenses	610,857	435,332	1,211,412	848,618
Operating income	144,062	130,657	287,875	267,940
Other Income (Expenses):
Equity in earnings of unconsolidated joint ventures	7,438	8,388	14,848	13,712
Gain (loss) on sale of properties	14,192	380	53,465	(142)
Interest and other income	3,398	367	3,356	518
Interest expense	(78,810)	(57,582)	(155,795)	(113,032)
Tax expense	(2,121)	(2,639)	(5,495)	(4,862)
Net income	88,159	79,571	198,254	164,134
Net income attributable to noncontrolling interests	(2,696)	(920)	(6,164)	(1,945)
Net income attributable to Digital Realty Trust, Inc./Digital Realty Trust, L.P.	85,463	78,651	192,090	162,189
Preferred stock/unit dividends/distributions	(20,329)	(14,505)	(40,658)	(31,898)
Issuance costs associated with redeemed preferred stock/units	0	(6,309)	0	(6,309)
Net income available to common stock/unitholders	$ 65,134	$ 57,837	$ 151,432	$ 123,982
Net income per share/unit available to common stockholders/unitholders:
Basic (in dollars per share/unit)	$ 0.32	$ 0.36	$ 0.74	$ 0.77
Diluted (in dollars per share/unit)	$ 0.32	$ 0.36	$ 0.73	$ 0.77
Weighted average common shares/units outstanding:
Basic (shares/units)	205,956,005	160,832,889	205,835,757	160,069,201
Diluted (shares/units)	206,563,079	161,781,867	206,460,170	161,059,527
Digital Realty Trust, L.P.
Operating Revenues:
Rental and other services	$ 596,326	$ 470,877	$ 1,188,624	$ 932,228
Tenant reimbursements	155,723	93,342	305,802	180,630
Fee income	2,343	1,429	3,476	3,324
Other	527	341	1,385	376
Total operating revenues	754,919	565,989	1,499,287	1,116,558
Operating Expenses:
Rental property operating and maintenance	230,322	174,716	455,962	344,055
Property taxes	27,284	28,161	62,547	55,080
Insurance	2,606	2,576	6,337	5,168
Depreciation and amortization	298,788	178,111	593,577	354,577
General and administrative	46,099	37,509	82,622	72,156
Transactions and integration	5,606	14,235	9,784	17,558
Other	152	24	583	24
Total operating expenses	610,857	435,332	1,211,412	848,618
Operating income	144,062	130,657	287,875	267,940
Other Income (Expenses):
Equity in earnings of unconsolidated joint ventures	7,438	8,388	14,848	13,712
Gain (loss) on sale of properties	14,192	380	53,465	(142)
Interest and other income	3,398	367	3,356	518
Interest expense	(78,810)	(57,582)	(155,795)	(113,032)
Tax expense	(2,121)	(2,639)	(5,495)	(4,862)
Net income	88,159	79,571	198,254	164,134
Net income attributable to noncontrolling interests	4	(113)	16	(234)
Net income attributable to Digital Realty Trust, Inc./Digital Realty Trust, L.P.	88,163	79,458	198,270	163,900
Preferred stock/unit dividends/distributions	(20,329)	(14,505)	(40,658)	(31,898)
Issuance costs associated with redeemed preferred stock/units	0	(6,309)	0	(6,309)
Net income available to common stock/unitholders	$ 67,834	$ 58,644	$ 157,612	$ 125,693
Net income per share/unit available to common stockholders/unitholders:
Basic (in dollars per share/unit)	$ 0.32	$ 0.36	$ 0.74	$ 0.77
Diluted (in dollars per share/unit)	$ 0.32	$ 0.36	$ 0.73	$ 0.77
Weighted average common shares/units outstanding:
Basic (shares/units)	214,288,199	163,077,599	214,149,188	162,280,678
Diluted (shares/units)	214,895,273	164,026,577	214,773,601	163,271,004