CONDENSED CONSOLIDATED INCOME STATEMENTS (unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Operating Revenues:
Total operating revenues	$ 1,024,668	$ 806,466	$ 2,841,000	$ 2,421,778
Operating Expenses:
Rental property operating and maintenance	358,679	259,431	957,034	766,417
Property taxes and insurance	42,659	41,358	136,770	126,587
Depreciation and amortization	365,842	286,718	1,006,464	888,766
General and administrative	91,352	49,985	249,181	156,427
Transactions and integration	14,953	4,115	87,372	10,819
Impairment of investments in real estate	6,482	0	6,482	5,351
Other	298	92	434	12,129
Total operating expenses	880,265	641,699	2,443,737	1,966,496
Operating income	144,403	164,767	397,263	455,282
Other Income (Expenses):
Equity in loss of unconsolidated joint ventures	(2,056)	(19,269)	(88,684)	(3,090)
Gain on deconsolidation, net	0	0	0	67,497
Gain on disposition of properties, net	10,410	0	315,211	0
Interest and other income, net	4,348	16,842	22,969	55,266
Interest expense	(89,499)	(84,574)	(255,173)	(272,177)
Income tax expense	(16,053)	(4,826)	(34,725)	(13,726)
Loss from early extinguishment of debt	(53,007)	(5,366)	(53,639)	(39,157)
Net (loss) income	(1,454)	67,574	303,222	249,895
Net loss (income) attributable to noncontrolling interests	1,316	(1,077)	(4,515)	(6,418)
Net (loss) income attributable to Digital Realty Trust, Inc./Digital Realty Trust, L.P.	(138)	66,497	298,707	243,477
Preferred stock/ units distributions, including undeclared dividends/ distributions	(20,712)	(16,670)	(63,022)	(54,283)
Issuance costs associated with redeemed preferred stock/ units	(16,520)	0	(16,520)	(11,760)
Net (loss) income available to common stockholders/ unitholders	$ (37,370)	$ 49,827	$ 219,165	$ 177,434
Net (loss) income per share/ unit available to common stockholders:
Basic (in dollars per share/unit)	$ (0.14)	$ 0.24	$ 0.86	$ 0.85
Diluted (in dollars per share/unit)	$ (0.14)	$ 0.24	$ 0.85	$ 0.85
Weighted average common units outstanding:
Basic (shares/units)	270,214,413	208,421,470	253,377,527	208,173,995
Diluted (shares/units)	270,214,413	209,801,771	256,362,579	209,199,535
Digital Realty Trust, L.P.
Operating Revenues:
Total operating revenues	$ 1,024,668	$ 806,466	$ 2,841,000	$ 2,421,778
Operating Expenses:
Rental property operating and maintenance	358,679	259,431	957,034	766,417
Property taxes and insurance	42,659	41,358	136,770	126,587
Depreciation and amortization	365,842	286,718	1,006,464	888,766
General and administrative	91,352	49,985	249,181	156,427
Transactions and integration	14,953	4,115	87,372	10,819
Impairment of investments in real estate	6,482	0	6,482	5,351
Other	298	92	434	12,129
Total operating expenses	880,265	641,699	2,443,737	1,966,496
Operating income	144,403	164,767	397,263	455,282
Other Income (Expenses):
Equity in loss of unconsolidated joint ventures	(2,056)	(19,269)	(88,684)	(3,090)
Gain on deconsolidation, net	0	0	0	67,497
Gain on disposition of properties, net	10,410	0	315,211	0
Interest and other income, net	4,348	16,842	22,969	55,266
Interest expense	(89,499)	(84,574)	(255,173)	(272,177)
Income tax expense	(16,053)	(4,826)	(34,725)	(13,726)
Loss from early extinguishment of debt	(53,007)	(5,366)	(53,639)	(39,157)
Net (loss) income	(1,454)	67,574	303,222	249,895
Net loss (income) attributable to noncontrolling interests	316	1,223	3,685	1,582
Net (loss) income attributable to Digital Realty Trust, Inc./Digital Realty Trust, L.P.	(1,138)	68,797	306,907	251,477
Preferred stock/ units distributions, including undeclared dividends/ distributions	(20,712)	(16,670)	(63,022)	(54,283)
Issuance costs associated with redeemed preferred stock/ units	(16,520)	0	(16,520)	(11,760)
Net (loss) income available to common stockholders/ unitholders	$ (38,370)	$ 52,127	$ 227,365	$ 185,434
Net (loss) income per share/ unit available to common stockholders:
Basic (in dollars per share/unit)	$ (0.14)	$ 0.24	$ 0.87	$ 0.85
Diluted (in dollars per share/unit)	$ (0.14)	$ 0.24	$ 0.86	$ 0.85
Weighted average common units outstanding:
Basic (shares/units)	278,079,187	217,375,296	261,416,412	217,254,811
Diluted (shares/units)	278,079,187	218,755,597	264,401,464	218,280,351
Rental and other services
Operating Revenues:
Total operating revenues	$ 1,020,931	$ 802,472	$ 2,828,678	$ 2,413,888
Rental and other services | Digital Realty Trust, L.P.
Operating Revenues:
Total operating revenues	1,020,931	802,472	2,828,678	2,413,888
Fee income and other
Operating Revenues:
Total operating revenues	3,737	3,994	12,322	7,890
Fee income and other | Digital Realty Trust, L.P.
Operating Revenues:
Total operating revenues	$ 3,737	$ 3,994	$ 12,322	$ 7,890