Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Net income	$ 256,267	$ 431,852	$ 301,591
Other comprehensive income:
Foreign currency translation adjustments	28,709	(86,621)	(51,745)
(Decrease) increase in fair value of interest rate swaps and foreign currency hedges	(3,434)	41,998	(3,407)
Reclassification to interest expense from interest rate swaps	2,459	4,968	2,621
Comprehensive income	284,001	392,197	249,060
Comprehensive income attributable to noncontrolling interests	(8,569)	(5,025)	(3,915)
Comprehensive income attributable to Digital Realty Trust, Inc.	275,432	387,172	245,145
Digital Realty Trust, L.P.
Net income	256,267	431,852	300,226
Other comprehensive income:
Foreign currency translation adjustments	28,709	(86,621)	(51,745)
(Decrease) increase in fair value of interest rate swaps and foreign currency hedges	(3,434)	41,998	(3,407)
Reclassification to interest expense from interest rate swaps	2,459	4,968	2,621
Comprehensive income	284,001	392,197	247,695
Comprehensive income attributable to noncontrolling interests	(4,238)	(367)	(460)
Comprehensive income attributable to Digital Realty Trust, Inc.	$ 279,763	$ 391,830	$ 247,235