Income Taxes (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Operating Loss Carryforwards [Line Items]
Provision for income taxes	$ 11,490,000	$ 4,634,000	$ 18,672,000	$ 8,900,000
Percentage of income distributed (at least)			100.00%
Net deferred tax liability	665,100,000		$ 665,100,000		$ 143,400,000
Federal
Operating Loss Carryforwards [Line Items]
Provision for income taxes	0	0	0	0
Digital Realty Trust, L.P.
Operating Loss Carryforwards [Line Items]
Provision for income taxes	$ 11,490,000	$ 4,634,000	18,672,000	$ 8,900,000
Digital Realty Trust, L.P. | Federal
Operating Loss Carryforwards [Line Items]
Provision for income taxes			$ 0