Represents the denomination of the principal amount of debt that is used in conversion calculations.

No definition available.

Name:	dlr_DebtInstrumentPrincipalAmountDenominationForRedemptionOfNotes
Namespace Prefix:	dlr_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Represents information pertaining to accrued and unpaid interest oer denomination.

+ References

No definition available.

+ Details

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Balance Type:	credit
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- Definition

Price per $1000 of original principal amount of debt at which debt can be redeemed by the issuer.

+ References

No definition available.

+ Details

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Namespace Prefix:	dlr_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
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-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

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Period Type:	instant

- Definition

Percentage of principal amount of debt redeemed.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
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Period Type:	duration

- Definition

Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 50
-Section 40
-Paragraph 4
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-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3602-108585

+ Details

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- Definition

The percentage rate used to calculate dividend payments on preferred stock.

+ References

No definition available.

+ Details

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Data Type:	num:percentItemType
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Period Type:	duration

- Definition

The price per share at which the preferred stock of an entity that has priority over common stock in the distribution of dividends and in the event of liquidation of the entity is redeemed or may be called at. The redemption features of this preferred stock are solely within the control of the issuer.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 5
-Subparagraph (a)
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-Topic 505
-SubTopic 10
-Section 50
-Paragraph 11
-URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21564-112644

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

The excess of the (1) fair value of consideration transferred to the holders of a security in excess of (2) the carrying amount of the security reported on the registrant's balance sheet, which will be deducted from net earnings to derive net earnings available to common shareholders. This amount is generally an adjustment considered in the computation of earnings per share.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Per share or per unit amount of equity securities issued.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

No definition available.

+ Details

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- Details

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Balance Type:
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- Details

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- Details

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- Details

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Namespace Prefix:
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Subsequent Events (Details) - USD ($)			3 Months Ended			6 Months Ended
Subsequent Events (Details) - USD ($)	Aug. 07, 2020	Aug. 03, 2020	Sep. 30, 2020	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Subsequent Event [Line Items]
Loss from early extinguishment of debt				$ 0	$ (20,905,000)	$ (632,000)	$ (33,791,000)
Subsequent Event
Subsequent Event [Line Items]
Loss from early extinguishment of debt			$ 52,100,000
Subsequent Event \| Notes Due 2022
Subsequent Event [Line Items]
Debt face amount		$ 500,000,000
Subsequent Event \| 3.625% Notes due 2022
Subsequent Event [Line Items]
Debt face amount		$ 300,000,000
Stated interest rate		3.625%
Redemption price		$ 1,060.018
Denomination of principal amount for redemption		$ 1,000
Percentage of aggregate principal amount of notes redeemed		106.0018%
Accrued and unpaid interest		$ 12.285
Subsequent Event \| 3.950% Notes due 2022
Subsequent Event [Line Items]
Stated interest rate		3.95%
Redemption price		$ 1,060.306
Denomination of principal amount for redemption		$ 1,000
Percentage of aggregate principal amount of notes redeemed		106.0306%
Accrued and unpaid interest		$ 3.511
Subsequent Event \| Series I Cumulative Redeemable Preferred Stock
Subsequent Event [Line Items]
Dividend rate percentage	6.35%
Preferred stock, redemption price per share (in dollars per share)	$ 25.29545
Shares Issued, Price Per Share	$ 25.00
Redemption Premium	$ 8,000,000.0