Represents the ownership percentage expressed as a percentage.

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Represents the ratio for conversion of Operating Partnership units held by noncontrolling interests into common stock at the option of the entity.

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Represents the number of units held in the Operating Partnership.

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Per unit of ownership amount of cash distributions declared to unit-holder of a limited partnership (LP).

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Decrease in noncontrolling interest (for example, but not limited to, redeeming or purchasing the interests of noncontrolling shareholders, issuance of shares (interests) by the non-wholly owned subsidiary to the parent entity for other than cash, and a buyback of shares (interest) by the non-wholly owned subsidiary from the noncontrolling interests).

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity.

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The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

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Redemption value, as if currently redeemable, of redeemable noncontrolling interest classified as temporary equity and the election has been made to accrete changes in redemption value to the earliest redemption date.

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Price of a single share of a number of saleable stocks of a company.

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No definition available.

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The number of shares issued during the period upon the conversion of units. An example of a convertible unit is an umbrella partnership real estate investment trust unit (UPREIT unit).

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Number, before forfeiture, of shares issued under share-based payment arrangement. Excludes employee stock ownership plan (ESOP).

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Noncontrolling Interests - Operating Partnership (Details) $ / shares in Units, $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2020 USD ($) $ / shares shares	Mar. 31, 2020 USD ($)	Jun. 30, 2019 USD ($)	Jun. 30, 2020 USD ($) $ / shares shares	Dec. 31, 2019 shares
Noncontrolling Interests - Operating Partnership
Redemption value of the noncontrolling interest \| $	$ 744,500			$ 744,500
Closing price of the Company's stock (in dollars per share) \| $ / shares	$ 121.06			$ 121.06
Carlyle Group
Noncontrolling Interests - Operating Partnership
Conversion ratio for common operating partnership units				1
Sale of common stock (in shares)				4,620,000
Reduction to noncontrolling interests in the Operating Partnership and an increase to common stock and additional paid in capital \| $				$ 22,600
Noncontrolling Interests
Noncontrolling Interests - Operating Partnership
Reduction to noncontrolling interests in the Operating Partnership and an increase to common stock and additional paid in capital \| $	$ 22,557	$ 11	$ 20
Operating partnership
Noncontrolling Interests - Operating Partnership
Conversion ratio for common operating partnership units				1
Number of Operating Partnership Units (in shares)	48,177,083			48,177,083	48,016,645
Percentage of Total	100.00%			100.00%	100.00%
Shares of common stock issued related to employee compensation arrangements				162,578
Quarterly distributions will receive by holders of operating partnership units (in dollars per unit) \| $ / shares				$ 2.44
Operating partnership \| Coresite Realty Corporation
Noncontrolling Interests - Operating Partnership
Number of Operating Partnership Units (in shares)	42,027,565			42,027,565	37,244,987
Percentage of Total	87.20%			87.20%	77.60%
Operating partnership \| Noncontrolling interests
Noncontrolling Interests - Operating Partnership
Number of Operating Partnership Units (in shares)	6,149,518			6,149,518	10,771,658
Percentage of Total	12.80%			12.80%	22.40%