Subsequent Events (Details) $ in Millions	1 Months Ended	2 Months Ended
Sep. 30, 2021 USD ($)	Feb. 15, 2022 USD ($) property item lease shares
Subsequent events
Proceeds from stock transaction	$ 192.3
Subsequent Events
Subsequent events
Number of lease properties to be acquired \| property		3
Subsequent Events \| Asset Acquisition, Lease Properties [Member]
Subsequent events
Expected price of acquisition of properties		$ 122.0
Number of new Ground Leases to be entered into \| lease		3
Subsequent Events \| Caret Units
Subsequent events
Number of units sold \| shares		108,571
Number of additional shares to be sold under binding purchase commitment \| shares		28,571
Proceeds from stock transaction		$ 24.0
Period in which the entity is obligated to provide a public market listing		2 years
Subsequent Events \| Master Note Agreement \| 3.980% Senior Notes
Subsequent events
Aggregate principal amount		$ 475.0
Stated interest rate		3.98%
Subsequent Events \| Master Note Agreement \| 3.980% Senior Notes \| Maximum
Subsequent events
Number of fund draws allowed \| item		2
Subsequent Events \| iStar Inc.
Subsequent events
Proceeds from sale of lease properties		$ 3,070.0

The number of draws of funds allowed per terms of agreement.

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- Definition

Number of lease properties to be acquired.

+ References

No definition available.

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- Definition

Number of new Ground Leases to be entered into.

+ References

No definition available.

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- Definition

The period of time in which the entity is obligated to provide a public market listing under terms of investor unit sales agreement.

+ References

No definition available.

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- Definition

The number of shares to be issued or sold by the subsidiary or equity method investee under a binding purchase commitment..

+ References

No definition available.

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- Definition

Purchase price of expected asset acquisition prior to consideration being transferred.

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- Definition

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

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

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The cash inflow from the issuance of common stock, preferred stock, treasury stock, stock options, and other types of equity.

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- Definition

The cash inflow from the sale of property, plant and equipment (capital expenditures), software, and other intangible assets.

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- Definition

The number of shares issued or sold by the subsidiary or equity method investee per stock transaction.

+ References

No definition available.

+ Details

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- 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.

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