Leases - Rent Deferrals (Details) $ in Millions	12 Months Ended
Dec. 31, 2020 USD ($)
Medical Office
Lessor, Lease, Description [Line Items]
Rent deferred amount	$ 6
Life Science
Lessor, Lease, Description [Line Items]
Rent deferred amount	$ 1

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.

No definition available.

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Balance Type:	na
Period Type:	duration