Property Dispositions	3 Months Ended
Mar. 31, 2020
Discontinued Operations and Disposal Groups [Abstract]
Property Dispositions	Property Dispositions Property Dispositions In March 2020, the Company sold The Varsity, an owned property located near University of Maryland in College Park, Maryland, containing 901 beds for $148.0 million, resulting in net cash proceeds of approximately $146.1 million. The net gain on this disposition totaled approximately $48.5 million.

The entire disclosure related to a disposal group. Includes, but is not limited to, a discontinued operation, disposal classified as held-for-sale or disposed of by means other than sale or disposal of an individually significant component.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-URI http://asc.fasb.org/topic&trid=2155823

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-URI http://asc.fasb.org/subtopic&trid=2122178

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