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Commitments and Contingencies - University House Communities Group, Inc., Indemnity Claims (Details) - USD ($)
$ in Thousands
12 Months Ended
Jun. 14, 2019
Dec. 31, 2019
Loss Contingencies [Line Items]    
Losses from discontinued operations related to claims   $ 25,500
Settled Litigation | University House Communities Group, Inc    
Loss Contingencies [Line Items]    
Final settlement for claims awarded to other party $ 30,000