Business Combinations and Acquisition and Disposition of Hotel Properties - Purchase Consideration (Details) - LaSalle Hotel Properties $ in Thousands	Nov. 30, 2018 USD ($)
Business Acquisition [Line Items]
Cash	$ 1,719,150
Total consideration	4,102,094
Common shares
Business Acquisition [Line Items]
Equity interests issued	2,144,057
Preferred shares | Series E preferred shares
Business Acquisition [Line Items]
Equity interests issued	101,622
Preferred shares | Series F preferred shares
Business Acquisition [Line Items]
Equity interests issued	132,600
Operating partnership units
Business Acquisition [Line Items]
Equity interests issued	$ 4,665