Business Combinations and Acquisition and Disposition of Hotel Properties - Properties Acquired (Details) $ in Thousands									12 Months Ended
	Nov. 22, 2019 USD ($)	Sep. 26, 2019 USD ($)	Sep. 12, 2019 USD ($)	Jul. 16, 2019 USD ($)	May 29, 2019 USD ($)	Feb. 22, 2019 USD ($)	Feb. 14, 2019 USD ($)	Nov. 30, 2018 hotel_room property	Dec. 31, 2019 USD ($) hotel_room
Business Acquisition [Line Items]
Guest Rooms									14,013
Sale price | $									$ 481,921
Hotel Palomar Washington DC
Business Acquisition [Line Items]
Sale price | $						$ 141,450
The Liaison Capitol Hill
Business Acquisition [Line Items]
Sale price | $							$ 111,000
Onyx Hotel
Business Acquisition [Line Items]
Sale price | $					$ 58,255
Hotel Amarano Burbank
Business Acquisition [Line Items]
Sale price | $				$ 72,866
Rouge Hotel
Business Acquisition [Line Items]
Sale price | $			$ 42,000
Hotel Madera
Business Acquisition [Line Items]
Sale price | $		$ 23,250
Topaz Hotel
Business Acquisition [Line Items]
Sale price | $	$ 33,100
LaSalle Hotel Properties
Business Acquisition [Line Items]
Number of hotel properties acquired | property								36
Guest Rooms								8,420
LaSalle Hotel Properties | Villa Florence San Francisco on Union Square
Business Acquisition [Line Items]
Ownership Interest								100.00%
Guest Rooms								189
LaSalle Hotel Properties | Hotel Vitale
Business Acquisition [Line Items]
Ownership Interest								100.00%
Guest Rooms								200
LaSalle Hotel Properties | The Marker San Francisco
Business Acquisition [Line Items]
Ownership Interest								100.00%
Guest Rooms								208
LaSalle Hotel Properties | Hotel Spero
Business Acquisition [Line Items]
Ownership Interest								100.00%
Guest Rooms								236
LaSalle Hotel Properties | Chaminade Resort & Spa
Business Acquisition [Line Items]
Ownership Interest								100.00%
Guest Rooms								156
LaSalle Hotel Properties | Harbor Court Hotel San Francisco
Business Acquisition [Line Items]
Ownership Interest								100.00%
Guest Rooms								131
LaSalle Hotel Properties | Viceroy Santa Monica Hotel
Business Acquisition [Line Items]
Ownership Interest								100.00%
Guest Rooms								162
LaSalle Hotel Properties | Le Parc Suite Hotel
Business Acquisition [Line Items]
Ownership Interest								100.00%
Guest Rooms								154
LaSalle Hotel Properties | Montrose West Hollywood
Business Acquisition [Line Items]
Ownership Interest								100.00%
Guest Rooms								133
LaSalle Hotel Properties | Chamberlain West Hollywood Hotel
Business Acquisition [Line Items]
Ownership Interest								100.00%
Guest Rooms								115
LaSalle Hotel Properties | Grafton on Sunset
Business Acquisition [Line Items]
Ownership Interest								100.00%
Guest Rooms								108
LaSalle Hotel Properties | The Westin Copley Place, Boston
Business Acquisition [Line Items]
Ownership Interest								100.00%
Guest Rooms								803
LaSalle Hotel Properties | The Liberty, A Luxury Collection Hotel, Boston
Business Acquisition [Line Items]
Ownership Interest								99.99%
Guest Rooms								298
LaSalle Hotel Properties | Hyatt Regency Boston Harbor
Business Acquisition [Line Items]
Ownership Interest								100.00%
Guest Rooms								270
LaSalle Hotel Properties | Sofitel Washington DC Lafayette Square
Business Acquisition [Line Items]
Ownership Interest								100.00%
Guest Rooms								237
LaSalle Hotel Properties | George Hotel
Business Acquisition [Line Items]
Ownership Interest								100.00%
Guest Rooms								139
LaSalle Hotel Properties | Mason & Rook Hotel
Business Acquisition [Line Items]
Ownership Interest								100.00%
Guest Rooms								178
LaSalle Hotel Properties | Donovan Hotel
Business Acquisition [Line Items]
Ownership Interest								100.00%
Guest Rooms								193
LaSalle Hotel Properties | Paradise Point Resort & Spa
Business Acquisition [Line Items]
Ownership Interest								100.00%
Guest Rooms								462
LaSalle Hotel Properties | Hilton San Diego Gaslamp Quarter
Business Acquisition [Line Items]
Ownership Interest								100.00%
Guest Rooms								286
LaSalle Hotel Properties | Solamar Hotel
Business Acquisition [Line Items]
Ownership Interest								100.00%
Guest Rooms								235
LaSalle Hotel Properties | L'Auberge Del Mar
Business Acquisition [Line Items]
Ownership Interest								100.00%
Guest Rooms								121
LaSalle Hotel Properties | Hilton San Diego Mission Bay Resort
Business Acquisition [Line Items]
Ownership Interest								100.00%
Guest Rooms								357
LaSalle Hotel Properties | The Heathman Hotel
Business Acquisition [Line Items]
Ownership Interest								100.00%
Guest Rooms								151
LaSalle Hotel Properties | Southernmost Beach Resort
Business Acquisition [Line Items]
Ownership Interest								100.00%
Guest Rooms								262
LaSalle Hotel Properties | The Marker Key West
Business Acquisition [Line Items]
Ownership Interest								100.00%
Guest Rooms								96
LaSalle Hotel Properties | The Roger New York
Business Acquisition [Line Items]
Ownership Interest								100.00%
Guest Rooms								194
LaSalle Hotel Properties | Hotel Chicago Downtown, Autograph Collection
Business Acquisition [Line Items]
Ownership Interest								100.00%
Guest Rooms								354
LaSalle Hotel Properties | The Westin Michigan Avenue Chicago
Business Acquisition [Line Items]
Ownership Interest								100.00%
Guest Rooms								752
LaSalle Hotel Properties | Hotel Palomar Washington DC
Business Acquisition [Line Items]
Ownership Interest								100.00%
Guest Rooms								335
LaSalle Hotel Properties | The Liaison Capitol Hill
Business Acquisition [Line Items]
Ownership Interest								100.00%
Guest Rooms								343
LaSalle Hotel Properties | Onyx Hotel
Business Acquisition [Line Items]
Ownership Interest								100.00%
Guest Rooms								112
LaSalle Hotel Properties | Hotel Amarano Burbank
Business Acquisition [Line Items]
Ownership Interest								100.00%
Guest Rooms								132
LaSalle Hotel Properties | Rouge Hotel
Business Acquisition [Line Items]
Ownership Interest								100.00%
Guest Rooms								137
LaSalle Hotel Properties | Hotel Madera
Business Acquisition [Line Items]
Ownership Interest								100.00%
Guest Rooms								82
LaSalle Hotel Properties | Topaz Hotel
Business Acquisition [Line Items]
Ownership Interest								100.00%
Guest Rooms								99