Equity - Narrative (Details) - USD ($)		12 Months Ended
	Nov. 30, 2018	Dec. 31, 2018	Dec. 31, 2017	Jul. 27, 2017	Mar. 01, 2017	Feb. 22, 2016	Mar. 05, 2014
Common Shares
Common shares of beneficial interest, authorized (in shares)		500,000,000	500,000,000
Common shares of beneficial interest, par value (usd per share)		$ 0.01	$ 0.01
Preferred Shares
Preferred shares of beneficial interest, authorized (in shares)		100,000,000	100,000,000
Preferred shares of beneficial interest, par value (usd per share)		$ 0.01	$ 0.01
Non-controlling Interest of Common Units in Operating Partnership
LTIP units, outstanding (in shares)		236,351	236,351
LTIP units, vested (shares)		145,598
Operating Partnership units outstanding (in shares)		130,311,289	68,812,575
Operating Partnership
Non-controlling Interest of Common Units in Operating Partnership
Operating Partnership units outstanding (in shares)		133,605	0
6.50% Series C preferred stock
Preferred Shares
Preferred stock, dividend rate, percentage		6.50%
Preferred shares of beneficial interest, redemption price per share (in usd per share)		$ 25.00
Preferred stock, redemption after change in control		120 days
Share cap on preferred shares on conversion (in shares)		2.0325
6.375% Series D preferred stock
Preferred Shares
Preferred stock, dividend rate, percentage		6.375%
Preferred shares of beneficial interest, redemption price per share (in usd per share)		$ 25.00
Preferred stock, redemption after change in control		120 days
Share cap on preferred shares on conversion (in shares)		1.9794
Preferred Series E shares
Preferred Shares
Preferred stock, dividend rate, percentage	6.375%	6.375%
Share cap on preferred shares on conversion (in shares)		1.9372
Preferred Series F shares
Preferred Shares
Preferred stock, dividend rate, percentage	6.30%	6.30%
Share cap on preferred shares on conversion (in shares)		2.0649
ATM Program
Common Shares
March 2014 shelf registration statement maximum amount							$ 175,000,000.0
September 2012 shelf registration statement maximum amount							$ 170,000,000
Amount available under ATM program					$ 159,800,000
February 2016 share repurchase program
Common Shares
Share repurchase program, authorized amount						$ 150,000,000
Share repurchased, shares		0
Remaining authorized repurchase amount		$ 56,600,000
July 2017 share repurchase program
Common Shares
Share repurchase program, authorized amount				$ 100,000,000
LaSalle Hotel Properties | Common shares
Common Shares
Equity interests issued (in shares)	61,399,104
Preferred Shares
Equity interests issued (in shares)	61,399,104
Non-controlling Interest of Common Units in Operating Partnership
Equity interests issued (in shares)	61,399,104
LaSalle Hotel Properties | Preferred shares | Preferred Series E shares
Common Shares
Equity interests issued (in shares)	4,400,000
Preferred Shares
Equity interests issued (in shares)	4,400,000
Non-controlling Interest of Common Units in Operating Partnership
Equity interests issued (in shares)	4,400,000
LaSalle Hotel Properties | Preferred shares | Preferred Series F shares
Common Shares
Equity interests issued (in shares)	6,000,000
Preferred Shares
Equity interests issued (in shares)	6,000,000
Non-controlling Interest of Common Units in Operating Partnership
Equity interests issued (in shares)	6,000,000
LaSalle Hotel Properties | Operating partnership units
Common Shares
Equity interests issued (in shares)	133,605
Preferred Shares
Equity interests issued (in shares)	133,605
Non-controlling Interest of Common Units in Operating Partnership
Equity interests issued (in shares)	133,605