Equity - Narrative (Details)		12 Months Ended
	Nov. 30, 2018 shares	Dec. 31, 2019 USD ($) $ / shares shares	Dec. 31, 2018 $ / shares shares	Jul. 27, 2017 USD ($)	Feb. 22, 2016 USD ($)
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) | $ / shares		$ 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) | $ / shares		$ 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)		190,975
Operating Partnership units outstanding (in shares)		130,484,956	130,311,289
Operating Partnership
Non-controlling Interest of Common Units in Operating Partnership
Operating Partnership units outstanding (in shares)		133,605	133,605
Series C Cumulative Redeemable Preferred Shares
Preferred Shares
Preferred stock, dividend rate, percentage		6.50%
Preferred shares of beneficial interest, redemption price per share (in usd per share) | $ / shares		$ 25.00
Preferred stock, redemption after change in control		120 days
Share cap ratio on preferred shares on conversion		2.0325
Series D Cumulative Redeemable Preferred Shares
Preferred Shares
Preferred stock, dividend rate, percentage		6.375%
Share cap ratio on preferred shares on conversion		1.9794
Series E Cumulative Redeemable Preferred Shares
Preferred Shares
Preferred stock, dividend rate, percentage	6.375%	6.375%
Preferred shares of beneficial interest, redemption price per share (in usd per share) | $ / shares		$ 25.00
Preferred stock, redemption after change in control		120 days
Share cap ratio on preferred shares on conversion		1.9372
Series F Cumulative Redeemable Preferred Shares
Preferred Shares
Preferred stock, dividend rate, percentage	6.30%	6.30%
Share cap ratio on preferred shares on conversion		2.0649
February 2016 share repurchase program
Common Shares
Share repurchase program, authorized amount | $					$ 150,000,000.0
Share repurchased (in shares)		0
Remaining authorized repurchase amount | $		$ 56,600,000
July 2017 share repurchase program
Common Shares
Share repurchase program, authorized amount | $				$ 100,000,000.0
LaSalle Hotel Properties | Preferred shares | Series E Cumulative Redeemable Preferred Shares
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 | Series F Cumulative Redeemable Preferred Shares
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
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