Equity - Narrative (Details)		12 Months Ended
	Nov. 30, 2018 shares	Dec. 31, 2020 USD ($) class $ / shares shares	Dec. 31, 2019 $ / 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)		127,111	236,351
Operating Partnership units outstanding (in shares)		130,673,300	130,484,956
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%
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		1.9794
Series E Cumulative Redeemable Preferred Shares
Preferred Shares
Preferred stock, dividend rate, percentage		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%
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		2.0649
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 | Operating partnership units
Non-controlling Interest of Common Units in Operating Partnership
Equity interests issued (in shares)	133,605
LTIP units
Non-controlling Interest of Common Units in Operating Partnership
Classes of LTIP Units | class		2