Equity - Additional Information (Details)	3 Months Ended
	Mar. 31, 2020 USD ($) $ / shares shares	Mar. 31, 2019 USD ($) $ / shares shares	Dec. 31, 2019 shares	Dec. 31, 2018 shares	Jul. 31, 2015 shares
Equity [Line Items]
Common shares, shares issued (in shares)	255,232,130		254,770,719
Issuance of common shares, net | $	$ 17,265,000	$ 0
Authorized amount (in shares)				10,000,000	10,000,000
Treasury stock acquired (in shares)	1,329,940	441,581
Treasury stock acquired, average cost (in dollars per share) | $ / shares	$ 8.28	$ 8.13
Shares remaining available for repurchase (in shares) | $	$ 8,976,315
OP unit equivalent in common shares	1.13
Partners' capital account (in units)	2,750,000
Share-based Payment Arrangement
Equity [Line Items]
Shares granted (in shares)	11,675	32,316
Grant date fair value | $	$ 125,000	$ 264,000
At The Market
Equity [Line Items]
Common shares, shares issued (in shares)	1,559,714	0
Issuance of common shares, net | $	$ 17,266,000
Common shares amount available for issuance | $	$ 278,551,000