Equity - Additional Information (Details) $ / shares in Units, $ in Thousands	6 Months Ended
	Jun. 30, 2020 USD ($) $ / shares shares	Jun. 30, 2019 USD ($) $ / shares shares	Dec. 31, 2018 shares	Jul. 31, 2015 shares
Equity [Line Items]
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)	2,740,000
Share-based Payment Arrangement
Equity [Line Items]
Shares granted (in shares)	23,480	41,186
Grant date fair value | $	$ 250	$ 345
At-The-Market Program
Equity [Line Items]
Number of shares sold	5,321,588	0
Proceeds from sale of stock | $	$ 54,000
Common shares amount available for issuance | $	$ 240,932
Underwritten Offering
Equity [Line Items]
Number of shares sold	17,250,000
Proceeds from sale of stock | $	$ 164,000
Sale of stock (in dollars per share) | $ / shares	$ 9.60