Shareholders' Equity (Details) $ / shares in Units, $ in Thousands					3 Months Ended	6 Months Ended
	Jul. 13, 2023 USD ($) $ / shares	Jun. 13, 2023 trustee $ / shares shares	May 18, 2023 USD ($) $ / shares	Feb. 16, 2023 USD ($) $ / shares	Jun. 30, 2023 trustee	Jun. 30, 2023 USD ($) trustee $ / shares shares	Jun. 30, 2022 USD ($) $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share repurchases (in shares) | shares						6,779	7,754
Stock repurchase price (in dollars per share)						$ 6.48	$ 7.37
Stock repurchased during period, number of trustees | trustee					1	1
Cash distribution to common shareholders (in dollars per share)			$ 0.25	$ 0.55		$ 0.80
Distributions to common shareholders | $			$ 12,141	$ 26,710		$ 38,851	$ 53,268
Subsequent Event
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Dividends declared (in dollars per share)	$ 0.25
Dividends declared | $	$ 12,150
Share Award Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of trustees | trustee		9
Trustees | Share Award Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted (in shares) | shares		3,500
Share price (in dollars per share)		$ 7.90