Severance ExpenseOn December 31, 2020, the Company's Senior Vice President - Asset Management, Michael L. Hirons, retired from the Company. Mr. Hirons' retirement was a "Qualifying Termination" under the Company's Employee Severance and Retirement Vesting Plan. For the year ended December 31, 2020, severance expense totaled $2.9 million and included cash payments totaling $1.6 million, and accelerated vesting of nonvested shares and performance shares totaling $1.3 million.

Severance expense

$ 1,300

Severance Expense (Details) - USD ($) $ in Thousands	12 Months Ended
Severance Expense (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Related Party Transaction [Line Items]
Severance expense	$ 0	$ 0	$ 2,868
Severance [Text Block]	Severance ExpenseOn December 31, 2020, the Company's Senior Vice President - Asset Management, Michael L. Hirons, retired from the Company. Mr. Hirons' retirement was a "Qualifying Termination" under the Company's Employee Severance and Retirement Vesting Plan. For the year ended December 31, 2020, severance expense totaled $2.9 million and included cash payments totaling $1.6 million, and accelerated vesting of nonvested shares and performance shares totaling $1.3 million.
Employee Severance [Member] \| Expected Cash Payment [Member]
Related Party Transaction [Line Items]
Severance expense			1,600
Nonvested Shares and Performance Shares \| Employee Severance [Member] \| Accelerated Vesting of Shares [Member]
Related Party Transaction [Line Items]
Severance expense			$ 1,300