Debt (Schedule of Debt) (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Debt Instrument [Line Items]
Revolving credit facility - unsecured	$ 196,000	$ 42,000
Unamortized loan costs	(10,192)	(8,538)
Debt	1,134,815	1,147,511
Discount	2,439
Bank Term Loans
Debt Instrument [Line Items]
Bank term loans - unsecured	200,000	240,000
Senior Notes Due 2031
Debt Instrument [Line Items]
Bank term loans - unsecured	397,561	397,400
Discount	2,439	2,600
Private Placement Term Loans
Debt Instrument [Line Items]
Bank term loans - unsecured	275,000	400,000
Fannie Mae Term Loans
Debt Instrument [Line Items]
Fannie Mae term loans - secured, non-recourse	$ 76,446	$ 76,649

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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