Debt (Schedule of Debt) (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Debt Instrument [Line Items]
Revolving credit facility - unsecured	$ 245,000	$ 42,000
Unamortized loan costs	(8,912)	(8,538)
Debt	1,135,051	1,147,511
Debt instrument, unamortized discount	(2,278)
Bank term loans - unsecured
Debt Instrument [Line Items]
Bank term loans - unsecured	200,000	240,000
2031 Senior Notes - unsecured, net of discount of $2,278 and $2,600
Debt Instrument [Line Items]
Bank term loans - unsecured	397,722	397,400
Debt instrument, unamortized discount	(2,278)	(2,600)
Private placement notes - unsecured
Debt Instrument [Line Items]
Bank term loans - unsecured	225,000	400,000
Fannie Mae term loans - secured, non-recourse
Debt Instrument [Line Items]
Fannie Mae term loans - secured, non-recourse	$ 76,241	$ 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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