Summary of Significant Accounting Policies (Supplemental Condensed Consolidated Statements of Cash Flows Information) (Details) - USD ($)	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Supplemental disclosure of cash activities:
Cash paid for interest	$ 1,704,000	$ 4,660,000
Supplemental disclosure of non-cash activities:
Capitalization of interest and financing costs		715,000
Buildings and improvements included in accounts payable and accrued liabilities	$ 187,000	$ 2,692,000