Summary of Significant Accounting Policies (Supplemental Consolidated Statements of Cash Flows Information) (Details) - USD ($) |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2021 |
Dec. 31, 2020 |
Dec. 31, 2019 |
|
| Supplemental disclosure of cash activities: | |||
| Cash paid for interest | $ 20,219,000 | $ 23,208,000 | $ 23,859,000 |
| Supplemental disclosure of non-cash activities: | |||
| Capitalization of interest and financing costs | 3,399,000 | 2,674,000 | 1,649,000 |
| Buildings and improvements included in accounts payable and accrued liabilities | $ 871,000 | 2,976,000 | 3,669,000 |
| Recognition of right-of-use assets and related lease liabilities | $ 703,000 | $ 13,778,000 | |