Supplemental Cash Flow Information (Details) - USD ($) |
3 Months Ended | |
|---|---|---|
Mar. 31, 2021 |
Mar. 31, 2020 |
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| Supplemental Cash Flow Information [Abstract] | ||
| Costs relating to construction included in accounts payable and accrued expenses | $ 15,849,000 | $ 18,168,000 |
| Dividends payable | 0 | 35,108,000 |
| Interest paid | $ 14,125,000 | $ 14,811,000 |
| X | ||||||||||
- Definition Expenditures Included In Construction Trade Payables No definition available.
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| X | ||||||||||
- Definition Carrying value as of the balance sheet date of dividends declared but unpaid on equity securities issued by the entity and outstanding. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of cash paid for interest, excluding capitalized interest, classified as operating activity. Includes, but is not limited to, payment to settle zero-coupon bond for accreted interest of debt discount and debt instrument with insignificant coupon interest rate in relation to effective interest rate of borrowing attributable to accreted interest of debt discount. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- References No definition available.
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