Financing Activity - Timing of Principal Payments and Terms of Mortgage Loans (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Total
Carrying value of mortgage notes payable	$ 851,283	$ 884,503
Mortgage Loan
Total
Less: Unamortized debt issuance costs	1,200	$ 1,000
Mortgage Loan \| Consolidated Properties
Principal Amortization
2022	12,474
2023	6,587
2024	6,405
2025	4,376
2026 and thereafter	0
Total principal payments	29,842
Balloon Payments
2022	430,290
2023	53,299
2024	127,685
2025	211,346
2026 and thereafter	0
Total principal payments	822,620
Total
2022	442,764
2023	59,886
2024	134,090
2025	215,722
2026 and thereafter	0
Total principal payments	852,462
Less: Unamortized debt issuance costs	1,209
Carrying value of mortgage notes payable	$ 851,253

Long term debt balloon payment maturities repayments of principal in after year four.

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Long term debt maturities repayments of principal in after year four.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Carrying value as of the balance sheet date, including the current and noncurrent portions, of collateralized debt obligations (with maturities initially due after one year or beyond the operating cycle, if longer). Such obligations include mortgage loans, chattel loans, and any other borrowings secured by assets of the borrower.

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