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Fair Value - Measurement of Fair Value of Major Asset and Liability classed (Details) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available for sale investments (Note 8a) | $ 1,713 | $ 1,712
Available for sale investments (long-term) (b) | 32,663 | 20,579
Total assets | 34,388 | 22,291
Total Liabilities | 3,670 |
Interest rate cap and interest rate swap | Total derivatives designated as hedging instruments |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Derivative instruments (c) | 12 |
Derivative instruments (c) | 3,670 |
Level 1 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available for sale investments (Note 8a) | 1,713 | 1,712
Available for sale investments (long-term) (b) | 0 | 0
Total assets | 1,713 | 1,712
Total Liabilities | 0 |
Level 1 | Interest rate cap and interest rate swap | Total derivatives designated as hedging instruments |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Derivative instruments (c) | 0 |
Derivative instruments (c) | 0 |
Level 2 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available for sale investments (Note 8a) | 0 | 0
Available for sale investments (long-term) (b) | 0 | 0
Total assets | 12 | 0
Total Liabilities | 3,670 |
Level 2 | Interest rate cap and interest rate swap | Total derivatives designated as hedging instruments |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Derivative instruments (c) | 12 |
Derivative instruments (c) | 3,670 |
Level 3 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available for sale investments (Note 8a) | 0 | 0
Available for sale investments (long-term) (b) | 0 | 0
Total assets | 0 | 0
Total Liabilities | 0 |
Level 3 | Interest rate cap and interest rate swap | Total derivatives designated as hedging instruments |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Derivative instruments (c) | 0 |
Derivative instruments (c) | 0 |
Fair Value Measured at Net Asset Value Per Share |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available for sale investments (Note 8a) | 0 | 0
Available for sale investments (long-term) (b) | 32,663 | 20,579
Total assets | 32,663 | $ 20,579
Total Liabilities | 0 |
Fair Value Measured at Net Asset Value Per Share | Interest rate cap and interest rate swap | Total derivatives designated as hedging instruments |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Derivative instruments (c) | 0 |
Derivative instruments (c) | $ 0 |

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