Fair Value Measurements (Details Textual) - USD ($) $ in Thousands |
9 Months Ended | 12 Months Ended | |||||
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Sep. 30, 2021 |
Dec. 31, 2020 |
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Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] | |||||||
Derivative, description of terms | We receive a cash settlement in the future if the prevailing interest rate is higher than the 3% strike price on the five year swap rate. Alternatively, if interest rates were to decrease below the specified strike price we would not receive a cash settlement, nor would we have any requirement to make a payment. | We receive a cash settlement in the future if the prevailing interest rate is higher than the 1.68% five year swap strike price. The amount of future cash settlement is capped if the prevailing interest rate exceeds 2.78%. Alternatively, if interest rates were to decrease below the specified strike price we would not receive a cash settlement, nor would we have any requirement to make a payment. | |||||
Derivative strike rate for limited settlement | 2.78% | ||||||
Investment in IQHQ | $ 24,591 | $ 12,500 | |||||
Fair Value, Recurring | RET Ventures [Member] | |||||||
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] | |||||||
Investment in IQHQ | [1] | 4,497 | 2,293 | ||||
Interest Rate Option [Member] | |||||||
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] | |||||||
Payments for purchase of swaption | 5,600 | 12,100 | |||||
Swaption, notional amount | $ 500,000 | $ 1,500,000 | |||||
Derivative strike rate | 3.00% | 1.68% | |||||
Derivative swap rate period | 5 years | ||||||
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