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v3.20.2

Fair Value of Financial Instruments - Narrative (Details) | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2020 USD ($) financial_instrument shares | Jun. 30, 2019 USD ($) | Jun. 30, 2020 USD ($) financial_instrument shares | Jun. 30, 2019 USD ($) | Dec. 31, 2019 USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Sale of shares equity securities investments (in shares) | shares | 705,926 |  | 705,926 |  |
Realized gain on sale of equity securities | $ 31,421 |  | $ 31,421 | $ 474,000 |
Unrealized gains on equity securities | 1,100,000 |  | 208,000 | (101,000) |
Fair value of equity securities | $ 1,800,000 |  | $ 1,800,000 |  | $ 4,300,000
Derivative asset, number of instruments held | financial_instrument | 1 |  | 1 |  |
Net realizable value | $ 95,331,000 |  | $ 95,331,000 |  | 98,186,000
Asset impairments | 6,079,000 | $ 0 | 6,079,000 | $ 0 |
$20 million Term loan, due January 1, 2024 | Interest Rate Swap | Level 2 Inputs |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Derivative liability | 100,000 |  | 100,000 |  |
Derivative asset |  |  |  |  | $ 6,088
Palmer of Texas |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Net realizable value | 2,100,000 |  | 2,100,000 |  |
Fair value | 1,700,000 |  | 1,700,000 |  |
Asset impairments | $ 6,100,000 |  | $ 6,000,000.0 |  |

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