Long-Term Debt and Notes Payable - Principal Maturities of Long-Term Debt (Details) - USD ($) $ in Thousands  | 
Dec. 31, 2019  | 
Dec. 31, 2018  | 
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| Maturities of Long-term Debt and Capital Lease Obligations [Abstract] | ||
| 2020 | $ 224 | |
| 2021 | 0 | |
| 2022 | 0 | |
| 2023 | 188,000 | |
| 2024 | 0 | |
| Total Debt | $ 188,224 | $ 233,982 | 
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- Definition Amount of long-term debt and lease obligation, including portion classified as current. No definition available. 
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- Definition Principal amount of long-term debt and capital lease obligation maturing in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. No definition available. 
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- Definition Principal amount of long-term debt and capital lease obligation maturing in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. No definition available. 
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- Definition Principal amount of long-term debt and capital lease obligation maturing in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. No definition available. 
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- Definition Principal amount of long-term debt and capital lease obligation maturing in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. No definition available. 
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- Definition Principal amount of long-term debt and capital lease obligation maturing in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. No definition available. 
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- References No definition available. 
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