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Notes Receivable (Details) - USD ($) $ in Thousands | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Notes receivable | $ 24,816 | $ 29,958
Less current portion | 5,695 | 7,563
Notes receivable - non-current | 19,121 | 22,395
Independent Contractors |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Notes receivable | 15,011 | 18,660
Other Debtors [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Notes receivable | $ 9,805 | $ 11,298

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