Notes Receivable (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items]
Notes receivable	$ 18,023	$ 19,760
Less current portion	3,386	3,807
Notes receivable - non-current	14,637	15,953
Independent Contractors
Accounts, Notes, Loans and Financing Receivable [Line Items]
Notes receivable	7,358	10,335
Other Debtors [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Notes receivable	$ 10,665	$ 9,425

Amount, before allowance for credit loss, of financing receivable.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Name:	us-gaap_NotesReceivableGross
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant