Lines of Credit and Long-Term Debt - Components of Long-Term Debt (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Long-term debt	$ 183,151	$ 171,882
Less current portion	402	360
Long-term debt, less current portion	182,749	171,522
Convertible debt
Debt Instrument [Line Items]
Long-term debt	179,882	168,147
Notes payable
Debt Instrument [Line Items]
Long-term debt	3,217	3,655
Other
Debt Instrument [Line Items]
Long-term debt	$ 52	$ 80

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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