Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

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

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Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Debt - Schedule of Debt (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Feb. 01, 2019
Debt Instrument [Line Items]
Long term debt	$ 205,272	$ 251,205
Convertible Notes
Debt Instrument [Line Items]
Long term debt	187,935	221,989
Current portion of lines of credit and notes payable
Debt Instrument [Line Items]
Long term debt	14,695	24,703
LT notes payable included in long-term liabilities
Debt Instrument [Line Items]
Long term debt	2,642	4,513
Line of Credit
Debt Instrument [Line Items]
Long term debt	13,672	15,897
Notes Payable, Other Payables
Debt Instrument [Line Items]
Long-term debt, current maturities	1,022	1,749
Long-term debt, excluding current maturities	2,642	4,513
Convertible Senior Notes Due 2025 \| Convertible Debt
Debt Instrument [Line Items]
Long term debt	119,360	156,163
5% Convertible Notes \| Convertible Debt
Debt Instrument [Line Items]
Long term debt	65,525	62,776
Notes Due February 1, 2033 \| Notes
Debt Instrument [Line Items]
Long term debt	3,050	3,050	$ 3,000
New Credit Agreement \| Line of Credit \| Revolving Credit Facility
Debt Instrument [Line Items]
Long term debt	$ 0	$ 7,057