Annual report pursuant to Section 13 and 15(d)

Debt and Financing Lease Liabilities - Outstanding Credit Facility Amounts (Details)

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Debt and Financing Lease Liabilities - Outstanding Credit Facility Amounts (Details) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Debt Instrument [Line Items]    
Long-term debt value, carrying value $ 110,270 $ 111,997
Debt issuance costs $ 491 639
Term Loan    
Debt Instrument [Line Items]    
Stated interest rate (percent) 3.00%  
Long-term debt value, carrying value $ 57,574 62,409
Revolving Credit Facility | Line of Credit    
Debt Instrument [Line Items]    
Stated interest rate (percent) 3.75%  
Long-term debt value, carrying value $ 52,696 $ 49,588