Annual report pursuant to Section 13 and 15(d)

Debt and Interest Rate Swap (Details)

v3.19.3.a.u2
Debt and Interest Rate Swap (Details) - USD ($)
$ in Thousands
12 Months Ended 26 Months Ended 32 Months Ended
May 12, 2024
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2019
Dec. 31, 2019
Nov. 03, 2017
May 12, 2017
Debt Instrument [Line Items]                
Long-term Debt, Gross               $ 425,000
Long-term Debt, Maturities, Repayments of Principal after Year Five   $ 212,000 $ 262,000   $ 212,000 $ 212,000    
Derivative, Fixed Interest Rate   4.25%     4.25% 4.25% 1.74685%  
Derivative Liability, Current   $ (37)     $ (37) $ (37)    
Derivative Asset     1,623 $ 734        
Document Period End Date   Dec. 31, 2019            
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Gain (Loss) Included in Other Comprehensive Income (Loss)   $ (1,660) $ 889 700        
Incremental Loans               $ 160,000
Debt Instrument, Payment Terms   0.25%     0.25% 0.25%    
Debt Instrument, Term   7 years            
Debt Instrument, Call Feature   1.0% soft call premium            
Repayments of Debt           $ 213,000    
Debt Instrument, Interest Rate, Effective Percentage   4.90% 4.60%   4.90% 4.90%   4.60%
Long-term Debt, Fair Value   $ 214,600 $ 268,100   $ 214,600 $ 214,600   $ 398,500
Debt Issuance Costs, Gross               6,000
Amortization of Debt Discount (Premium)   300 300 200        
Amortization of Debt Issuance Costs   900 800 600        
Debt Instrument, Unamortized Discount               (2,100)
Long-term debt   206,909 255,757   206,909 206,909    
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax   $ (1,319) 702 $ 477 (40)      
Base Rate [Member]                
Debt Instrument [Line Items]                
Debt Instrument, Interest Rate Terms   base rate            
Debt Instrument, Basis Spread on Variable Rate   1.50%            
Fed Funds Effective Rate Overnight Index Swap Rate [Member]                
Debt Instrument [Line Items]                
Debt Instrument, Interest Rate Terms   the federal funds rate, plus 0.50%            
Prime Rate [Member]                
Debt Instrument [Line Items]                
Debt Instrument, Interest Rate Terms   prime rate            
London Interbank Offered Rate (LIBOR) [Member]                
Debt Instrument [Line Items]                
Debt Instrument, Basis Spread on Variable Rate   2.50%            
London Interbank Offered Rate (LIBOR) [Member] | Maximum [Member]                
Debt Instrument [Line Items]                
Debt Instrument, Interest Rate Terms   an adjusted LIBOR rate determined on the basis of a one- three- or six-month interest period, plus 1.0%            
London Interbank Offered Rate (LIBOR) [Member] | Minimum [Member]                
Debt Instrument [Line Items]                
Debt Instrument, Interest Rate Terms   an adjusted LIBOR rate, subject to a floor of 0.75%            
London Interbank Offered Rate (LIBOR) Subject to Floor [Member]                
Debt Instrument [Line Items]                
Debt Instrument, Basis Spread on Variable Rate   2.50%            
Medium-term Notes [Member]                
Debt Instrument [Line Items]                
Long-term Debt, Gross   $ 212,000 262,000   212,000 212,000   $ 425,000
Debt Instrument, Unamortized Discount   (1,328) (1,630)   (1,328) (1,328)    
Debt Issuance Costs, Net   (3,763) (4,613)   (3,763) (3,763)    
Long-term Debt   206,909 255,757   206,909 206,909    
Long-term Debt, Current Maturities   0 0   0 0    
Long-term debt   $ 206,909 $ 255,757   $ 206,909 $ 206,909    
Forecast [Member]                
Debt Instrument [Line Items]                
Debt Instrument, Frequency of Periodic Payment quarterly installments