Quarterly report pursuant to Section 13 or 15(d)

Debt (Details)

v3.8.0.1
Debt (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
May 12, 2024
Sep. 30, 2017
Sep. 30, 2017
May 12, 2017
Dec. 31, 2016
Debt Instrument [Line Items]          
Debt Instrument, Term     7 years    
Debt Instrument, Call Feature     1.0% soft call premium    
Repayments of Debt     $ 50,000    
Debt Issuance Costs, Gross       $ 6,000  
Amortization of Debt Discount (Premium)   $ 80 120    
Amortization of Debt Issuance Costs   200 300    
Unsecured Long-term Debt, Noncurrent   $ 367,322 $ 367,322   $ 0
Long-term Debt, Description     160.0    
Debt Instrument, Interest Rate, Effective Percentage   3.70% 3.70%    
Long-term Debt, Fair Value   $ 356,900 $ 356,900 398,500  
Debt Instrument, Interest Rate, Basis for Effective Rate     0.046    
Debt Instrument, Unamortized Discount       (2,100)  
Base Rate [Member]          
Debt Instrument [Line Items]          
Debt Instrument, Interest Rate Terms     a base rate    
Base Rate [Member] | Applicable Margin - 1.5% [Member]          
Debt Instrument [Line Items]          
Debt Instrument, Interest Rate Terms     0.015    
Federal Funds Effective 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] | Applicable Margin - 2.5% [Member]          
Debt Instrument [Line Items]          
Debt Instrument, Interest Rate Terms     0.025    
London Interbank Offered Rate (LIBOR) [Member] | Minimum [Member]          
Debt Instrument [Line Items]          
Debt Instrument, Interest Rate Terms     adjusted LIBOR rate, subject to a floor of 0.75%    
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%    
Medium-term Notes [Member]          
Debt Instrument [Line Items]          
Long-term Debt, Gross   375,000 $ 375,000 $ 425,000  
Debt Issuance Costs, Net   (5,673) (5,673)    
Long-term Debt   367,322 367,322    
Long-term Debt, Current Maturities   0 0    
Unsecured Long-term Debt, Noncurrent   367,322 367,322    
Debt Instrument, Unamortized Discount   $ (2,005) $ (2,005)    
Scenario, Forecast [Member]          
Debt Instrument [Line Items]          
Debt Instrument, Frequency of Periodic Payment quarterly installments        
Debt Instrument, Payment Terms 0.0025