Quarterly report pursuant to Section 13 or 15(d)

Senior Credit Facility (Details)

v3.19.1
Senior Credit Facility (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2019
Sep. 29, 2017
Revolving Credit Facility [Member]    
Debt Instrument [Line Items]    
Line of Credit Facility Term, In Years   5
Line of Credit Facility, Current Borrowing Capacity   $ 150,000
Additional borrowing capacity of credit facility   100,000
Credit facility amount   $ 250,000
Base reference rate of credit facilities LIBOR  
Interest rate spread above LIBOR as of reporting period (in hundredths) 1.00%  
Debt Instrument, Basis Spread on Variable Rate, Minimum   0.30%
Debt Instrument, Basis Spread on Variable Rate, Maximum   0.80%
Proceeds from senior credit facility $ 47,500  
Available borrowing capacity $ 89,796  
Line of Credit Facility, Interest Rate at Period End 3.90%  
Letter of Credit [Member]    
Debt Instrument [Line Items]    
Line of Credit Facility, Capacity Available for Specific Purpose Other than for Trade Purchases   $ 30,000
Letters of Credit Outstanding, Amount $ 12,704  
Swing line loan [Member]    
Debt Instrument [Line Items]    
Line of Credit Facility, Capacity Available for Specific Purpose Other than for Trade Purchases   $ 30,000
Federal funds [Member]    
Debt Instrument [Line Items]    
Interest rate spread above LIBOR as of reporting period (in hundredths) 0.50%