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Long-Term Debt - Amount of Long-Term Debt (Details) - USD ($)
$ in Thousands
Dec. 31, 2016
Jul. 02, 2016
Debt Instrument [Line Items]    
Borrowings under A/R Line $ 19,548 $ 23,548
Long-term debt including current maturities 216,548 231,148
Less current maturities (22,000) 0
Total long-term debt 194,548 231,148
Unsecured Debt    
Debt Instrument [Line Items]    
Borrowings under Unsecured Revolver 97,000 107,600
Senior Notes    
Debt Instrument [Line Items]    
Borrowings under Fixed Rate Notes $ 100,000 $ 100,000