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Long-Term Debt - Scheduled Maturities of Long-Term Debt (Details) - USD ($)
$ in Thousands
Sep. 30, 2018
Oct. 01, 2017
Debt Disclosure [Abstract]    
2019 $ 12,599  
2020 12,585  
2021 12,500  
2022 12,500  
2023 227,127  
Total long-term debt $ 277,311 $ 356,871