Quarterly report pursuant to Section 13 or 15(d)

Long-Term Debt and Lines of Credit - Schedule of Future Maturities of Debt and Lines of Credit (Details)

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Long-Term Debt and Lines of Credit - Schedule of Future Maturities of Debt and Lines of Credit (Details) - USD ($)
$ in Thousands
Jun. 30, 2018
Sep. 30, 2017
Debt Disclosure [Abstract]    
Due within one year $ 5,250  
Due between one and two years 10,950  
Due between two and three years 10,975  
Due between three and four years 14,825  
Due between four and five years 10,755  
Due beyond five years 124,300  
Long-term debt, net of current portion $ 177,055 $ 186,476