Annual report pursuant to Section 13 and 15(d)

SELECTED FINANCIAL STATEMENT CAPTIONS - LIABILITIES (Details 1)

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SELECTED FINANCIAL STATEMENT CAPTIONS - LIABILITIES (Details 1) - USD ($)
$ in Thousands
Dec. 31, 2019
Sep. 30, 2019
Dec. 31, 2018
Other Long Term Liabilities [Line Items]      
Other long-term liabilities $ 33,750 $ 34,556 $ 36,222
Other Long-Term Liabilities [Member]      
Other Long Term Liabilities [Line Items]      
Other long-term liabilities 8    
Unearned Revenue [Member]      
Other Long Term Liabilities [Line Items]      
Other long-term liabilities 10,500   10,000
Trade Discount [Member]      
Other Long Term Liabilities [Line Items]      
Other long-term liabilities $ 23,242   $ 26,222