Annual report pursuant to Section 13 and 15(d)

Fair Value Measurements (Details)

v3.20.2
Fair Value Measurements (Details) - Fair Value, Inputs, Level 2 - Fair Value, Recurring - USD ($)
$ in Thousands
Sep. 30, 2020
Sep. 30, 2019
Commodity swaps    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative Liability $ 503 $ 0
Interest rate swaps    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative Liability $ 1,708 $ 311