Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements

Fair Value Measurements
6 Months Ended
Mar. 31, 2021
Fair Value Disclosures [Abstract]  
Fair Value Measurements Fair Value Measurements
The following table presents the Company’s assets and liabilities measured at fair value on a recurring basis as of March 31, 2021 and September 30, 2020 under ASC 820 (in thousands):
March 31, 2021 September 30, 2020
Level 2 Level 2
Commodity swaps $ 1,255  $ — 
Commodity swaps $ —  $ 503 
Interest rate swaps 1,089  1,708 
Derivative liabilities included in Level 2 include commodity and interest rate swap contracts. The fair values of the Company’s Level 2 derivative liabilities are estimated using an analysis of the expected cash flow of the contract in combination with marketable observable inputs, including forward and spot prices for commodity swaps and interest rate curves for interest rate swaps.