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Fair Value Measurements (Tables)
9 Months Ended
Jun. 30, 2022
Fair Value Disclosures [Abstract]  
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]
June 30, 2022
Total Fair ValueQuoted Prices (Level 1)Significant Unobservable Inputs (Level 3)
Executive savings plan assets$796 $796 $— 
Equity securities 1,052 1,052 — 
Executive savings plan liabilities(610)(610)— 
Contingent consideration liability(4,287)— (4,287)
Total$(3,049)$1,238 $(4,287)

September 30, 2021
Total Fair ValueQuoted Prices (Level 1)Significant Unobservable Inputs (Level 3)
Executive savings plan assets$937 $937 $— 
Executive savings plan liabilities(806)(806)— 
Contingent consideration liability(4,181)— (4,181)
Total$(4,050)$131 $(4,181)
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]
Contingent Consideration Agreements
Fair value at September 30, 2021$(4,181)
Net adjustments to fair value(106)
Fair value at June 30, 2022$(4,287)