v3.25.1
Fair Value Measurements (Tables)
6 Months Ended
Mar. 31, 2025
Fair Value Disclosures [Abstract]  
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]
Financial assets (liabilities) measured at fair value on a recurring basis as of March 31, 2025 and September 30, 2024, are summarized in the following tables by the type of inputs applicable to the fair value measurements:
March 31, 2025
Total Fair ValueQuoted Prices (Level 1)Significant Unobservable Inputs (Level 3)
Marketable equity securities$62,339 $62,339 $— 
Marketable debt securities3,509 3,509 — 
Executive savings plan assets932 932 — 
Executive savings plan liabilities(803)(803)— 
Contingent consideration liability(4,146)— (4,146)
Total$61,831 $65,977 $(4,146)
September 30, 2024
Total Fair ValueQuoted Prices (Level 1)Significant Unobservable Inputs (Level 3)
Marketable equity securities$31,639 $31,639 $— 
Marketable debt securities3,364 3,364 — 
Executive savings plan assets986 986 — 
Executive savings plan liabilities(852)(852)— 
Contingent consideration liability(3,468)— (3,468)
Total$31,669 $35,137 $(3,468)
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation
The table below presents the change in fair value of liabilities measured using significant unobservable inputs (Level 3).
Contingent consideration liability
Fair value at September 30, 2024
$(3,468)
Net adjustments to fair value included in “Contingent consideration
(678)
Fair value at March 31, 2025
$(4,146)