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Stock-Based Compensation (Tables)

3 Months Ended

Dec. 31, 2024

Share-Based Payment Arrangement [Abstract]

Schedule of Stock-Based Compensation Expense

The following table shows stock-based compensation expense that is included in the consolidated results of operations (in thousands):

			Three months ended December 31,
			2024						2023
Cost of sales			$	187					$	181
Sales and marketing			1,261						1,168
Research and development			546						430
General and administrative			1,566						1,327
Stock-based compensation before income taxes			3,560						3,106
Income tax benefit			(761)						(663)
Stock-based compensation after income taxes			$	2,799					$	2,443

Schedule of Stock Option Activity

The following table summarizes our stock option activity (in thousands, except per common share amounts):

						Options Outstanding						Weighted Average Exercise Price						Weighted Average Contractual Term (in years)						Aggregate Intrinsic Value (1)
Balance on September 30, 2024						1,382						$19.01
Granted						63						31.55
Exercised						(237)						32.78
Forfeited / Canceled						(6)						27.74
Balance on December 31, 2024						1,202						$20.66						3.3						$	11,987
Exercisable on December 31, 2024						929						$18.92						2.8						$	10,845

(1) The aggregate intrinsic value represents the total pre-tax intrinsic value, based on our closing stock price of $30.23 as of December 31, 2024, which would have been received by the option holders had all option holders exercised their options as of that date.

Schedule of Valuation Assumptions

The following table shows the weighted average fair value, which was determined based upon the fair value of each option on the grant date utilizing the Black-Scholes option-pricing model and the related assumptions:

			Three months ended December 31,
			2024						2023
Weighted average per option grant date fair value			$16.22						$12.44
Assumptions used for option grants:
Risk free interest rate			4.31%						4.45% - 4.68%
Expected term			6.00 years						6.00 years
Expected volatility			48%						46%
Weighted average volatility			48%						46%
Expected dividend yield			—						—

Schedule of Nonvested Restricted Stock Units

The following table presents a summary of our non-vested restricted stock units and performance stock units as of December 31, 2024 and changes during the three months then ended (in thousands, except per common share amounts):

			RSUs												PSUs
			Number of Awards						Weighted Average Grant Date Fair Value						Number of Awards						Weighted Average Grant Date Fair Value
Nonvested on September 30, 2024			846						$	30.15					220						$	30.55
Granted			389						31.81						162						32.64
Vested			(214)						27.37						(54)						30.57
Canceled			(9)						30.46						(4)						19.78
Nonvested on December 31, 2024			1,012						$	31.38					324						$	31.71

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Tabular disclosure of cost recognized for award under share-based payment arrangement by plan. Includes, but is not limited to, related tax benefit.

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Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions.

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