Customers with 10% (or greater) of Net Revenues - Additional information (Detail) - Customer Concentration Risk [Member] - Revenue [Member]	3 Months Ended		6 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Mar. 31, 2025	Mar. 31, 2024
Customer One [Member]
Percentage of concentration	10.20%	13.90%	10.50%	11.00%
Customer Two [Member]
Percentage of concentration	12.00%	12.40%
Customer Three [Member]
Percentage of concentration			13.70%	10.00%

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.