Long-Term Debt - Summary of Interest Expense (Details) - 2028 Senior Notes - Convertible Debt - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 29, 2025	Jun. 30, 2024	Jun. 29, 2025	Jun. 30, 2024
Debt Instrument [Line Items]
Interest expense	$ 3,234	$ 3,234	$ 9,703	$ 9,631
Amortization of discount and issuance costs	699	680	2,105	2,040
Total interest expense	$ 3,933	$ 3,914	$ 11,808	$ 11,671