Net Loss per Share - Narrative (Details) - $ / shares shares in Millions	3 Months Ended	6 Months Ended
	Mar. 30, 2024	Mar. 30, 2024
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Average share price (in dollars per share)	$ 43.81	$ 43.83
RSUs
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of dilutive earnings per share (in shares)	7.3	7.1
Warrant Units
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of dilutive earnings per share (in shares)	0.5	0.5