Net Loss Per Share - Summary of Reconciliation of Basic Weighted Average Common Shares Outstanding to Diluted Weighted Average Common Shares Outstanding (Details) - shares shares in Thousands	3 Months Ended		6 Months Ended
	Apr. 03, 2021	Mar. 28, 2020	Apr. 03, 2021	Mar. 28, 2020
Earnings Per Share [Abstract]
Weighted average common shares outstanding, used for basic computation	186,810	156,500	181,900	156,500
Weighted average number of common and dilutive potential common shares outstanding	186,810	156,500	181,900	156,500