Income Taxes - Summary of Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Mar. 31, 2021	Mar. 28, 2020	Mar. 31, 2021	Mar. 28, 2020
Income Tax Disclosure [Abstract]
Income before income taxes	$ 86,357	$ 15,778	$ 163,764	$ 34,809
Provision (benefit) for income taxes	$ (22,905)	$ 8,622	$ 30,987	$ (7,802)
Effective income tax rate	(27.00%)	55.00%	19.00%	(22.00%)

Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.

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+ Details

- Definition

Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

+ References + Details