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Condensed Consolidated Statements of Comprehensive (Loss) Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2021	Jan. 01, 2021
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ (138,827)	$ 8,968
Unrealized (loss) gain on short term investments, net of tax	(616)	176
Foreign currency translation (loss) gain, net of tax	(325)	953
Other comprehensive (loss) income, net of tax	(941)	1,129
Total comprehensive income (loss)	$ 137,886	$ (7,839)

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