Fair Value Measurements (Tables)

6 Months Ended

Mar. 28, 2020

Fair Value Disclosures [Abstract]

Fair Value, by Balance Sheet Grouping

Our significant financial assets and liabilities measured at fair value on a recurring basis as of March 28, 2020 and September 30, 2019 were as follows:

(in thousands)	March 28, 2020
	Level 1		Level 2		Level 3		Total
Financial assets:
Cash equivalents	$	616,556	$	—	$	—	$	616,556
Marketable securities:
Commercial paper	—		1,482		—		1,482
Corporate notes/bonds	55,459		—		—		55,459
Forward contracts	—		2,708		—		2,708
	$	672,015	$	4,190	$	—	$	676,205
Financial liabilities:
Forward contracts	—		4,074		—		4,074
	$	—	$	4,074	$	—	$	4,074

(in thousands)	September 30, 2019
	Level 1		Level 2		Level 3		Total
Financial assets:
Cash equivalents	$	108,020	$	—	$	—	$	108,020
Marketable securities:
Commercial paper	—		999		—		999
Corporate notes/bonds	56,436		—		—		56,436
Forward contracts	—		3,064		—		3,064
	$	164,456	$	4,063	$	—	$	168,519
Financial liabilities:
Forward contracts	—		2,771		—		2,771
	$	—	$	2,771	$	—	$	2,771