Shareholders' Equity - Narrative (Details) - USD ($)	3 Months Ended
	Jan. 04, 2020	Dec. 29, 2018	Aug. 20, 2019	Feb. 14, 2018
2019 Stock Repurchase Program
Equity, Class of Treasury Stock [Line Items]
Authorized repurchase amount			$ 50,000,000.0
Amount repurchased (in shares)	90,667
Amount repurchased	$ 6,300,000
Average repurchase price (in dollars per share)	$ 69.82
Remaining authorized repurchase amount	$ 40,400,000
2018 Stock Repurchase Program
Equity, Class of Treasury Stock [Line Items]
Authorized repurchase amount				$ 200,000,000.0
Amount repurchased (in shares)		869,949
Amount repurchased		$ 50,100,000
Average repurchase price (in dollars per share)		$ 57.53