Stock Repurchase and Dividends - Schedule of shares repurchased (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Sep. 29, 2019	Sep. 30, 2018
Equity, Class of Treasury Stock [Line Items]
Shares Repurchased (in shares)	1,562,521
Average Price Paid per Share (USD per share)	$ 64.00
Total Cost (in thousands)	$ 100,000
2018 Stock Repurchase Program
Equity, Class of Treasury Stock [Line Items]
Shares Repurchased (in shares)	430,559	1,491,569
Average Price Paid per Share (USD per share)	$ 58.06	$ 50.28
Total Cost (in thousands)	$ 25,000	$ 75,000
2019 Stock Repurchase Program
Equity, Class of Treasury Stock [Line Items]
Shares Repurchased (in shares)	1,131,962
Average Price Paid per Share (USD per share)	$ 66.26
Total Cost (in thousands)	$ 75,000