Stockholders' Equity and Stock Compensation Plans - RSU and PSU Activity (Details) - $ / shares	12 Months Ended
	Oct. 01, 2023	Oct. 02, 2022	Oct. 03, 2021
RSUs
Number of Shares
Nonvested balance at the beginning of the period (in shares)	299,000	381,000	444,000
Granted (in shares)	105,082	77,844	117,934
Vested (in shares)	(119,000)	(147,000)	(167,000)
Forfeited (in shares)	(16,000)	(13,000)	(14,000)
Nonvested balance at the end of the period (in shares)	269,424	299,000	381,000
Weighted-Average Grant Date Fair Value
Nonvested balance at the beginning of the period (in dollars per share)	$ 111.40	$ 83.30	$ 63.93
Granted (in dollars per share)	156.33	184.61	122.02
Vested (in dollars per share)	104.05	77.47	59.64
Forfeited (in dollars per share)	140.01	109.01	77.74
Nonvested balance at the end of the period (in dollars per share)	$ 130.58	$ 111.40	$ 83.30
PSUs
Number of Shares
Nonvested balance at the beginning of the period (in shares)	272,000	318,000	355,000
Granted (in shares)	56,214	41,734	57,542
Vested (in shares)	(138,000)	(176,000)	(193,000)
Adjustment (in shares)	68,792	88,198	99,214
Forfeited (in shares)	(9,000)	0	(1,000)
Nonvested balance at the end of the period (in shares)	249,880	272,000	318,000
Weighted-Average Grant Date Fair Value
Nonvested balance at the beginning of the period (in dollars per share)	$ 109.23	$ 82.96	$ 64.83
Granted (in dollars per share)	195.50	247.16	153.03
Vested (in dollars per share)	99.85	80.17	57.40
Adjustment (in dollars per share)	99.85	80.63	57.40
Forfeited (in dollars per share)	193.69	0	74.05
Nonvested balance at the end of the period (in dollars per share)	$ 128.21	$ 109.23	$ 82.96