Stockholders' Equity and Stock Compensation Plans - RSU and PSU Activity (Details) - $ / shares	12 Months Ended
	Oct. 02, 2022	Oct. 03, 2021	Sep. 27, 2020
RSUs
Number of Shares
Nonvested balance at the beginning of the period (in shares)	381,000	444,000	470,000
Granted (in shares)	77,844	117,934	167,525
Vested (in shares)	(147,000)	(167,000)	(178,000)
Forfeited (in shares)	(13,000)	(14,000)	(16,000)
Nonvested balance at the end of the period (in shares)	299,055	381,000	444,000
Weighted-Average Grant Date Fair Value
Nonvested balance at the beginning of the period (in dollars per share)	$ 83.30	$ 63.93	$ 50.42
Granted (in dollars per share)	184.61	122.02	83.92
Vested (in dollars per share)	77.47	59.64	46.87
Forfeited (in dollars per share)	109.01	77.74	65.43
Nonvested balance at the end of the period (in dollars per share)	$ 111.40	$ 83.30	$ 63.93
PSUs
Number of Shares
Nonvested balance at the beginning of the period (in shares)	318,000	355,000	384,000
Granted (in shares)	41,734	57,542	74,011
Vested (in shares)	(176,000)	(193,000)	(162,000)
Adjustment (in shares)	88,198	99,214	63,643
Forfeited (in shares)	0	(1,000)	(5,000)
Nonvested balance at the end of the period (in shares)	272,000	318,000	355,000
Weighted-Average Grant Date Fair Value
Nonvested balance at the beginning of the period (in dollars per share)	$ 82.96	$ 64.83	$ 53.67
Granted (in dollars per share)	247.16	153.03	99.85
Vested (in dollars per share)	80.17	57.40	47.28
Adjustment (in dollars per share)	80.63	57.40	48.36
Forfeited (in dollars per share)	0	74.05	83.98
Nonvested balance at the end of the period (in dollars per share)	$ 109.23	$ 82.96	$ 64.83