Annual report pursuant to Section 13 and 15(d)

Income Taxes - Reconciliation of the Statutory Federal Income Tax Rate to the Company's Effective Income Tax Rate (Details)

v3.19.3
Income Taxes - Reconciliation of the Statutory Federal Income Tax Rate to the Company's Effective Income Tax Rate (Details)
12 Months Ended
Sep. 28, 2019
Sep. 29, 2018
Sep. 30, 2017
Income Tax Disclosure [Abstract]      
Statutory federal income tax rate 21.00% 24.50% 35.00%
State income taxes, net of federal benefit 4.30% 0.90% 2.40%
Other permanent differences 0.70% (0.10%) 0.30%
Adjustment of prior year accruals (0.60%) 0.00% (0.30%)
Credits (0.90%) (0.80%) (0.60%)
Rate change - Tax reform 0.00% (16.90%) 0.00%
Stock based compensation (1.60%) (5.40%) 0.00%
Other (0.60%) 0.40% 0.10%
Effective income tax rate 22.30% 2.60% 36.90%