v3.26.1
Earnings Per Share - Summary of Basic and Diluted Earnings Per Share (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 9 Months Ended
Apr. 01, 2026
Jun. 27, 2026
Jun. 28, 2025
Jun. 27, 2026
Jun. 28, 2025
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]          
Net income   $ 185,255 $ 36,455 $ 245,312 $ 91,223
Weighted-average shares outstanding (1)   34,237,303 31,556,312 32,547,949 31,899,623
Weighted average diluted securities, warrants   105,724 214,028 122,009 231,895
Weighted-average shares and dilutive potential common shares   35,150,916 32,581,820 33,464,047 33,023,743
Basic earnings per share (in dollars per share)   $ 5.41 $ 1.16 $ 7.54 $ 2.86
Diluted earnings per share (in dollars per share)   $ 5.27 $ 1.12 $ 7.33 $ 2.76
Micro Bird Holdings Inc.          
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]          
Number of Micro stock for each share of Blue Bird converted 1        
Restricted Stock          
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]          
Weighted-average dilutive securities   180,285 471,039 226,835 535,117
Options          
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]          
Weighted-average dilutive securities   627,604 340,441 567,254 357,108