Shareholders' Deficit - Stock Award Activity (Details) shares in Thousands	12 Months Ended
	Dec. 28, 2024 $ / shares shares
Time- Based Stock Awards
Stock Awards
Outstanding at beginning of period (in shares) | shares	397
Granted (in shares) | shares	674
Vested (in shares) | shares	(181)
Canceled/Forfeited (in shares) | shares	(77)
Outstanding at end of period (in shares) | shares	813
Weighted-Average Grant Date Fair Value
Outstanding at beginning of period (in dollars per share) | $ / shares	$ 37.38
Granted (in dollars per share) | $ / shares	13.70
Vested (in dollars per share) | $ / shares	39.62
Canceled/Forfeited (in dollars per share) | $ / shares	23.05
Outstanding at end of period (in dollars per share) | $ / shares	$ 18.60
Performance- Based Stock Awards
Stock Awards
Outstanding at beginning of period (in shares) | shares	699
Granted (in shares) | shares	211
Vested (in shares) | shares	(45)
Canceled/Forfeited (in shares) | shares	(88)
Outstanding at end of period (in shares) | shares	777
Weighted-Average Grant Date Fair Value
Outstanding at beginning of period (in dollars per share) | $ / shares	$ 51.74
Granted (in dollars per share) | $ / shares	13.53
Vested (in dollars per share) | $ / shares	127.50
Canceled/Forfeited (in dollars per share) | $ / shares	99.19
Outstanding at end of period (in dollars per share) | $ / shares	$ 31.74