Earnings Per Share - Summary of computation of basic and diluted EPS (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 29, 2024	Mar. 31, 2023
Numerator:
Net loss attributable to Shimmick Corporation	$ (33,333)	$ (9,337)
Numerator for basic and diluted EPS	$ (33,333)	$ (9,337)
Denominator:
Denominator for basic EPS - weighted average shares	25,560	21,909
Effect of dilutive securities:
Employee stock options	0	0
Restricted stock units	0	0
Dilutive potential common shares	0	0
Denominator for diluted EPS - adjusted weighted average shares and assumed conversions	25,560	21,909
Basic EPS:
Basic earnings per common share	$ (1.3)	$ (0.43)
Diluted EPS:
Diluted earnings per common share	$ (1.3)	$ (0.43)