Earnings Per Share - Computation of Basic and Diluted Earnings Per Common Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended	6 Months Ended
Jun. 29, 2025	Jun. 30, 2024	Jun. 29, 2025	Jun. 30, 2024
Earnings Per Share Basic [Line Items]
Net loss	$ (24,540)	$ (10,004)	$ (41,790)	$ (18,290)
Weighted-average shares of common stock outstanding:
Basic	22,157	21,956	22,090	21,894
Dilutive effect of common stock equivalents arising from share option and nonvested share awards	0	0	0	0
Diluted	22,157	21,956	22,090	21,894
Basic loss per share	$ (1.11)	$ (0.46)	$ (1.89)	$ (0.84)
Diluted loss per share	$ (1.11)	$ (0.46)	$ (1.89)	$ (0.84)
Employee Stock Option
Weighted-average shares of common stock outstanding:
Antidilutive shares/unit awards excluded from diluted calculation	814	430	717	358
Nonvested Share Awards [Member]
Weighted-average shares of common stock outstanding:
Antidilutive shares/unit awards excluded from diluted calculation	452	656	534	494

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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