Leases - ROU assets and lease liabilities (Detail) - USD ($) $ in Thousands	Dec. 30, 2023	Dec. 31, 2022
Right-of-use assets
Operating lease assets	$ 35,559	$ 43,768
Finance lease assets	$ 2,680	$ 1,424
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Property, Plant and Equipment, Net	Property, Plant and Equipment, Net
Current
Operating lease liabilities	$ 9,113	$ 8,866
Finance lease liabilities	$ 1,257	$ 935
Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	Accrued Liabilities and Other Liabilities	Accrued Liabilities and Other Liabilities
Non-current
Operating lease liabilities	$ 36,161	$ 45,274
Finance lease liabilities	$ 1,451	$ 524
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Other Liabilities, Noncurrent	Other Liabilities, Noncurrent