Leases Assets and liabilities (Details) - USD ($) $ in Thousands	Mar. 30, 2024	Dec. 31, 2023
Assets and Liabilities, Lessee [Abstract]
Operating lease assets	$ 111,408	$ 110,248
Finance lease assets	20,188	18,613
Total lease assets	131,596	128,861
Current operating lease liabilities	39,602	39,043
Non-current operating lease liabilities	72,014	71,134
Total operating lease liabilities	111,616	110,177
Current portion of finance lease liabilities	5,503	4,794
Non-current finance lease liabilities	14,682	13,544
Total finance lease liabilities	20,185	18,338
Total lease liabilities	$ 131,801	$ 128,515