CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 27, 2025	Dec. 28, 2024
Current assets:
Cash and cash equivalents (Note 1)	$ 814,733	$ 724,924
Short-term investments	290	976
Trade receivables, less allowances of $78,392 and $69,990 at September 27, 2025 and December 28, 2024, respectively	373,827	294,371
Inventories (Note 3)	396,871	416,273
Prepaid income taxes and income taxes receivable	11,253	11,749
Prepaid expenses and other current assets	77,509	103,716
Total current assets	1,674,483	1,552,009
Net property, plant, and equipment (Note 4)	513,965	477,068
Intangible assets, net of amortization (Note 5)	458,776	482,118
Goodwill (Note 5)	1,356,038	1,228,502
Investments	21,329	23,245
Deferred income taxes	5,712	4,899
Right of use lease assets	87,116	72,211
Other long-term assets	56,940	51,727
Total assets	4,174,359	3,891,779
Current liabilities:
Accounts payable	204,016	188,359
Accrued liabilities (Note 6)	173,786	148,276
Accrued income taxes	24,302	29,658
Current portion of long-term debt (Note 8)	16,955	67,612
Total current liabilities	419,059	433,905
Long-term debt, less current portion (Note 8)	788,821	788,502
Deferred income taxes	103,917	95,532
Accrued post-retirement benefits	33,658	29,836
Non-current lease liabilities	73,415	60,559
Other long-term liabilities	83,374	69,833
Total liabilities	1,502,244	1,478,167
Commitments and contingencies (Note 15)
Shareholders’ equity:
Common stock, par value $0.01 per share: 34,000,000 shares authorized; shares issued, September 27, 2025–26,986,928; December 28, 2024–26,758,730	264	262
Additional paid-in capital	1,091,622	1,049,079
Treasury stock, at cost: 2,088,122 and 1,937,380 shares, respectively	(338,622)	(305,351)
Accumulated other comprehensive loss	(14,388)	(146,361)
Retained earnings	1,932,601	1,815,628
Littelfuse, Inc. shareholders’ equity	2,671,477	2,413,257
Non-controlling interest	638	355
Total equity	2,672,115	2,413,612
Total liabilities and equity	$ 4,174,359	$ 3,891,779