CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Apr. 01, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 611,399	$ 461,018
Short-term investments	170,997	217,863
Accounts receivable, less allowance for doubtful accounts of $2,972 in 2023 and $2,687 in 2022	503,369	380,352
Inventories	452,826	448,919
Other current assets	28,420	26,501
Total current assets	1,767,011	1,534,653
Property, plant, and equipment, net	377,324	379,950
Operating lease right-of-use assets	29,897	22,892
Goodwill, net	158,172	157,588
Intangible assets, net	53,859	54,785
Investments in unconsolidated affiliates	72,395	72,364
Other assets	20,963	20,167
Total assets	2,479,621	2,242,399
Current liabilities:
Current portion of debt	1,108	811
Accounts payable	179,244	128,000
Accrued wages and other employee costs	36,689	61,915
Current portion of operating lease liabilities	6,249	4,942
Other current liabilities	183,455	152,627
Total current liabilities	406,745	348,295
Long-term debt, less current portion	1,251	1,218
Pension liabilities	2,115	4,078
Postretirement benefits other than pensions	9,145	8,977
Environmental reserves	16,060	16,380
Deferred income taxes	17,561	16,258
Noncurrent operating lease liabilities	22,773	16,880
Other noncurrent liabilities	16,502	16,349
Total liabilities	492,152	428,435
Mueller Industries, Inc. stockholders' equity:
Preferred stock - $1.00 par value; shares authorized 5,000,000; none outstanding	0	0
Common stock - $.01 par value; shares authorized 100,000,000; issued 80,183,004; outstanding 56,990,798 in 2023 and 57,001,617 in 2022	802	802
Additional paid-in capital	303,133	297,270
Retained earnings	2,215,939	2,059,796
Accumulated other comprehensive loss	(51,951)	(64,175)
Treasury common stock, at cost	(505,616)	(502,779)
Total Mueller Industries, Inc. stockholders' equity	1,962,307	1,790,914
Noncontrolling interests	25,162	23,050
Total equity	1,987,469	1,813,964
Commitments and contingencies	0	0
Total liabilities and equity	$ 2,479,621	$ 2,242,399