CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands		Sep. 30, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents		$ 979,790	$ 461,018
Short-term investments		124,680	217,863
Accounts receivable, less allowance for doubtful accounts of $2,918 in 2023 and $2,687 in 2022		409,187	380,352
Inventories		391,740	448,919
Other current assets		31,373	26,501
Total current assets		1,936,770	1,534,653
Property, plant, and equipment, net		376,678	379,950
Operating lease right-of-use assets		33,898	22,892
Goodwill, net		150,921	157,588
Intangible assets, net		46,798	54,785
Investments in unconsolidated affiliates		97,025	72,364
Other assets		21,651	20,167
Total assets		2,663,741	2,242,399
Current liabilities:
Current portion of debt		556	811
Accounts payable		141,930	128,000
Accrued wages and other employee costs		49,065	61,915
Current portion of operating lease liabilities		7,431	4,942
Other current liabilities		123,523	152,627
Total current liabilities		322,505	348,295
Long-term debt, less current portion		1,301	1,218
Pension liabilities		3,797	4,078
Postretirement benefits other than pensions		9,131	8,977
Environmental reserves		15,420	16,380
Deferred income taxes		18,502	16,258
Noncurrent operating lease liabilities		25,793	16,880
Other noncurrent liabilities		16,063	16,349
Total liabilities		412,512	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 250,000,000 in 2023 and 100,000,000 in 2022; issued 160,366,008; outstanding 113,528,010 in 2023 and 114,003,234 in 2022 (1)	[1]	802	802
Additional paid-in capital		313,647	297,270
Retained earnings		2,492,157	2,059,796
Accumulated other comprehensive loss		(55,061)	(64,175)
Treasury common stock, at cost		(530,304)	(502,779)
Total Mueller Industries, Inc. stockholders' equity		2,221,241	1,790,914
Noncontrolling interests		29,988	23,050
Total equity		2,251,229	1,813,964
Commitments and contingencies		0	0
Total liabilities and equity		$ 2,663,741	$ 2,242,399

[1] Adjusted retroactively to reflect the two-for-one stock split that occurred on October 20, 2023. Refer to Note 2 - Earnings per Common Share for additional information.