CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 27, 2020	Dec. 28, 2019
Current assets:
Cash and cash equivalents	$ 123,610	$ 97,944
Accounts receivable, less allowance for doubtful accounts of $2,205 in 2020 and $770 in 2019	273,710	269,943
Inventories	244,414	292,107
Other current assets	28,957	33,778
Total current assets	670,691	693,772
Property, plant, and equipment, net	362,785	363,128
Operating lease right-of-use assets	17,172	26,922
Goodwill, net	153,335	153,276
Intangible assets, net	63,004	60,082
Investments in unconsolidated affiliates	32,443	48,363
Other assets	23,960	25,397
Total assets	1,323,390	1,370,940
Current liabilities:
Current portion of debt	6,543	7,530
Accounts payable	93,579	85,644
Accrued wages and other employee costs	40,409	41,673
Current portion of operating lease liabilities	4,623	5,250
Other current liabilities	84,110	94,190
Total current liabilities	229,264	234,287
Long-term debt, less current portion	323,114	378,724
Pension liabilities	5,819	9,126
Postretirement benefits other than pensions	12,179	13,082
Environmental reserves	19,776	19,972
Deferred income taxes	19,635	21,094
Noncurrent operating lease liabilities	13,009	22,388
Other noncurrent liabilities	10,390	10,131
Total liabilities	633,186	708,804
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 56,791,916 in 2020 and 56,949,246 in 2019	802	802
Additional paid-in capital	281,856	278,609
Retained earnings	951,992	903,070
Accumulated other comprehensive loss	(89,799)	(68,770)
Treasury common stock, at cost	(474,170)	(470,243)
Total Mueller Industries, Inc. stockholders' equity	670,681	643,468
Noncontrolling interests	19,523	18,668
Total equity	690,204	662,136
Commitments and contingencies	0	0
Total liabilities and equity	$ 1,323,390	$ 1,370,940