CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 28, 2020	Dec. 28, 2019
Current assets:
Cash and cash equivalents	$ 154,283	$ 97,944
Accounts receivable, less allowance for doubtful accounts of $1,613 in 2020 and $770 in 2019	308,836	269,943
Inventories	270,119	292,107
Other current assets	40,888	33,778
Total current assets	774,126	693,772
Property, plant, and equipment, net	366,828	363,128
Operating lease right-of-use assets	18,632	26,922
Goodwill, net	160,820	153,276
Intangible assets, net	56,582	60,082
Investments in unconsolidated affiliates	44,683	48,363
Other assets	24,268	25,397
Total assets	1,445,939	1,370,940
Current liabilities:
Current portion of debt	7,591	7,530
Accounts payable	94,251	85,644
Accrued wages and other employee costs	33,103	41,673
Current portion of operating lease liabilities	5,047	5,250
Other current liabilities	89,907	94,190
Total current liabilities	229,899	234,287
Long-term debt, less current portion	468,234	378,724
Pension liabilities	6,756	9,126
Postretirement benefits other than pensions	12,437	13,082
Environmental reserves	19,875	19,972
Deferred income taxes	19,513	21,094
Noncurrent operating lease liabilities	14,124	22,388
Other noncurrent liabilities	9,801	10,131
Total liabilities	780,639	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 56,752,790 in 2020 and 56,949,246 in 2019	802	802
Additional paid-in capital	280,197	278,609
Retained earnings	929,810	903,070
Accumulated other comprehensive loss	(90,165)	(68,770)
Treasury common stock, at cost	(474,957)	(470,243)
Total Mueller Industries, Inc. stockholders' equity	645,687	643,468
Noncontrolling interests	19,613	18,668
Total equity	665,300	662,136
Commitments and contingencies	0	0
Total liabilities and equity	$ 1,445,939	$ 1,370,940