Quarterly Financial Information (Unaudited) (Tables)

12 Months Ended

Dec. 28, 2019

Quarterly Financial Information Disclosure [Abstract]

Quarterly financial information (Unaudited)

(In thousands, except per share data)	First Quarter		Second Quarter		Third Quarter		Fourth Quarter
2019
Net sales	$	611,781	$	666,394	$	608,602	$	543,839
Gross profit (2)	100,388		102,446		97,814		94,358
Consolidated net income	17,139		28,676		30,444		29,973
Net income attributable to Mueller Industries, Inc.	15,723		27,986		29,093		28,170
Basic earnings per share	0.28		0.50		0.52		0.50
Diluted earnings per share	0.28		0.50		0.52		0.50
Dividends per share	0.10		0.10		0.10		0.10
2018
Net sales	$	640,060	$	662,773	$	645,958	$	559,087
Gross profit (2)	94,390		98,953		79,002		85,133
Consolidated net income (3)	24,344		33,882		20,863		27,731
Net income attributable to Mueller Industries, Inc.	24,128		33,182		20,292		26,857
Basic earnings per share	0.42		0.58		0.36		0.47
Diluted earnings per share	0.42		0.58		0.35		0.47
Dividends per share	0.10		0.10		0.10		0.10

⁽¹⁾  The sum of quarterly amounts may not equal the annual amounts reported due to rounding. In addition, the earnings per share amounts are computed independently for each quarter, while the full year is based on the weighted average shares outstanding.

⁽²⁾  Gross profit is net sales less cost of goods sold, which excludes depreciation and amortization.

⁽³⁾ 

Includes income earned by ATCO, acquired during Q3 2018, and Die-Mold, acquired during Q1 2018.