QUARTERLY SUMMARY (unaudited) (Tables)

12 Months Ended

Dec. 31, 2019

Quarterly Financial Information Disclosure [Abstract]

Schedule of Quarterly Financial Information

	2019
($ in millions except per share data)	First Quarter			Second Quarter		Third Quarter		Fourth Quarter
Revenue	$	333.1		$	367.5	$	408.9	$	369.2
Operating income	$	7.9		$	6.0	$	33.3	$	18.0
Net income (loss)	$	(2.6	)	$	0.9	$	13.6	$	4.4
Net income (loss) attributable to U.S. Concrete	$	(2.7	)	$	0.7	$	13.0	$	3.9
Net income (loss) per share attributable to U.S. Concrete - basic	$	(0.16	)	$	0.04	$	0.79	$	0.24
Net income (loss) per share attributable to U.S. Concrete - diluted	$	(0.16	)	$	0.04	$	0.79	$	0.23

	2018
($ in millions except per share)	First Quarter			Second Quarter		Third Quarter		Fourth Quarter
Revenue	$	327.8		$	404.2	$	404.3	$	370.1
Operating income	$	7.6		$	30.6	$	35.0	$	16.7
Net income (loss)	$	(3.9	)	$	16.3	$	15.8	$	3.1
Net income (loss) attributable to U.S. Concrete	$	(3.9	)	$	16.3	$	15.6	$	2.0
Net income (loss) per share attributable to U.S. Concrete - basic	$	(0.23	)	$	0.99	$	0.95	$	0.12
Net income (loss) per share attributable to U.S. Concrete - diluted	$	(0.23	)	$	0.99	$	0.94	$	0.12