Quarterly Financial Data (Unaudited)

12 Months Ended

Dec. 31, 2015

Quarterly Financial Information Disclosure [Abstract]

Quarterly Financial Data (Unaudited)

19. QUARTERLY FINANCIAL DATA (UNAUDITED)

The following table sets forth certain quarterly financial data. The quarterly earnings (loss) per share amounts for a year will not add to the earnings per share for that year due to weighting of shares used in calculating per share data.

	Quarter and Year Ended December 31, 2015
(In millions, except per share data)	Q1			Q2		Q3			Q4
Net sales	$	784.6		$	869.2	$	827.5		$	715.7
Gross margin		103.9			123.5		112.8			36.1
Operating income (loss)		22.1			43.1		(811.7	)		(61.4	)
Net income (loss) from continuing operations		(2.4	)		22.8		(798.2	)		(66.0	)
Consolidated net income (loss)		(8.8	)		21.9		(792.5	)		(57.7	)
Net income (loss) attributable to Axiall		(10.6	)		20.6		(769.6	)		(56.8	)
Earnings (loss) per share:
Basic	$	(0.15	)	$	0.29	$	(10.90	)	$	(0.80	)
Diluted	$	(0.15	)	$	0.29	$	(10.90	)	$	(0.80	)
	Quarter and Year Ended December 31, 2014
	Q1			Q2		Q3			Q4
Net sales	$	808.5		$	974.9	$	997.5		$	861.6
Gross margin		76.8			149.6		156.7			123.2
Operating income (loss)		3.1			68.9		75.1			19.6
Net income (loss) from continuing operations		(7.7	)		37.7		48.2			(0.2	)
Consolidated net income (loss)		(10.6	)		28.1		45.1			(12.4	)
Net income (loss) attributable to Axiall		(11.6	)		27.2		44.5			(13.8	)
Earnings (loss) per share:
Basic	$	(0.17	)	$	0.39	$	0.64		$	(0.20	)
Diluted	$	(0.17	)	$	0.38	$	0.63		$	(0.20	)