Quarterly Financial Information (Unaudited)

12 Months Ended

Dec. 31, 2018

Quarterly Financial Information Disclosure [Abstract]

Quarterly Summary Information (Unaudited)

(In millions, except per share amounts)	March 31		June 30		September 30(2)		December 31(3)
2018
Net sales	$	431.5	$	485.7	$	494.9	$	520.0
Gross profit	169.5		198.7		202.2		196.3
Net income (loss)	43.4		38.6		15.9		68.9
Net income (loss) attributable to W. R. Grace & Co. shareholders	43.6		38.8		16.1		69.1
Net income (loss) per share:(1)
Basic earnings (loss) per share:	$	0.64	$	0.58	$	0.24	$	1.03
Diluted earnings (loss) per share:	0.64		0.58		0.24		1.03
Dividends declared per share	0.24		0.24		0.24		0.24

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(1) Per share results for the four quarters may differ from full-year per share results, as a separate computation of the weighted average number of shares outstanding is made for each quarter presented.

(2) Third quarter “net income (loss)” and “net income (loss) attributable to W. R. Grace & Co. shareholders” include the effects of a pre-tax charge of $70.0 million for the estimated costs of future remediation-related activities at the former vermiculite mine site in Libby, Montana.

(3) Fourth quarter “gross profit,” “net income (loss),” and “net income (loss) attributable to W. R. Grace & Co. shareholders” include the effects of the annual pension mark-to-market adjustment.

(In millions, except per share amounts)	March 31		June 30		September 30		December 31(2)
2017
Net sales	$	398.0	$	429.5	$	429.5	$	459.5
Gross profit	153.2		167.2		171.3		184.4
Net income (loss)	42.9		43.5		47.1		(123.1		)
Net income (loss) attributable to W. R. Grace & Co. shareholders	42.9		43.9		47.4		(123.0		)
Net income (loss) per share:(1)
Basic earnings (loss) per share:	$	0.63	$	0.64	$	0.70	$	(1.81	)
Diluted earnings (loss) per share:	0.63		0.64		0.70		(1.81		)
Dividends declared per share	0.21		0.21		0.21		0.21

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(1) Per share results for the four quarters may differ from full-year per share results, as a separate computation of the weighted average number of shares outstanding is made for each quarter presented.

(2) Fourth quarter “gross profit,” “net income (loss),” and “net income (loss) attributable to W. R. Grace & Co. shareholders” include the effects of the annual pension mark-to-market adjustment, as well as adjustments related to the estimated impacts of the U.S. Tax Cuts and Jobs Act of 2017.