CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Millions, except Share data in Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS
Net sales	$ 934.6	$ 909.5
Cost of products sold	660.8	566.7
Gross profit	273.8	342.8
Selling, general and administrative expenses	180.0	177.1
Restructuring and other severance costs	7.1	14.2
Operating income	86.7	151.5
Other expenses, net:
Interest expense, net	(29.0)	(20.5)
Loss on early extinguishment/modification of debt	(17.6)	(9.7)
Foreign exchange loss on financing activities, net	(15.3)	(1.0)
Other, net	0.1	0
Other expenses, net	(61.8)	(31.2)
Income before taxes	24.9	120.3
Income tax provision	8.0	30.6
Net income	16.9	89.7
Net loss (income) attributable to noncontrolling interest	2.0	(13.9)
Net income attributable to Rockwood Holdings, Inc. shareholders	$ 18.9	$ 75.8
Basic earnings per share attributable to Rockwood Holdings, Inc. shareholders (in dollars per share)	$ 0.24	$ 0.98
Diluted earnings per share attributable to Rockwood Holdings, Inc. shareholders (in dollars per share)	$ 0.24	$ 0.94
Dividends declared per share of common stock (in dollars per share)	$ 0.40	$ 0
Weighted average number of basic shares outstanding (in shares)	78,530	77,384
Weighted average number of diluted shares outstanding (in shares)	80,088	80,315