Condensed Consolidated Statements of Comprehensive Income (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Net sales	$ 493.6	$ 457.4
Cost of sales	271.1	259.1
Gross profit	222.5	198.3
Selling, general and administrative expenses	83.2	87.9
Engineering - research and development	24.5	29.0
Operating income	114.8	81.4
Interest income	0.2	0.2
Interest expense	(35.3)	(34.1)
Other expense, net	(0.4)	(3.1)
Income before income taxes	79.3	44.4
Income tax expense	(27.2)	(16.9)
Net income	52.1	27.5
Basic earnings per share attributable to common stockholders	$ 0.29	$ 0.15
Diluted earnings per share attributable to common stockholders	$ 0.28	$ 0.15
Dividends per common share	$ 0.12	$ 0.06
Comprehensive income	$ 54.2	$ 24.9