Condensed Consolidated Balance Sheets (USD $) In Millions, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Current assets:
Cash and cash equivalents	$ 50.0	$ 65.5
Accounts receivable, net	280.9	232.4
Inventories	283.9	265.3
Prepaid expenses and other current assets	86.9	93.2
Total current assets	701.7	656.4
Property, plant and equipment	1,701.8	1,661.2
Less accumulated depreciation	(610.5)	(593.8)
Property, plant and equipment, net	1,091.3	1,067.4
Goodwill and intangible assets	61.1	61.0
Investments in affiliated companies	22.1	23.3
Deferred tax assets	10.0	10.3
Other assets	18.5	17.7
Total assets	1,904.7	1,836.1
Current liabilities:
Short-term borrowings	2.8	3.0
Accounts payable	131.8	135.9
Accrued liabilities	129.3	129.8
Total current liabilities	263.9	268.7
Long-term debt	352.0	292.0
Other non-current liabilities	123.8	115.0
Total liabilities	739.7	675.7
Stockholders' equity:
Common stock, $0.01 par value, 200.0 shares authorized, 104.5 and 104.0 shares issued at March 31, 2014 and December 31, 2013, respectively	1.0	1.0
Additional paid-in capital	663.7	642.3
Retained earnings	686.2	636.1
Accumulated other comprehensive income	9.8	10.7
Total stockholders' equity including treasury stock value	1,360.7	1,290.1
Less - Treasury stock, at cost, 6.6 shares at March 31, 2014 and 5.1 shares at December 31, 2013	(195.7)	(129.7)
Total stockholders' equity	1,165.0	1,160.4
Total liabilities and stockholders' equity	$ 1,904.7	$ 1,836.1