Condensed Consolidated Balance Sheets - USD ($) $ in Millions	Sep. 30, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 45.7	$ 51.8
Accounts receivable, net	254.4	234.0
Inventories	315.1	307.2
Prepaid expenses and other current assets	25.9	40.8
Total current assets	641.1	633.8
Property, plant and equipment	2,341.2	2,099.4
Less accumulated depreciation	(751.5)	(673.8)
Property, plant and equipment, net	1,589.7	1,425.6
Goodwill and other intangible assets	73.9	58.9
Investments in affiliated companies	48.3	30.4
Other assets	37.6	38.7
Total assets	2,390.6	2,187.4
Current liabilities:
Current portions of capital lease and term loan	4.7
Accounts payable	149.3	148.9
Accrued liabilities	122.6	143.7
Total current liabilities	276.6	292.6
Commitments and contingencies (see Note 11)
Long-term debt	670.2	576.5
Other non-current liabilities	184.4	138.7
Total liabilities	1,131.2	1,007.8
Stockholders' equity:
Common stock, $0.01 par value, 200.0 shares authorized, 106.6 shares and 106.0 shares issued at September 30, 2016 and December 31, 2015	1.1	1.1
Additional paid-in capital	735.0	715.8
Retained earnings	1,205.2	1,044.4
Accumulated other comprehensive loss	(132.8)	(123.9)
Total stockholders' equity including treasury stock value	1,808.5	1,637.4
Less – Treasury stock, at cost, 14.7 shares at September 30, 2016, and 12.5 shares at December 31, 2015	(549.1)	(457.8)
Total stockholders' equity	1,259.4	1,179.6
Total liabilities and stockholders' equity	$ 2,390.6	$ 2,187.4