Condensed Consolidated Balance Sheets - USD ($) $ in Millions	Sep. 30, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents	$ 43.2	$ 70.9
Accounts receivable, net	257.6	233.5
Inventories	326.2	290.1
Prepaid expenses and other current assets	100.5	87.2
Total current assets	727.5	681.7
Property, plant and equipment	2,056.0	1,868.7
Less accumulated depreciation	(662.8)	(630.5)
Property, plant and equipment, net	1,393.2	1,238.2
Goodwill and other intangible assets	59.2	59.8
Investments in affiliated companies	33.1	34.2
Other assets	27.7	22.5
Total assets	2,240.7	2,036.4
Current liabilities:
Short-term borrowings		1.3
Accounts payable	134.2	175.0
Accrued liabilities	143.3	134.3
Total current liabilities	$ 277.5	$ 310.6
Commitments and contingencies (see Note 12)
Long-term debt	$ 596.4	$ 415.0
Other non-current liabilities	171.5	160.9
Total liabilities	1,045.4	886.5
Stockholders' equity:
Common stock, $0.01 par value, 200.0 shares authorized, 106.0 shares and 104.8 shares issued at September 30, 2015 and December 31, 2014	1.1	1.0
Additional paid-in capital	712.9	678.5
Retained earnings	999.9	845.5
Accumulated other comprehensive loss	(107.0)	(69.7)
Total stockholders' equity including treasury stock value	1,606.9	1,455.3
Less – Treasury stock, at cost, 11.5 shares at September 30, 2015, and 9.3 shares at December 31, 2014	(411.6)	(305.4)
Total stockholders' equity	1,195.3	1,149.9
Total liabilities and stockholders' equity	$ 2,240.7	$ 2,036.4