Consolidated Balance Sheets - USD ($) $ in Millions	Mar. 31, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 162.3	$ 184.2
Accounts receivable, net of allowance for doubtful accounts and customer deductions of $10.0 million and $10.3 million as of March 31, 2016 and December 31, 2015, respectively	631.4	636.5
Inventories	692.5	676.8
Prepaid expenses and other current assets	42.7	28.8
Federal and state income taxes receivable	0.0	28.2
Total current assets	1,528.9	1,554.5
Property, plant, and equipment, net	2,817.9	2,832.1
Goodwill	544.0	544.0
Intangible assets, net	265.1	270.8
Other long-term assets	71.4	70.9
Total assets	5,227.3	5,272.3
Current liabilities:
Current maturities of long-term debt	6.5	6.5
Capital lease obligations	1.2	1.2
Accounts payable	309.0	294.2
Dividends payable	52.1	53.4
Federal and state income taxes payable	13.3	0.0
Accrued interest	18.8	13.1
Accrued liabilities	144.4	193.5
Total current liabilities	545.3	561.9
Long-term liabilities:
Long-term debt	2,289.3	2,290.4
Capital lease obligations	21.3	21.6
Deferred income taxes	357.2	347.0
Compensation and benefits	363.0	358.6
Other long-term liabilities	60.4	59.5
Total long-term liabilities	$ 3,091.2	$ 3,077.1
Commitments and contingent liabilities
Stockholders' equity:
Common stock, par value $0.01 per share, 300.0 million shares authorized, 94.2 million and 96.1 million shares issued as of March 31, 2016 and December 31, 2015, respectively	$ 0.9	$ 1.0
Additional paid in capital	432.8	439.9
Retained earnings	1,286.5	1,317.3
Accumulated other comprehensive loss	(122.4)	(124.9)
Common stock held in treasury, at cost, 0.1 million shares as of March 31, 2016	(7.0)	0.0
Total stockholders' equity	1,590.8	1,633.3
Total liabilities and stockholders' equity	$ 5,227.3	$ 5,272.3