CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Operating Activities
Net income	$ 105.7	$ 178.6	$ 149.6
Adjustments to reconcile net income to net cash and cash equivalents provided by (used for) operating activities:
Earnings of non-consolidated affiliates	(1.7)	(2.8)	(3.0)
Gain on disposition of non-consolidated affiliate	0	(6.5)	0
Gains on disposition of property, plant and equipment	(1.1)	(0.4)	(2.1)
Stock-based compensation	5.1	8.8	6.2
Depreciation and amortization	139.1	135.3	110.9
Deferred taxes	31.0	12.4	42.5
Write-off of equipment and facility included in restructuring charges	3.3	0	0
Qualified pension plan contributions	(0.8)	(1.0)	(0.9)
Qualified pension plan income	(28.5)	(24.1)	(24.8)
Change in assets and liabilities:
Receivables	25.8	18.9	1.2
Income taxes receivable/payable	(27.8)	0.4	0.1
Inventories	(23.6)	8.6	17.9
Other current assets	1.7	0.7	(0.1)
Accounts payable and accrued liabilities	(38.5)	1.0	(0.7)
Other assets	5.2	1.3	0.3
Other noncurrent liabilities	(33.2)	(14.5)	(17.9)
Other operating activities	(2.5)	0.3	0
Net operating activities	159.2	317.0	279.2
Investing Activities
Capital expenditures	(71.8)	(90.8)	(255.7)
Business acquired in purchase transaction, net of cash acquired	0	0	(310.4)
Proceeds from sale/leaseback of equipment	0	35.8	4.4
Proceeds from disposition of property, plant and equipment	5.6	4.6	8.6
Distributions from affiliated companies, net	0	1.5	1.3
Restricted cash activity, net	4.2	7.7	39.8
Other investing activities	0.3	(2.6)	(0.4)
Net investing activities	(61.7)	(43.8)	(512.4)
Long-term debt:
Borrowings	150.0	0	200.0
Repayments	162.4	23.7	19.9
Fianncing portion of earn out payment - SunBelt	(14.8)	(17.1)	(15.3)
Common stock repurchased and retired	(64.8)	(36.2)	(3.1)
Stock options exercised	6.6	8.8	1.3
Excess tax benefits from stock-based compensation	1.1	1.6	0.7
Dividends paid	(63.0)	(64.0)	(64.1)
Deferred debt issuance costs	(1.2)	0	(6.0)
Net financing activities	(148.5)	(130.6)	93.6
Net (decrease) increase in cash and cash equivalents	(51.0)	142.6	(139.6)
Cash and cash equivalents, beginning of year	307.8	165.2	304.8
Cash and cash equivalents, end of year	256.8	307.8	165.2
Cash paid for interest and income taxes:
Interest	36.8	37.2	27.5
Income taxes, net of refunds	$ 49.0	$ 61.3	$ 28.4