Condensed Consolidating Financial Statements (Details) - USD ($) $ in Millions	Sep. 30, 2015	Dec. 31, 2014	Sep. 30, 2014	Dec. 31, 2013
Current Assets:
Cash and cash equivalents	$ 35.1	$ 37.5	$ 48.1	$ 38.0
Accounts and notes receivable, net	537.7	421.4
Inventories, net	488.3	463.3
Deferred income taxes, net	31.9	32.5
Other assets	58.9	59.3
Total current assets	1,151.9	1,014.0
Property, plant and equipment, net	345.3	358.6
Goodwill	199.8	209.4
Investments in subsidiaries	0.0	0.0
Deferred income taxes	97.9	97.5
Other assets, net	86.6	84.8
Intercompany receivables (payables)	0.0	0.0
Total assets	1,881.5	1,764.3
Current Liabilities:
Short-term debt	226.3	226.6
Current maturities of long-term debt	23.7	24.0
Accounts payable	337.7	324.3
Accrued expenses	251.9	239.0
Income taxes payable	13.8	13.4
Total current liabilities	853.4	827.3
Long-term debt	668.0	675.0
Post-retirement benefits, other than pensions	2.9	4.5
Pensions	134.2	129.9
Other liabilities	125.5	118.6
Total liabilities	$ 1,784.0	$ 1,755.3
Commitments and contingencies
Total stockholders’ equity	$ 97.5	$ 9.0
Total liabilities and stockholders' equity	1,881.5	1,764.3
Parent [Member]
Current Assets:
Cash and cash equivalents	1.3	1.0	1.5	1.1
Accounts and notes receivable, net	0.0	0.0
Inventories, net	0.0	0.0
Deferred income taxes, net	3.3	2.8
Other assets	3.3	3.6
Total current assets	7.9	7.4
Property, plant and equipment, net	0.0	0.0
Goodwill	0.0	0.0
Investments in subsidiaries	1,111.9	978.1
Deferred income taxes	2.4	0.5
Other assets, net	4.5	5.2
Intercompany receivables (payables)	(360.7)	(280.4)
Total assets	766.0	710.8
Current Liabilities:
Short-term debt	0.0	0.0
Current maturities of long-term debt	22.5	22.5
Accounts payable	16.2	13.4
Accrued expenses	15.7	9.0
Income taxes payable	(41.3)	(3.7)
Total current liabilities	13.1	41.2
Long-term debt	653.0	659.5
Post-retirement benefits, other than pensions	0.0	0.0
Pensions	0.0	0.0
Other liabilities	2.4	1.1
Total liabilities	668.5	$ 701.8
Commitments and contingencies
Total stockholders’ equity	97.5	$ 9.0
Total liabilities and stockholders' equity	766.0	710.8
Guarantor Subsidiaries [Member]
Current Assets:
Cash and cash equivalents	12.5	11.5	15.1	10.5
Accounts and notes receivable, net	42.1	12.3
Inventories, net	376.1	350.6
Deferred income taxes, net	27.4	27.3
Other assets	48.7	45.7
Total current assets	506.8	447.4
Property, plant and equipment, net	268.3	269.0
Goodwill	140.4	140.4
Investments in subsidiaries	394.7	263.5
Deferred income taxes	91.4	90.8
Other assets, net	59.8	61.0
Intercompany receivables (payables)	357.6	302.4
Total assets	1,819.0	1,574.5
Current Liabilities:
Short-term debt	0.0	0.0
Current maturities of long-term debt	0.9	1.2
Accounts payable	255.9	237.8
Accrued expenses	181.8	175.5
Income taxes payable	94.8	34.7
Total current liabilities	533.4	449.2
Long-term debt	14.8	15.3
Post-retirement benefits, other than pensions	2.9	4.5
Pensions	123.4	117.6
Other liabilities	125.6	118.7
Total liabilities	800.1	$ 705.3
Commitments and contingencies
Total stockholders’ equity	1,018.9	$ 869.2
Total liabilities and stockholders' equity	1,819.0	1,574.5
Non-Guarantor Subsidiaries [Member]
Current Assets:
Cash and cash equivalents	21.3	25.0	31.5	26.4
Accounts and notes receivable, net	495.6	409.1
Inventories, net	119.6	119.7
Deferred income taxes, net	6.3	7.4
Other assets	65.7	67.2
Total current assets	708.5	628.4
Property, plant and equipment, net	77.0	89.6
Goodwill	59.4	69.0
Investments in subsidiaries	(0.6)	(0.6)
Deferred income taxes	13.7	15.8
Other assets, net	23.8	20.1
Intercompany receivables (payables)	3.1	(22.0)
Total assets	884.9	800.3
Current Liabilities:
Short-term debt	226.3	226.6
Current maturities of long-term debt	0.3	0.3
Accounts payable	65.6	73.1
Accrued expenses	54.4	54.5
Income taxes payable	27.2	47.5
Total current liabilities	373.8	402.0
Long-term debt	0.2	0.2
Post-retirement benefits, other than pensions	0.0	0.0
Pensions	10.8	12.3
Other liabilities	10.4	11.7
Total liabilities	395.2	$ 426.2
Commitments and contingencies
Total stockholders’ equity	489.7	$ 374.1
Total liabilities and stockholders' equity	884.9	800.3
Eliminations [Member]
Current Assets:
Cash and cash equivalents	0.0	0.0	$ 0.0	$ 0.0
Accounts and notes receivable, net	0.0	0.0
Inventories, net	(7.4)	(7.0)
Deferred income taxes, net	(5.1)	(5.0)
Other assets	(58.8)	(57.2)
Total current assets	(71.3)	(69.2)
Property, plant and equipment, net	0.0	0.0
Goodwill	0.0	0.0
Investments in subsidiaries	(1,506.0)	(1,241.0)
Deferred income taxes	(9.6)	(9.6)
Other assets, net	(1.5)	(1.5)
Intercompany receivables (payables)	0.0	0.0
Total assets	(1,588.4)	(1,321.3)
Current Liabilities:
Short-term debt	0.0	0.0
Current maturities of long-term debt	0.0	0.0
Accounts payable	0.0	0.0
Accrued expenses	0.0	0.0
Income taxes payable	(66.9)	(65.1)
Total current liabilities	(66.9)	(65.1)
Long-term debt	0.0	0.0
Post-retirement benefits, other than pensions	0.0	0.0
Pensions	0.0	0.0
Other liabilities	(12.9)	(12.9)
Total liabilities	(79.8)	$ (78.0)
Commitments and contingencies
Total stockholders’ equity	(1,508.6)	$ (1,243.3)
Total liabilities and stockholders' equity	$ (1,588.4)	$ (1,321.3)