Condensed Consolidating Financial Statements (Balance Sheet) (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Current Assets:
Cash and cash equivalents	$ 37.3	$ 46.3	$ 68.2	$ 50.2
Short-term Investments	2.9	0.0
Accounts and notes receivable, net	477.8	472.7
Inventories, net	544.1	509.8
Other assets	58.8	60.6
Total current assets	1,120.9	1,089.4
Property, plant and equipment, net of accumulated depreciation of $824.3 and $778.5 in 2019 and 2018, respectively	445.4	408.3	397.8
Operating Lease, Right-of-Use Asset	181.6	0.0
Goodwill	186.5	186.6	200.5
Investment in subsidiaries	0.0	0.0
Deferred income taxes	21.5	67.0
Other assets, net	79.0	65.9
Intercompany (payables) receivables, net	0.0	0.0
Total assets	2,034.9	1,817.2	1,891.5
Current Liabilities:
Current maturities of long-term debt	321.9	300.8
Operating Lease, Liability, Current	52.7	0.0
Accounts payable	372.4	433.3
Accrued expenses	255.7	272.3
Income taxes payable	0.0	2.1
Total current liabilities	1,002.7	1,008.5
Long-term debt	849.3	740.5
Operating Lease, Liability, Noncurrent	131.0	0.0
Pensions	87.4	82.8
Other liabilities	134.7	135.0
Total liabilities	2,205.1	1,966.8
Commitments and contingencies
Total stockholders' deficit	(170.2)	(149.6)	50.1	38.0
Total liabilities and stockholders' deficit	2,034.9	1,817.2
Parent [Member]
Current Assets:
Cash and cash equivalents	1.2	1.8	1.6	1.2
Short-term Investments	0.0
Accounts and notes receivable, net	0.0	0.0
Inventories, net	0.0	0.0
Other assets	4.4	3.3
Total current assets	5.6	5.1
Property, plant and equipment, net of accumulated depreciation of $824.3 and $778.5 in 2019 and 2018, respectively	0.0	0.0
Operating Lease, Right-of-Use Asset	0.0
Goodwill	0.0	0.0
Investment in subsidiaries	2,128.9	1,311.9
Deferred income taxes	4.1	1.4
Other assets, net	1.6	1.5
Intercompany (payables) receivables, net	(1,453.6)	(715.5)
Total assets	686.6	604.4
Current Liabilities:
Current maturities of long-term debt	29.4	29.4
Operating Lease, Liability, Current	0.0
Accounts payable	29.7	25.5
Accrued expenses	4.2	12.1
Income taxes payable	(53.4)	(38.5)
Total current liabilities	9.9	28.5
Long-term debt	823.4	724.9
Operating Lease, Liability, Noncurrent	0.0
Pensions	0.0	0.0
Other liabilities	23.5	0.6
Total liabilities	856.8	754.0
Commitments and contingencies
Total stockholders' deficit	(170.2)	(149.6)
Total liabilities and stockholders' deficit	686.6	604.4
Guarantor Subsidiaries [Member]
Current Assets:
Cash and cash equivalents	17.5	15.4	28.0	17.1
Short-term Investments	0.0
Accounts and notes receivable, net	53.5	44.3
Inventories, net	477.2	411.4
Other assets	40.7	36.2
Total current assets	588.9	507.3
Property, plant and equipment, net of accumulated depreciation of $824.3 and $778.5 in 2019 and 2018, respectively	388.8	293.3
Operating Lease, Right-of-Use Asset	158.9
Goodwill	166.2	166.1
Investment in subsidiaries	390.6	357.8
Deferred income taxes	5.4	54.4
Other assets, net	61.9	48.1
Intercompany (payables) receivables, net	1,114.6	675.8
Total assets	2,875.3	2,102.8
Current Liabilities:
Current maturities of long-term debt	6.4	2.8
Operating Lease, Liability, Current	45.5
Accounts payable	296.5	295.7
Accrued expenses	211.2	213.8
Income taxes payable	50.2	40.6
Total current liabilities	609.8	552.9
Long-term debt	23.4	15.0
Operating Lease, Liability, Noncurrent	115.3
Pensions	79.4	75.1
Other liabilities	104.4	126.4
Total liabilities	932.3	769.4
Commitments and contingencies
Total stockholders' deficit	1,943.0	1,333.4
Total liabilities and stockholders' deficit	2,875.3	2,102.8
Non-Guarantor Subsidiaries [Member]
Current Assets:
Cash and cash equivalents	18.6	29.1	38.6	31.9
Short-term Investments	2.9
Accounts and notes receivable, net	424.3	428.4
Inventories, net	68.7	103.9
Other assets	48.4	54.7
Total current assets	562.9	616.1
Property, plant and equipment, net of accumulated depreciation of $824.3 and $778.5 in 2019 and 2018, respectively	56.6	118.6
Operating Lease, Right-of-Use Asset	22.7
Goodwill	20.3	20.5
Investment in subsidiaries	50.2	(0.5)
Deferred income taxes	24.2	23.4
Other assets, net	1.3	17.8
Intercompany (payables) receivables, net	167.1	142.6
Total assets	905.3	938.5
Current Liabilities:
Current maturities of long-term debt	286.1	268.6
Operating Lease, Liability, Current	7.2
Accounts payable	46.2	112.1
Accrued expenses	40.3	46.4
Income taxes payable	54.1	50.8
Total current liabilities	433.9	477.9
Long-term debt	2.5	0.6
Operating Lease, Liability, Noncurrent	15.7
Pensions	8.0	7.7
Other liabilities	6.8	8.0
Total liabilities	466.9	494.2
Commitments and contingencies
Total stockholders' deficit	438.4	444.3
Total liabilities and stockholders' deficit	905.3	938.5
Eliminations [Member]
Current Assets:
Cash and cash equivalents	0.0	0.0	$ 0.0	$ 0.0
Short-term Investments	0.0
Accounts and notes receivable, net	0.0	0.0
Inventories, net	(1.8)	(5.5)
Other assets	(34.7)	(33.6)
Total current assets	(36.5)	(39.1)
Property, plant and equipment, net of accumulated depreciation of $824.3 and $778.5 in 2019 and 2018, respectively	0.0	(3.6)
Operating Lease, Right-of-Use Asset	0.0
Goodwill	0.0	0.0
Investment in subsidiaries	(2,569.7)	(1,669.2)
Deferred income taxes	(12.2)	(12.2)
Other assets, net	14.2	(1.5)
Intercompany (payables) receivables, net	171.9	(102.9)
Total assets	(2,432.3)	(1,828.5)
Current Liabilities:
Current maturities of long-term debt	0.0	0.0
Operating Lease, Liability, Current	0.0
Accounts payable	0.0	0.0
Accrued expenses	0.0	0.0
Income taxes payable	(50.9)	(50.8)
Total current liabilities	(50.9)	(50.8)
Long-term debt	0.0	0.0
Operating Lease, Liability, Noncurrent	0.0
Pensions	0.0	0.0
Other liabilities	0.0	0.0
Total liabilities	(50.9)	(50.8)
Commitments and contingencies
Total stockholders' deficit	(2,381.4)	(1,777.7)
Total liabilities and stockholders' deficit	$ (2,432.3)	$ (1,828.5)