Condensed Consolidating Financial Statements (Balance Sheets) (Details) - USD ($)	Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2018	Dec. 31, 2017
Current Assets:
Cash and cash equivalents	$ 31,700,000	$ 46,300,000	$ 57,100,000	$ 68,200,000
Accounts and notes receivable, net	502,600,000	472,700,000
Inventories, net	600,100,000	509,800,000
Other assets	86,500,000	60,600,000
Total current assets	1,220,900,000	1,089,400,000
Property, plant and equipment, net	411,700,000	408,300,000
Right-of-use assets from operating leases	170,100,000	0
Goodwill	186,500,000	186,600,000
Investment in subsidiaries	0	0
Deferred income taxes	48,500,000	67,000,000.0
Other assets, net	68,000,000.0	65,900,000
Intercompany receivables (payables), net	0	0
Total assets	2,105,700,000	1,817,200,000
Current Liabilities:
Short-term debt		0
Current maturities of long-term debt	237,600,000	300,800,000
Current operating lease liabilities	48,100,000	0
Accounts payable	411,900,000	433,300,000
Accrued expenses	219,800,000	272,300,000
Income taxes (receivable) payable	0	2,100,000
Total current liabilities	917,400,000	1,008,500,000
Long-term debt	1,059,000,000.0	740,500,000
Long-term operating lease liabilities	122,600,000	0
Pensions	82,300,000	82,800,000
Other liabilities	129,200,000	135,000,000.0
Total liabilities	2,310,500,000	1,966,800,000
Commitments and contingencies
Total stockholders' (deficit) equity	(204,800,000)	(149,600,000)
Total liabilities and stockholders' deficit	2,105,700,000	1,817,200,000
Eliminations [Member]
Current Assets:
Cash and cash equivalents	0	0	0	0
Accounts and notes receivable, net	0	0
Inventories, net	(1,900,000)	(5,500,000)
Other assets	(33,400,000)	(33,600,000)
Total current assets	(35,300,000)	(39,100,000)
Property, plant and equipment, net	0	(3,600,000)
Right-of-use assets from operating leases	0
Goodwill	0	0
Investment in subsidiaries	(1,872,300,000)	(1,669,200,000)
Deferred income taxes	(12,200,000)	(12,200,000)
Other assets, net	14,200,000	(1,500,000)
Intercompany receivables (payables), net	(119,900,000)	(102,900,000)
Total assets	(2,025,500,000)	(1,828,500,000)
Current Liabilities:
Short-term debt		0
Current maturities of long-term debt	0	0
Current operating lease liabilities	0
Accounts payable	0	0
Accrued expenses	0	0
Income taxes (receivable) payable	(50,600,000)	(50,800,000)
Total current liabilities	(50,600,000)	(50,800,000)
Long-term debt	0	0
Long-term operating lease liabilities	0
Pensions	0	0
Other liabilities	0	0
Total liabilities	(50,600,000)	(50,800,000)
Commitments and contingencies
Total stockholders' (deficit) equity	(1,974,900,000)	(1,777,700,000)
Total liabilities and stockholders' deficit	(2,025,500,000)	(1,828,500,000)
Parent [Member]
Current Assets:
Cash and cash equivalents	2,000,000.0	1,800,000	1,400,000	1,600,000
Accounts and notes receivable, net	0	0
Inventories, net	0	0
Other assets	4,500,000	3,300,000
Total current assets	6,500,000	5,100,000
Property, plant and equipment, net	0	0
Right-of-use assets from operating leases	0
Goodwill	0	0
Investment in subsidiaries	1,367,200,000	1,311,900,000
Deferred income taxes	(12,500,000)	1,400,000
Other assets, net	1,700,000	1,500,000
Intercompany receivables (payables), net	(497,900,000)	(715,500,000)
Total assets	865,000,000.0	604,400,000
Current Liabilities:
Short-term debt		0
Current maturities of long-term debt	6,900,000	29,400,000
Current operating lease liabilities	0
Accounts payable	25,600,000	25,500,000
Accrued expenses	7,500,000	12,100,000
Income taxes (receivable) payable	(7,200,000)	(38,500,000)
Total current liabilities	32,800,000	28,500,000
Long-term debt	1,036,700,000	724,900,000
Long-term operating lease liabilities	0
Pensions	0	0
Other liabilities	300,000	600,000
Total liabilities	1,069,800,000	754,000,000.0
Commitments and contingencies
Total stockholders' (deficit) equity	(204,800,000)	(149,600,000)
Total liabilities and stockholders' deficit	865,000,000.0	604,400,000
Guarantor Subsidiaries [Member]
Current Assets:
Cash and cash equivalents	13,000,000.0	15,400,000	15,000,000.0	28,000,000.0
Accounts and notes receivable, net	64,200,000	44,300,000
Inventories, net	497,500,000	411,400,000
Other assets	63,200,000	36,200,000
Total current assets	637,900,000	507,300,000
Property, plant and equipment, net	295,300,000	293,300,000
Right-of-use assets from operating leases	146,200,000
Goodwill	166,100,000	166,100,000
Investment in subsidiaries	454,900,000	357,800,000
Deferred income taxes	50,700,000	54,400,000
Other assets, net	49,800,000	48,100,000
Intercompany receivables (payables), net	438,200,000	675,800,000
Total assets	2,239,100,000	2,102,800,000
Current Liabilities:
Short-term debt		0
Current maturities of long-term debt	5,600,000	2,800,000
Current operating lease liabilities	41,700,000
Accounts payable	276,600,000	295,700,000
Accrued expenses	175,000,000.0	213,800,000
Income taxes (receivable) payable	19,800,000	40,600,000
Total current liabilities	518,700,000	552,900,000
Long-term debt	21,700,000	15,000,000.0
Long-term operating lease liabilities	105,000,000.0
Pensions	76,500,000	75,100,000
Other liabilities	122,000,000.0	126,400,000
Total liabilities	843,900,000	769,400,000
Commitments and contingencies
Total stockholders' (deficit) equity	1,395,200,000	1,333,400,000
Total liabilities and stockholders' deficit	2,239,100,000	2,102,800,000
Non-Guarantor Subsidiaries [Member]
Current Assets:
Cash and cash equivalents	16,700,000	29,100,000	$ 40,700,000	$ 38,600,000
Accounts and notes receivable, net	438,400,000	428,400,000
Inventories, net	104,500,000	103,900,000
Other assets	52,200,000	54,700,000
Total current assets	611,800,000	616,100,000
Property, plant and equipment, net	116,400,000	118,600,000
Right-of-use assets from operating leases	23,900,000
Goodwill	20,400,000	20,500,000
Investment in subsidiaries	50,200,000	(500,000)
Deferred income taxes	22,500,000	23,400,000
Other assets, net	2,300,000	17,800,000
Intercompany receivables (payables), net	179,600,000	142,600,000
Total assets	1,027,100,000	938,500,000
Current Liabilities:
Short-term debt		0
Current maturities of long-term debt	225,100,000	268,600,000
Current operating lease liabilities	6,400,000
Accounts payable	109,700,000	112,100,000
Accrued expenses	37,300,000	46,400,000
Income taxes (receivable) payable	38,000,000.0	50,800,000
Total current liabilities	416,500,000	477,900,000
Long-term debt	600,000	600,000
Long-term operating lease liabilities	17,600,000
Pensions	5,800,000	7,700,000
Other liabilities	6,900,000	8,000,000.0
Total liabilities	447,400,000	494,200,000
Commitments and contingencies
Total stockholders' (deficit) equity	579,700,000	444,300,000
Total liabilities and stockholders' deficit	$ 1,027,100,000	$ 938,500,000