Supplemental Guarantor Condensed Financial Information (Condensed Balance Sheets) (Details) - USD ($) $ in Millions	Mar. 31, 2017	Dec. 31, 2016	Apr. 01, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 83.4	$ 101.1	$ 120.3	$ 112.4
Receivables, net of allowances	673.9	664.5
Inventories	818.1	768.2
Prepaid expenses and other	82.4	65.4
Total current assets	1,657.8	1,599.2
Property, plant and equipment, net	529.0	529.3
Deferred income taxes	20.0	20.4
Intercompany accounts	0.0	0.0
Investment in subsidiaries	0.0	0.0
Goodwill	12.1	12.0
Intangible assets, net	27.1	28.3
Unconsolidated affiliated companies	0.2	9.0
Other non-current assets	47.6	43.4
Total assets	2,293.8	2,241.6
Current liabilities:
Accounts payable	424.9	414.0
Accrued liabilities	340.8	419.6
Current portion of long-term debt	59.6	67.5
Total current liabilities	825.3	901.1
Long-term debt	992.9	871.1
Deferred income taxes	124.0	126.7
Intercompany accounts	0.0	0.0
Other liabilities	170.6	173.8
Total liabilities	2,112.8	2,072.7
Total Company shareholders’ equity	165.3	153.1
Noncontrolling interest	15.7	15.8
Total liabilities and equity	2,293.8	2,241.6
Eliminations [Member]
Current assets:
Cash and cash equivalents	0.0	0.0	0.0	0.0
Receivables, net of allowances	0.0	0.0
Inventories	0.0	0.0
Prepaid expenses and other	0.0	0.0
Total current assets	0.0	0.0
Property, plant and equipment, net	0.0	0.0
Deferred income taxes	(46.8)	(42.9)
Intercompany accounts	(1,246.7)	(1,266.5)
Investment in subsidiaries	(724.1)	(685.9)
Goodwill	0.0	0.0
Intangible assets, net	0.0	0.0
Unconsolidated affiliated companies	0.0	0.0
Other non-current assets	0.0	0.0
Total assets	(2,017.6)	(1,995.3)
Current liabilities:
Accounts payable	0.0	0.0
Accrued liabilities	0.0	0.0
Current portion of long-term debt	0.0	0.0
Total current liabilities	0.0	0.0
Long-term debt	0.0	0.0
Deferred income taxes	(46.8)	(42.9)
Intercompany accounts	(1,246.7)	(1,266.5)
Other liabilities	0.0	0.0
Total liabilities	(1,293.5)	(1,309.4)
Total Company shareholders’ equity	(724.1)	(685.9)
Noncontrolling interest	0.0	0.0
Total liabilities and equity	(2,017.6)	(1,995.3)
Parent [Member]
Current assets:
Cash and cash equivalents	0.0	0.0	0.0	0.0
Receivables, net of allowances	0.0	0.0
Inventories	0.0	0.0
Prepaid expenses and other	0.0	0.0
Total current assets	0.0	0.0
Property, plant and equipment, net	0.3	0.3
Deferred income taxes	0.0	0.0
Intercompany accounts	1,055.9	1,092.4
Investment in subsidiaries	90.4	73.2
Goodwill	0.0	0.0
Intangible assets, net	0.0	0.0
Unconsolidated affiliated companies	0.0	0.0
Other non-current assets	0.0	0.0
Total assets	1,146.6	1,165.9
Current liabilities:
Accounts payable	0.0	0.0
Accrued liabilities	55.8	93.4
Current portion of long-term debt	0.0	0.0
Total current liabilities	55.8	93.4
Long-term debt	773.2	772.3
Deferred income taxes	152.2	147.1
Intercompany accounts	0.0	0.0
Other liabilities	0.1	0.0
Total liabilities	981.3	1,012.8
Total Company shareholders’ equity	165.3	153.1
Noncontrolling interest	0.0	0.0
Total liabilities and equity	1,146.6	1,165.9
Guarantor Subsidiaries [Member]
Current assets:
Cash and cash equivalents	2.7	1.0	2.5	0.8
Receivables, net of allowances	219.0	202.9
Inventories	406.7	363.4
Prepaid expenses and other	30.1	26.2
Total current assets	658.5	593.5
Property, plant and equipment, net	210.4	202.8
Deferred income taxes	46.8	42.9
Intercompany accounts	112.4	104.7
Investment in subsidiaries	633.7	612.7
Goodwill	5.6	5.6
Intangible assets, net	6.0	6.0
Unconsolidated affiliated companies	0.0	8.8
Other non-current assets	14.7	15.5
Total assets	1,688.1	1,592.5
Current liabilities:
Accounts payable	136.2	112.4
Accrued liabilities	71.6	105.0
Current portion of long-term debt	0.0	0.0
Total current liabilities	207.8	217.4
Long-term debt	193.7	75.9
Deferred income taxes	0.0	0.0
Intercompany accounts	1,133.6	1,161.1
Other liabilities	62.6	64.9
Total liabilities	1,597.7	1,519.3
Total Company shareholders’ equity	90.4	73.2
Noncontrolling interest	0.0	0.0
Total liabilities and equity	1,688.1	1,592.5
Non-Guarantor Subsidiaries [Member]
Current assets:
Cash and cash equivalents	80.7	100.1	$ 117.8	$ 111.6
Receivables, net of allowances	454.9	461.6
Inventories	411.4	404.8
Prepaid expenses and other	52.3	39.2
Total current assets	999.3	1,005.7
Property, plant and equipment, net	318.3	326.2
Deferred income taxes	20.0	20.4
Intercompany accounts	78.4	69.4
Investment in subsidiaries	0.0	0.0
Goodwill	6.5	6.4
Intangible assets, net	21.1	22.3
Unconsolidated affiliated companies	0.2	0.2
Other non-current assets	32.9	27.9
Total assets	1,476.7	1,478.5
Current liabilities:
Accounts payable	288.7	301.6
Accrued liabilities	213.4	221.2
Current portion of long-term debt	59.6	67.5
Total current liabilities	561.7	590.3
Long-term debt	26.0	22.9
Deferred income taxes	18.6	22.5
Intercompany accounts	113.1	105.4
Other liabilities	107.9	108.9
Total liabilities	827.3	850.0
Total Company shareholders’ equity	633.7	612.7
Noncontrolling interest	15.7	15.8
Total liabilities and equity	$ 1,476.7	$ 1,478.5