Income Taxes (Deferred Income Tax Assets and Liabilities) (Detail) (USD $) In Millions, unless otherwise specified	Dec. 30, 2011	Dec. 31, 2010
Current:
Allowances and other accrued liabilities	$ (2.5)	$ (3.5)
Inventories	(13.2)	(24.0)
Total current tax liabilities	(15.7)	(27.5)
Noncurrent:
Property, plant and equipment	(72.0)	(74.9)
Equity in earnings of unconsolidated companies	0.2	(0.7)
Pension	(2.7)	(1.9)
Other noncurrent liabilities	(5.1)	(4.8)
Total noncurrent deferred tax liabilities	(79.6)	(82.3)
Total current and noncurrent deferred tax liabilities	(95.3)	(109.8)
Current:
Net operating loss carryforwards	6.0	9.4
Allowances and other accrued assets	22.1	27.1
Inventories	2.9	3.5
Total current deferred tax assets	31.0	40.0
Valuation allowance	(18.6)	(22.5)
Total net current deferred tax assets	12.4	17.5
Noncurrent:
Pension liability	21.6	20.4
Property, plant and equipment	5.5	7.9
Post-retirement benefits other than pension	0.9	1.0
Net operating loss carryforwards	149.6	160.0
Capital loss carryover	2.8	7.7
Other noncurrent assets	32.2	33.1
Total noncurrent deferred tax assets	212.6	230.1
Valuation allowance	(155.7)	(172.9)
Total net noncurrent deferred tax assets	56.9	57.2
Total deferred tax assets, net	69.3	74.7
Net deferred tax liabilities	$ (26.0)	$ (35.1)