Income Taxes - Deferred Income Taxes (Detail) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Assets
Property, plant and equipment	$ 1.3	$ 1.0
Goodwill	1.0	1.2
Employee benefits related	2.0	2.3
Inventories	0.6	0.9
Insurance related	1.0	1.1
Other accrued liabilities	1.2	0.9
Accounts receivables	0.2	0.3
Income tax loss carryforwards	31.1	31.3
Other, assets	0.5	0.6
Gross deferred tax assets	38.9	39.6
Valuation allowance	(30.1)	(31.6)
Deferred Tax Assets, Total	8.8	8.0
Liabilities
LIFO	8.2	7.4
Other, liabilities	0.6	0.6
Gross deferred tax liabilities	8.8	8.0
Deferred Tax Liabilities, Total	$ 8.8	$ 8.0