Components of Deferred Tax Assets and Deferred Tax Liabilities (Detail) - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Deferred tax assets:
Net operating loss carryforwards	$ 366.9	$ 375.2
Alternative minimum tax credits	11.8	10.9
Repurchase reserve	0.2	2.1
Inventory	0.4	0.6
Compensation	1.1	0.9
Pension obligations	5.7
Other	2.1	1.0
Total deferred tax assets	388.2	390.7
Deferred tax valuation allowance	(382.4)	(385.6)	$ (375.0)	$ (373.7)
Deferred tax assets, net of valuation allowance	5.8	5.1
Deferred tax liabilities:
Property, plant and equipment	(11.4)
Intangible assets	(1.1)	(0.6)
Other		0.4
Total deferred tax liabilities	(12.5)	(0.2)
Net deferred assets		$ 4.9
Net deferred (liabilities)	$ (6.7)