Reportable Business Segment Information (Parenthetical) (Detail) (USD $) In Millions	3 Months Ended		9 Months Ended					1 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011 Corporate	Sep. 30, 2011 Metal Containers	Sep. 30, 2011 Closures	Mar. 01, 2011 Vogel & Noot Holding AG
Segment Reporting Information [Line Items]
Date of acquisition, VN operations								2011-03-01
Amortization of debt discount and issuance costs excluded from depreciation and amortization	$ 0.9	$ 0.8	$ 2.5	$ 2.1
Costs attributable to announced acquisitions		0.5		0.5
Income as result of proceeds received from termination of the Graham Packaging merger agreement net of costs					25.2
Charge related to resolution of past product liability dispute						3.3
Charge included for the remeasurement of net assets							$ 3.2