Derivative Financial Instruments at Fair Value (Detail) (USD $) In Millions, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Derivatives, Fair Value [Line Items]
Total USD Equivalent Notional Amount, Commodity cash flow hedges	$ 4.4	$ 6.2
Total USD Equivalent Notional Amount, Interest rate cash flow hedges		200.0
Total derivative assets	0.5	3.2
Future USD sales of Canadian subsidiaries
Derivatives, Fair Value [Line Items]
Total USD Equivalent Notional Amount, Interest rate cash flow hedges	200.0
Total USD Equivalent Notional Amount, Currency cash flow hedges	29.9	33.4
Future USD COGS of Canadian subsidiaries
Derivatives, Fair Value [Line Items]
Total USD Equivalent Notional Amount, Currency cash flow hedges	4.1	7.6
Future USD COGS of European subsidiary
Derivatives, Fair Value [Line Items]
Total USD Equivalent Notional Amount, Currency cash flow hedges	6.3
USD inter-company note receivable on a Canadian subsidiary
Derivatives, Fair Value [Line Items]
Total USD Equivalent Notional Amount, Fair value hedges	11.5	11.5
USD inter-company note receivables on a Swiss subsidiary
Derivatives, Fair Value [Line Items]
Total USD Equivalent Notional Amount, Fair value hedges	14.5	14.5
Future USD sales of a Chinese subsidiary
Derivatives, Fair Value [Line Items]
Total USD Equivalent Notional Amount, Currency cash flow hedges		44.1
Future MXP cost of goods sold of a US subsidiary
Derivatives, Fair Value [Line Items]
Total USD Equivalent Notional Amount, Currency cash flow hedges		1.1
Future EUR cost of goods sold of a US branch
Derivatives, Fair Value [Line Items]
Total USD Equivalent Notional Amount, Currency cash flow hedges		1.6
Hedge of EUR inter-company note receivable from a European subsidiary
Derivatives, Fair Value [Line Items]
Total USD Equivalent Notional Amount		28.0
Other Current Assets
Derivatives, Fair Value [Line Items]
Commodity cash flow derivatives designated as hedging instruments, Assets
Interest rate cash flow derivatives designated as hedging instruments, Assets
Total cash flow hedges, Assets	0.5	0.7
Fair value derivatives designated as hedging instruments, Assets
Total derivative assets	0.5	3.2
Other Current Assets | Future USD sales of Canadian subsidiaries
Derivatives, Fair Value [Line Items]
Currency cash flow derivatives designated as hedging instruments, Assets	0.1	0.1
Other Current Assets | Future USD COGS of Canadian subsidiaries
Derivatives, Fair Value [Line Items]
Currency cash flow derivatives designated as hedging instruments, Assets	0.2	0.5
Other Current Assets | Future USD COGS of European subsidiary
Derivatives, Fair Value [Line Items]
Currency cash flow derivatives designated as hedging instruments, Assets	0.2
Other Current Assets | USD inter-company note receivable on a Canadian subsidiary
Derivatives, Fair Value [Line Items]
Fair value derivatives designated as hedging instruments, Assets
Other Current Assets | USD inter-company note receivables on a Swiss subsidiary
Derivatives, Fair Value [Line Items]
Fair value derivatives designated as hedging instruments, Assets
Other Current Assets | Future USD sales of a Chinese subsidiary
Derivatives, Fair Value [Line Items]
Currency cash flow derivatives designated as hedging instruments, Assets		0.1
Other Current Assets | Hedge of EUR inter-company note receivable from a European subsidiary
Derivatives, Fair Value [Line Items]
Derivatives not designated as hedging instruments, Assets		2.5
Sundry Assets
Derivatives, Fair Value [Line Items]
Commodity cash flow derivatives designated as hedging instruments, Assets
Interest rate cash flow derivatives designated as hedging instruments, Assets
Fair value derivatives designated as hedging instruments, Assets
Sundry Assets | USD inter-company note receivable on a Canadian subsidiary
Derivatives, Fair Value [Line Items]
Fair value derivatives designated as hedging instruments, Assets
Sundry Assets | USD inter-company note receivables on a Swiss subsidiary
Derivatives, Fair Value [Line Items]
Fair value derivatives designated as hedging instruments, Assets
Other Current Liabilities
Derivatives, Fair Value [Line Items]
Commodity cash flow derivatives designated as hedging instruments, Liabilities	1.3	1.9
Interest rate cash flow derivatives designated as hedging instruments, Liabilities	40.6	32.4
Total cash flow hedges, Liabilities	42.1	35.0
Fair value derivatives designated as hedging instruments, Liabilities	2.0	1.7
Total derivative liabilities	44.1	36.7
Other Current Liabilities | Future USD sales of Canadian subsidiaries
Derivatives, Fair Value [Line Items]
Currency cash flow derivatives designated as hedging instruments, Liabilities	0.2	0.5
Other Current Liabilities | USD inter-company note receivable on a Canadian subsidiary
Derivatives, Fair Value [Line Items]
Fair value derivatives designated as hedging instruments, Liabilities	0.2	0.1
Other Current Liabilities | USD inter-company note receivables on a Swiss subsidiary
Derivatives, Fair Value [Line Items]
Fair value derivatives designated as hedging instruments, Liabilities	1.8	1.6
Other Current Liabilities | Future MXP cost of goods sold of a US subsidiary
Derivatives, Fair Value [Line Items]
Currency cash flow derivatives designated as hedging instruments, Liabilities		0.1
Other Current Liabilities | Future EUR cost of goods sold of a US branch
Derivatives, Fair Value [Line Items]
Currency cash flow derivatives designated as hedging instruments, Liabilities		0.1
Other Current Liabilities | Hedge of EUR inter-company note receivable from a European subsidiary
Derivatives, Fair Value [Line Items]
Derivatives not designated as hedging instruments, Liabilities
Other Long-Term Liabilities
Derivatives, Fair Value [Line Items]
Commodity cash flow derivatives designated as hedging instruments, Liabilities	0.2	0.3
Total cash flow hedges, Liabilities	0.2	0.3
Total derivative liabilities	0.2	0.3
Other Long-Term Liabilities | Hedge of EUR inter-company note receivable from a European subsidiary
Derivatives, Fair Value [Line Items]
Derivatives not designated as hedging instruments, Liabilities