Sale Of Accounts Receivable (Detail) In Millions, unless otherwise specified	12 Months Ended					12 Months Ended				12 Months Ended
	Dec. 31, 2011 USD ($)	Feb. 29, 2012 USD ($)	Feb. 29, 2012 PLN	Jan. 31, 2012 USD ($)	Jan. 31, 2012 PLN	Dec. 31, 2011 ING Polska [Member] USD ($)	Dec. 31, 2011 ING Polska [Member] PLN	Feb. 24, 2011 ING Polska [Member] USD ($)	Feb. 24, 2011 ING Polska [Member] PLN	Dec. 31, 2011 GPB [Member] USD ($)	Dec. 31, 2011 GPB [Member] RUB	Oct. 14, 2010 GPB [Member] USD ($)	Oct. 14, 2010 GPB [Member] RUB
Accounts, Notes, Loans and Financing Receivable [Line Items]
Maximum sale under factoring agreement							290.0	$ 84.9	290.0			$ 36.5	1,022.0
Factoring agreements, termination date	Apr. 30, 2012
Factoring agreements, renewal date	May 01, 2012
Factoring agreements, limit				84.9	290.0
Factoring agreements, reduced limit		64.4	220.0	73.2	250.0
Total balance of accounts receivable under factoring						81.7	279.3
Accounts receivable sold during the period						454.9	1,364.6			23.6	754.4
Non-recourse factoring loss						2.9	9.2			0.1	3.4
Liability for recourse from factored receivables	$ 7.3