Accounts Payable and Accrued Liabilities - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended			12 Months Ended
	Dec. 31, 2012	Sep. 30, 2012	Dec. 31, 2011	Dec. 31, 2012	Dec. 31, 2012 Cost of sales [Member]	Dec. 31, 2012 Selling, general and administrative expenses [Member]	Dec. 31, 2012 Research and development [Member]	Dec. 31, 2012 Americas [Member]	Dec. 31, 2011 Americas [Member]	Dec. 31, 2012 EMEA [Member]	Dec. 31, 2011 EMEA [Member]	Dec. 31, 2012 Asia Pacific [Member]	Dec. 31, 2011 Asia Pacific [Member]
Segment Reporting Information [Line Items]
Accounts payable due to bank	$ 21.3		$ 51.4	$ 21.3
Settlement of accounts payable outstanding				1 year
Recognized severance costs								7.2	0.6	3.4	3.0	1.1	1.4
Other restructuring costs								0.8		5.2		0.2
Severance and other restructuring cost	0.5	17.4	5.0		6.4	10.0	1.5
Accrued severance	$ 5.3			$ 5.3