Note 12. Deferred Payment Obligations (Detail) (USD $) In Millions, unless otherwise specified	0 Months Ended	1 Months Ended	6 Months Ended
	Jul. 06, 2009	Jan. 26, 2009	Jun. 30, 2012	Jul. 01, 2012	Dec. 31, 2012
Contractual Obligation	$ 4.4	$ 12.0
Finite-lived Intangible Assets Acquired	1.1	3.0
Contractual Obligation, Due in Next Twelve Months					3.3
Debt Instrument, Payment Terms			three	three
Debt, Weighted Average Interest Rate			10.20%
Short-term Debt			1.1
Patents [Member]
Contractual Obligation, Due in Next Twelve Months					9.0
Debt, Weighted Average Interest Rate			13.90%
Short-term Debt			$ 3.0