Note 2. Long-Term Incentive Plans (Detail) - Stock Option Activity	9 Months Ended
	Sep. 30, 2012
Outstanding at January 1, 2012	3,224,879
Granted	1,498,452
Exercised	(1,667)
Forfeited and cancelled	(399,339)
Outstanding at September 30, 2012	4,322,325