Note 13 - Stock-Based Compensation Stock-Based Compensation Expense (Details) (USD $) Share data in Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2011		Dec. 31, 2010	Dec. 31, 2009
Equity Incentive Plan 2005 [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Exercises	(4,800)		(20,000)	(1,500)
Equity Incentive Plan 2005 [Member] | Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Number of shares outstanding, begining of period	10,179
Grants	806
Exercises	(4,807)
Forfeited/Cancelled/Expired	(40)
Number of shares outstanding, end of period	6,138
Shares outstanding, weighted-average exercise price per share, beginning of period	20.61
Weighted-average exercise price per share, grants	42.37
Weighted-average exercise price per share, exercises	21.29
Weighted-average exercise price per share, forfeited/cancelled/expired	21.78
Shares outstanding, weighted-average exercise price per share, end of period	22.96
Exercisable	5,171
Vested and expected to vest	6,015
Weighted-average exercise price per share, exercisable	20.18
Weighted-average exercise price per share, vested and expected to vest	22.61
Weighted-average remaining contractual term (in years), options outstanding	3.7
Weighted-average remaining contractual term (in years), options exercisable	2.8
Weighted-average remining contractual term (in years), vested and expected to vest	3.6
Aggregate intrinsic value, options outstanding	91,028,000	[1]
Aggregate intrinsic value, options exercisable	87,490,000	[1]
Aggregate intrinsic value, options vested and expected to vest	90,792,000	[1]
Equity Incentive Plan 2005 [Member] | Restricted Stock Units And Performance Based Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Weighted-average remining contractual term (in years), vested and expected to vest	1.5
Parent [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Increase (decrease) in stock-based compensation expense				3,400,000

[1] For those stock options with an exercise price below the closing price per share on December 31, 2011, aggregate intrinsic value represents the difference between the exercise price and the closing price per share of our common stock on December 31, 2011, multiplied by the number of stock options outstanding, exercisable, or vested and expected to vest as of December 31, 2011.