Note 19 - Equity Incentive Plans (Details) - Stock Options Outstanding and Exercisable (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Shares	2,812,874	3,996,630	4,356,985	4,947,348
Weighted-Average Remaining Contractual Life	1 year 328 days	2 years 73 days	3 years	3 years 255 days
$19.93 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Price (in Dollars per share)		$ 28.70
Shares		438,000
Weighted-Average Remaining Contractual Life		36 days
Exercisable Shares		438,000
$23.37 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Price (in Dollars per share)		$ 32.26
Shares		10,000
Weighted-Average Remaining Contractual Life		6 months
Exercisable Shares		10,000
$24.80 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Price (in Dollars per share)		$ 38.38
Shares		15,000
Weighted-Average Remaining Contractual Life		328 days
Exercisable Shares		15,000
$28.70 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Price (in Dollars per share)		$ 37.00
Shares		568,270
Weighted-Average Remaining Contractual Life		1 year 36 days
Exercisable Shares		568,270
$32.26 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Price (in Dollars per share)		$ 32.47
Shares		245,060
Weighted-Average Remaining Contractual Life		1 year 73 days
Exercisable Shares		245,060
$32.47 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Price (in Dollars per share)		$ 33.54
Shares		264,694
Weighted-Average Remaining Contractual Life		1 year 146 days
Exercisable Shares		264,694
$33.54 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Price (in Dollars per share)		$ 36.90
Shares		218,540
Weighted-Average Remaining Contractual Life		2 years 36 days
Exercisable Shares		218,540
$37.00 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Price (in Dollars per share)		$ 36.24
Shares		410,730
Weighted-Average Remaining Contractual Life		2 years 36 days
Exercisable Shares		410,730
$38.38 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Price (in Dollars per share)		$ 38.26
Shares		12,000
Weighted-Average Remaining Contractual Life		2 years 109 days
Exercisable Shares		12,000
$36.90 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Price (in Dollars per share)		$ 23.37
Shares		630,580
Weighted-Average Remaining Contractual Life		4 years 73 days
Exercisable Shares		630,580
$36.24 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Shares		2,812,874
Weighted-Average Remaining Contractual Life		1 year 328 days
Exercisable Shares		2,812,874