Note 17 - Share-Based and Other Compensation Plans (Awards Summary - Textual) (Details) (USD $) In Millions, except Share data, unless otherwise specified	12 Months Ended			12 Months Ended	0 Months Ended	12 Months Ended	24 Months Ended	0 Months Ended	12 Months Ended	24 Months Ended	0 Months Ended	12 Months Ended	24 Months Ended	12 Months Ended	0 Months Ended	12 Months Ended	24 Months Ended	12 Months Ended
	Dec. 31, 2012 plan	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2012 Equity Compensation Plan, 1995 and 2008 [Member] years	May 12, 2009 Equity Settled [Member] Equity Compensation Plan, 1995 and 2008 [Member]	Dec. 31, 2012 Equity Settled [Member] Equity Compensation Plan, 1995 and 2008 [Member]	May 10, 2011 Equity Settled [Member] Equity Compensation Plan, 1995 and 2008 [Member]	May 12, 2009 Phantom Stock [Member]	Dec. 31, 2012 Phantom Stock [Member]	May 10, 2011 Phantom Stock [Member]	May 12, 2009 Restricted Stock [Member]	Dec. 31, 2012 Restricted Stock [Member]	May 10, 2011 Restricted Stock [Member]	Dec. 31, 2012 Restricted Stock [Member] Equity Settled [Member] Equity Compensation Plan, 1995 and 2008 [Member]	May 12, 2009 Performance Based RSUs [Member]	Dec. 31, 2012 Performance Based RSUs [Member]	May 10, 2011 Performance Based RSUs [Member]	Dec. 31, 2012 Grants Awarded Prior to May 13 2009 [Member] Equity Compensation Plan, 1995 and 2008 [Member] months	Dec. 31, 2012 Grants Awarded Prior to May 13 2009 [Member] 1995 Equity Plan [Member]	Dec. 31, 2012 Grants Awarded From May 13 2009 and Forward [Member] Equity Compensation Plan, 1995 and 2008 [Member] Minimum [Member] days	Dec. 31, 2012 Grants Awarded From May 13 2009 and Forward [Member] Equity Compensation Plan, 1995 and 2008 [Member] Maximum [Member] years
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum contractual term for all awards				10
Number of shares of common stock authorized for issuance				6,417,000
Number of shares remaining available for grant (shares reserve)				1,329,689
Share-based Compensation, Reduction of Shares Available for Grant by Each Grant of Equity Award					1.33	1.19	1.14	1.33	1.19	1.14	1.33	1.19	1.14		1.33	1.19	1.14
Share-based Compensation Arrangement By Share-based Payment Award Number of Shares Available for Grant Excluding Adjustments				1,768,249
Share-based Compensation Arrangement by Share-based Payment Award, Vesting Percentage of Total Award, Third Anniversary				50.00%										50.00%
Share-based Compensation Arrangement by Share-based Payment Award, Vesting Percentage of Total Award, Fourth Anniversary				50.00%										50.00%
Third party minimum threshold percentage acquisition of outstanding common stock																		40.00%	20.00%
Share-based Compensation Arrangements, Number of Months (Rolling) Used For Calculation of Change in Control																		24
Percentage of Change in Members of Board of Directors Defined As Change in Control																		75.00%
Percentage of Board of Directors Who Oppose Change in Control																		75.00%
Change of control, grantee employment termination, vesting period range (in days and years)																				90	1
Change of control, estimated pre-tax accounting charge, acceleration of compensation expense		$ 7.4	$ 7.8	$ 22.4
Number of Long Term Performance Based Cash Incentive Programs	2