Note 16 - Share-Based and Other Compensation Plans (Officer LTI Plan - Cash Settled) (Details) (Officer LTI Plan Cash Based [Member], Cash Settled [Member], USD $) In Millions, unless otherwise specified	1 Months Ended	12 Months Ended
	Feb. 28, 2011	Dec. 31, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Cash used to settle awards	8.4
Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Cash payout range amount as percentage of target award	147.00%	0.00%
Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Cash payout range amount as percentage of target award	172.00%	200.00%