Note 16 - Stockholders' Equity (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2013
Stockholders' Equity Note [Abstract]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	$ 1,538,362,000		$ 1,538,362,000		$ 1,458,971,000
Increase (Decrease) in Total Equity			79,400,000
Percentage Change in Total Equity			5.40%
Net Income (Loss) Attributable to Parent	35,084,000	29,916,000	66,343,000	58,763,000
Other Comprehensive Income (Loss), Net of Tax	13,194,000	(38,550,000)	20,833,000	(15,538,000)
Dividends, Common Stock, Cash			$ 9,600,000