Note 9 - Deposits (Tables)

12 Months Ended

Dec. 31, 2014

Disclosure Text Block [Abstract]

Summary of Deposits [Table Text Block]

	As of December 31,
	2014		2013
	(In thousands)
Demand	$	1,664,914	$	1,441,858
NOW accounts		778,691		683,873
Money market accounts		1,538,187		1,286,338
Saving accounts		533,940		499,520
Time deposits under $100,000		1,162,547		931,204
Time deposits of $100,000 or more		3,105,181		3,138,512
Total	$	8,783,460	$	7,981,305

Schedule of Maturities for Time Deposits [Table Text Block]

	Expected Maturity Date at December 31,
	2015		2016		2017		2018		2019		Thereafter		Total
	(In thousands)
Time deposits, $100,000 and over	$	2,601,143	$	163,048	$	238,333	$	61,992	$	40,665	$	-	$	3,105,181
Other time deposits		772,529		162,465		109,302		116,420		1,820		11		1,162,547
	$	3,373,672	$	325,513	$	347,635	$	178,412	$	42,485	$	11	$	4,267,728

Summary of Interest Expense on Deposits [Table Text Block]

	Year Ended December 31,
	2014		2013		2012
	(In thousands)
Interest bearing demand	$	1,229	$	1,017	$	792
Money market accounts		8,627		7,034		5,938
Saving accounts		802		374		365
Time deposits		35,111		31,964		40,278
Total	$	45,769	$	40,389	$	47,373