Note 11 - Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2013

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]

March 31, 2013	Fair Value Measurements Using						Total at
	Level 1		Level 2		Level 3		Fair Value
	(In thousands)
Assets
Securities available-for-sale
U.S. Treasury securities	$	360,114	$	-	$	-	$	360,114
State and municipal securities		-		63,458		-		63,458
Mortgage-backed securities		-		1,490,598		-		1,490,598
Collateralized mortgage obligations		-		8,946		-		8,946
Asset-backed securities		-		132		-		132
Corporate debt securities		-		256,457		-		256,457
Mutual funds		6,035		-		-		6,035
Preferred stock of government sponsored entities		-		4,556		-		4,556
Total securities available-for-sale		366,149		1,824,147		-		2,190,296
Trading securities		-		4,758		-		4,758
Warrants		-		-		98		98
Option contracts		-		8		-		8
Foreign exchange contracts		-		2,987		-		2,987
Total assets	$	366,149	$	1,831,900	$	98	$	2,198,147
Liabilities
Option contracts	$	-	$	2	$	-	$	2
Foreign exchange contracts		-		1,850		-		1,850
Total liabilities	$	-	$	1,852	$	-	$	1,852

December 31, 2012	Fair Value Measurements Using						Total at
	Level 1		Level 2		Level 3		Fair Value
	(In thousands)
Assets
Securities available-for-sale
U.S. Treasury securities	$	509,971	$	-	$	-	$	509,971
Mortgage-backed securities		-		416,694		-		416,694
Collateralized mortgage obligations		-		10,168		-		10,168
Asset-backed securities		-		141		-		141
Corporate debt securities		-		335,977		-		335,977
Mutual funds		6,079		-		-		6,079
Preferred stock of government sponsored entities		-		2,335		-		2,335
Trust preferred securities		10,115		-		-		10,115
Other equity securities		-		-		-		-
Total securities available-for-sale		526,165		765,315		-		1,291,480
Trading securities		-		4,703		-		4,703
Warrants		-		-		104		104
Option contracts		-		-		-		-
Foreign exchange contracts		-		2,924		-		2,924
Total assets	$	526,165	$	772,942	$	104	$	1,299,211
Liabilities
Option contracts	$	-	$	2	$	-	$	2
Foreign exchange contracts		-		1,586		-		1,586
Total liabilities	$	-	$	1,588	$	-	$	1,588

Fair Value Measurements, Nonrecurring [Table Text Block]

	March 31, 2013								Total Losses/(gains)
	Fair Value Measurements Using						Total at		Three months ended
	Level 1		Level 2		Level 3		Fair Value		March 31, 2013			March 31, 2012
	(In thousands)
Assets
Impaired loans by type:
Commercial loans	$	-	$	-	$	5,463	$	5,463	$	463		$	859
Commercial mortgage loans		-		-		23,736		23,736		41			-
Construction- residential		-		-		500		500		-			-
Construction- other		-		-		46,162		46,162		-			-
Real estate loans		-		-		-		-		-			1,357
Residential mortgage and equity lines		-		-		13,299		13,299		189			526
Land loans		-		-		208		208		48			-
Total impaired loans		-		-		89,368		89,368		741			2,742
Other real estate owned (1)		-		24,892		4,515		29,407		(66	)		2,824
Investments in venture capital		-		-		9,026		9,026		92			137
Equity investments		142		-		-		142		-			-
Total assets	$	142	$	24,892	$	102,909	$	127,943	$	767		$	5,703

	December 31, 2012								Total Losses
	Fair Value Measurements Using						Total at		Twelve months ended
	Level 1		Level 2		Level 3		Fair Value		December 31, 2012		December 31, 2011
	(In thousands)
Assets
Impaired loans by type:
Commercial loans	$	-	$	-	$	3,492	$	3,492	$	-	$	877
Commercial mortgage loans		-		-		11,295		11,295		440		-
Construction- residential		-		-		500		500		-		-
Construction- other		-		-		46,153		46,153		65		-
Residential mortgage and equity lines		-		-		11,206		11,206		605		820
Land loans		-		-		297		297		162		46
Total impaired loans		-		-		72,943		72,943		1,272		1,743
Other real estate owned (1)		-		27,149		4,841		31,990		10,904		7,003
Investments in venture capital		-		-		9,001		9,001		309		379
Equity investments		142		-		-		142		181		200
Total assets	$	142	$	27,149	$	86,785	$	114,076	$	12,666	$	9,325