Investment Securities (Tables)

12 Months Ended

Dec. 31, 2011

Investment Securities [Abstract]

Schedule Of Investment Securities

Amortized			Gross Unrealized			Gross Unrealized			Estimated
(In thousands)	Cost			Holding Gains			Holding Losses			Fair Value
2011:
Securities Available-for-Sale
Obligations of U.S. Treasury and other U.S. Government sponsored entities	$	370,043		$	1,614		$	-		$	371,657
Obligations of states and political subdivisions		2,616			44			-			2,660
U.S. Government sponsored entities' asset-backed securities		427,300			16,995			-			444,295
Other equity securities		1,188			877			(32	)		2,033
Total	$	801,147		$	19,530		$	(32	)	$	820,645
2011:
Securities Held-to-Maturity
Obligations of states and political subdivisions	$	1,992		$	5		$	-		$	1,997
U.S. Government sponsored entities' asset-backed securities		818,232			14,377			(32	)		832,577
Total	$	820,224		$	14,382		$	(32	)	$	834,574

Amortized			Gross Unrealized			Gross Unrealized			Estimated
(In thousands)	Cost			Holding Gains			Holding Losses			Fair Value
2010:
Securities Available-for-Sale
Obligations of U.S. Treasury and other U.S. Government sponsored entities	$	272,301		$	2,968		$	1,956		$	273,313
Obligations of states and political subdivisions		10,815			281			52			11,044
U.S. Government sponsored entities' asset-backed securities		990,204			30,633			9,425			1,011,412
Other equity securities		938			858			43			1,753
Total	$	1,274,258		$	34,740		$	11,476		$	1,297,522
2010:
Securities Held-to-Maturity
Obligations of states and political subdivisions	$	3,167		$	7		$	—		$	3,174
U.S. Government sponsored entities' asset-backed securities		670,403			17,157			4,620			682,940
Total	$	673,570		$	17,164		$	4,620		$	686,114

Schedule Of Unrealized Loss On Securities

Less than					12 Months
	12 Months					or Longer				Total
			Unrealized					Unrealized				Unrealized
(In thousands)	Fair Value		Losses			Fair Value		Losses		Fair Value		Losses
2011:
Securities Available-for-Sale
Other equity securities	$	-	$	-		$	80	$	32	$	80	$	32
2011:
Securities Held-to-Maturity
U.S. Government sponsored entities' asset-backed securities	$	-	$	-		$	38,775	$	32	$	38,775	$	32

Less than					12 Months
	12 Months					or Longer				Total
			Unrealized					Unrealized				Unrealized
(In thousands)	Fair Value		Losses			Fair Value		Losses		Fair Value		Losses
2010:
Securities Available-for-Sale
Obligations of U.S. Treasury and other U.S. Government sponsored entities	$	74,379	$	1,956		$	—	$	—	$	74,379	$	1,956
Obligations of states and political subdivisions		1,459		52			—		—		1,459		52
U.S. Government sponsored entities' asset-backed securities		418,156		9,425			—		—		418,156		9,425
Other equity securities		74		29			221		14		295		43
Total	$	494,068	$	11,462		$	221	$	14	$	494,289	$	11,476
2010:
Securities Held-to-Maturity
U.S. Government sponsored entities' asset-backed securities	$	297,584	$	4,620		$	—	$	—	$	297,584	$	4,620

Amortized Cost And Estimated Fair Value Of Investments In Debt Securities By Contractual Maturity

	Amortized		Estimated
(In thousands)	Cost		Fair Value
Securities Available-for-Sale
U.S. Treasury and sponsored entities' notes:
Due within one year	$	370,043	$	371,657
Total	$	370,043	$	371,657
Obligations of states and political subdivisions:
Due within one year	$	2,121	$	2,133
Due one through five years		495		527
Total	$	2,616	$	2,660
U.S. Government sponsored entities' asset-backed securities:
Total	$	427,300	$	444,295
Securities Held-to-Maturity
Obligations of states and political subdivisions:
Due within one year	$	1,992	$	1,997
Total	$	1,992	$	1,997
U.S. Government sponsored entities' asset-backed securities:
Total	$	818,232	$	832,577