Investment Securities (Tables)

9 Months Ended

Sep. 30, 2012

Investments, Debt and Equity Securities [Abstract]

Schedule Of Investment Securities

Investment securities at December 31, 2011, were as follows:

Securities Available-for-Sale (In thousands)	Amortized  cost		Gross unrealized holding gains		Gross unrealized holding losses		Estimated fair value
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

Securities Held-to-Maturity (In thousands)	Amortized  cost		Gross unrecognized holding gains		Gross unrecognized holding losses		Estimated fair value
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

Investment securities at September 30, 2012, were as follows:

Securities Available-for-Sale (In thousands)	Amortized Cost		Gross Unrealized Holding  Gains		Gross Unrealized Holding  Losses		Estimated  Fair Value
Obligations of U.S. Treasury and other U.S. Government sponsored entities	$	695,633	$	2,837	$	—	$	698,470
Obligations of states and political subdivisions	1,290		23		—		1,313
U.S. Government sponsored entities asset-backed securities	315,057		17,791		—		332,848
Other equity securities	1,134		1,108		3		2,239
Total	$	1,013,114	$	21,759	$	3	$	1,034,870

Securities Held-to-Maturity (In thousands)	Amortized Cost		Gross Unrecognized Holding  Gains		Gross Unrecognized Holding  Losses		Estimated Fair Value
Obligations of states and political subdivisions	$	570	$	1	$	—	$	571
U.S. Government sponsored entities asset-backed securities	552,034		13,039		45		565,028
Total	$	552,604	$	13,040	$	45	$	565,599

Schedule Of Unrealized Loss On Securities

Securities with unrealized losses at September 30, 2012, were as follows:

	Less than 12 months				12 months or longer				Total
(In thousands)	Fair value		Unrealized losses		Fair value		Unrealized losses		Fair value		Unrealized losses
Securities Available-for-Sale
Obligations of U.S. Treasury and other U.S. Government agencies	$	—	$	—	$	—	$	—	$	—	$	—
Other equity securities	$	46	$	3	$	—	$	—	$	46	$	3
Securities Held-to-Maturity
U.S. Government agencies' asset-backed securities	$	10,429	$	45	$	—	$	—	$	10,429	$	45
Total	$	10,475	$	48	$	—	$	—	$	10,475	$	48

Securities with unrealized losses at December 31, 2011, were as follows:

	Less than 12 months				12 months or longer				Total
(In thousands)	Fair value		Unrealized losses		Fair value		Unrealized losses		Fair value		Unrealized losses
Securities Available-for-Sale
Other equity securities	$	—	$	—	$	80	$	32	$	80	$	32
Securities Held-to-Maturity
U.S. Government sponsored entities asset-backed securities	$	—	$	—	$	38,775	$	32	$	38,775	$	32
Total	$	—	$	—	$	38,855	$	64	$	38,855	$	64

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

The amortized cost and estimated fair value of investments in debt securities at September 30, 2012, are shown in the following table by contractual maturity or the expected call date, except for asset-backed securities, which are shown as a single total, due to the unpredictability of the timing in principal repayments.

Securities Available-for-Sale (In thousands)	Amortized cost		Fair value
U.S. Treasury and sponsored entities notes:
Due within one year	$	695,633	$	698,470
Due one through five years	—		—
Due five through ten years	—		—
Total	$	695,633	$	698,470
Obligations of states and political subdivisions:
Due within one year	$	1,068	$	1,081
Due one through five years	222		232
	$	1,290	$	1,313
U.S. Government sponsored entities asset-backed securities:
Total	$	315,057	$	332,848

Securities Held-to-Maturity (In thousands)	Amortized cost		Fair value
Obligations of state and political subdivisions:
Due within one year	$	570	$	571
Due one through five years	—		—
Total	$	570	$	571
U.S. Government sponsored entities asset-backed securities:
Total	$	552,034	$	565,028