Investment Securities (Tables)

9 Months Ended

Sep. 30, 2014

Investments, Debt and Equity Securities [Abstract]

Schedule Of Investment Securities

Investment securities at September 30, 2014, were as follows:

Securities Available-for-Sale (In thousands)	Amortized Cost		Gross Unrealized/ Unrecognized Holding  Gains		Gross Unrealized/ Unrecognized Holding  Losses		Estimated  Fair Value
Obligations of U.S. Treasury and other U.S. Government sponsored entities	$	570,635	$	—	$	19,476	$	551,159
U.S. Government sponsored entities' asset-backed securities	705,603		10,544		5,926		710,221
Other equity securities	1,120		1,465		—		2,585
Total	$	1,277,358	$	12,009	$	25,402	$	1,263,965

Securities Held-to-Maturity (In thousands)	Amortized Cost		Gross Unrealized/ Unrecognized Holding  Gains		Gross Unrealized/ Unrecognized Holding  Losses		Estimated Fair Value
U.S. Government sponsored entities' asset-backed securities	150,349		3,099		462		152,986
Total	$	150,349	$	3,099	$	462	$	152,986

Investment securities at December 31, 2013, were as follows:

Securities Available-for-Sale (In thousands)	Amortized Cost		Gross Unrealized/ Unrecognized Holding  Gains		Gross Unrealized/ Unrecognized Holding  Losses		Estimated  Fair Value
Obligations of U.S. Treasury and other U.S. Government sponsored entities	$	570,632	$	—	$	45,496	$	525,136
U.S. Government sponsored entities' asset-backed securities	650,391		8,070		9,990		648,471
Other equity securities	1,120		1,539		—		2,659
Total	$	1,222,143	$	9,609	$	55,486	$	1,176,266

Securities Held-to-Maturity (In thousands)	Amortized Cost		Gross Unrealized/ Unrecognized Holding  Gains		Gross Unrealized/ Unrecognized Holding  Losses		Estimated Fair Value
Obligations of states and political subdivisions	$	240	$	1	$	—	$	241
U.S. Government sponsored entities' asset-backed securities	181,821		5,382		42		187,161
Total	$	182,061	$	5,383	$	42	$	187,402

Schedule Of Unrealized Loss On Securities

Securities with unrealized losses at September 30, 2014, were as follows:

	Unrealized loss position for less than 12 months				Unrealized loss position for 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	$	—	$	—	$	551,159	$	19,476	$	551,159	$	19,476
U.S. Government agencies' asset-backed securities	$	—	$	—	$	189,116	$	5,926	$	189,116	$	5,926
Total	$	—	$	—	$	740,275	$	25,402	$	740,275	$	25,402
Securities Held-to-Maturity
U.S. Government sponsored entities' asset-backed securities	$	65,552	$	430	$	3,342	$	32	$	68,894	$	462

Securities with unrealized losses at December 31, 2013, were as follows:

	Unrealized loss position for less than 12 months				Unrealized loss position for 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 sponsored entities	$	377,626	$	29,256	$	147,510	$	16,240	$	525,136	$	45,496
U.S. Government sponsored entities' asset-backed securities	404,035		8,917		21,572		1,073		425,607		9,990
Total	$	781,661	$	38,173	$	169,082	$	17,313	$	950,743	$	55,486
Securities Held-to-Maturity
U.S. Government sponsored entities' asset-backed securities	$	5,781	$	42	$	—	$	—	$	5,781	$	42

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, 2014, 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 of principal repayments.

Securities Available-for-Sale (In thousands)	Amortized cost		Fair value		Weighted Avg Yield
U.S. Treasury and sponsored entities' obligations:
Due one through five years	173,750		168,675		1.82	%
Due five through ten years	396,885		382,484		2.43	%
Total	$	570,635	$	551,159	2.24	%
U.S. Government sponsored entities' asset-backed securities:	$	705,603	$	710,221	2.41	%

Securities Held-to-Maturity (In thousands)	Amortized cost		Fair value		Weighted Avg Yield
U.S. Government sponsored entities' asset-backed securities	$	150,349	$	152,986	3.60	%