Investment Securities (Tables)

12 Months Ended

Dec. 31, 2013

Investments, Debt and Equity Securities [Abstract]

Schedule of marketable securities

Investment securities at December 31, 2012 were as follows:

(In thousands)	Amortized Cost		Gross Unrealized/Unrecognized Holding Gains		Gross Unrealized/Unrecognized Holding Losses		Estimated Fair Value
2012:
Securities Available-for-Sale
Obligations of U.S. Treasury and other U.S. Government sponsored entities	$	695,655	$	1,352	$	1,280	$	695,727
Obligations of states and political subdivisions	984		19		—		1,003
U.S. Government sponsored entities’ asset-backed securities	401,882		14,067		447		415,502
Other equity securities	1,137		1,085		—		2,222
Total	$	1,099,658	$	16,523	$	1,727	$	1,114,454
2012:
Securities Held-to-Maturity
Obligations of states and political subdivisions	$	570	$	2	$	—	$	572
U.S. Government sponsored entities’ asset-backed securities	400,820		9,351		38		410,133
Total	$	401,390	$	9,353	$	38	$	410,705

Investment securities at December 31, 2013 were as follows:

(In thousands)	Amortized Cost		Gross Unrealized/Unrecognized Holding Gains		Gross Unrealized/Unrecognized Holding Losses		Estimated Fair Value
2013:
Securities Available-for-Sale
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
2013:
Securities Held-to-Maturity
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 investments

The following table provides detail on investment securities with unrealized losses aggregated by investment category and length of time the individual securities had been in a continuous loss position at December 31, 2012:

	Less than 12 Months				12 Months or Longer				Total
(In thousands)	Fair Value		Unrealized Losses		Fair Value		Unrealized Losses		Fair Value		Unrealized Losses
2012:
Securities Available-for-Sale
Obligations of U.S. Treasury and other U.S. Government sponsored entities	177,470		1,280		—		—		177,470		1,280
U.S. Government sponsored entities' asset-backed securities	123,631		447		—		—		123,631		447
Total	301,101		1,727		—		—		301,101		1,727
2012:
Securities Held-to-Maturity
U.S. Government sponsored entities' asset-backed securities	$	10,120	$	38	$	—	$	—	$	10,120	$	38

The following table provides detail on investment securities with unrealized losses aggregated by investment category and length of time the individual securities had been in a continuous loss position at December 31, 2013:

	Less than 12 Months				12 Months or Longer				Total
(In thousands)	Fair Value		Unrealized Losses		Fair Value		Unrealized Losses		Fair Value		Unrealized Losses
2013:
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
2013:
Securities Held-to-Maturity
U.S. Government sponsored entities’ asset-backed securities	$	5,781	$	42	$	—	$	—	$	5,781	$	42

Schedule of contractual maturity of debt securities

The amortized cost and estimated fair value of investments in debt securities at December 31, 2013, 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.

(In thousands)	Amortized Cost		Estimated Fair Value		Weighted Average Yield
Securities Available-for-Sale
U.S. Treasury and other U.S. Government sponsored entities’ notes:
Due one through five years	50,000		46,800		2.00	%
Due five through ten years	396,882		367,580		2.43	%
Due in over ten years	123,750		110,756		1.74	%
Total	$	570,632	$	525,136	2.24	%
U.S. Government sponsored entities’ asset-backed securities:
Total	$	650,391	$	648,471	2.47	%
Securities Held-to-Maturity
Obligations of states and political subdivisions:
Due within one year	$	240	$	241	4.46	%
Total	$	240	$	241	4.46	%
U.S. Government sponsored entities’ asset-backed securities:
Total	$	181,821	$	187,161	3.69	%