Available-For-Sale Securities (Tables)

9 Months Ended

Sep. 30, 2014

Available-for-sale Securities [Abstract]

Schedule Of The Available-For-Sale Securities Reconciliation

The following tables are a summary of the available-for-sale securities portfolio as of the dates shown:



	September 30, 2014
(Dollars in thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
U.S. Treasury	$	388,873	$	372	$	(10,984	)	$	378,261
U.S. Government agencies	771,255		3,866		(35,369		)	739,752
Municipal	184,015		4,969		(1,881		)	187,103
Corporate notes:
Financial issuers	129,259		2,252		(1,208		)	130,303
Other	3,773		79		—			3,852
Mortgage-backed: ⁽¹⁾
Mortgage-backed securities	246,354		4,303		(8,938		)	241,719
Collateralized mortgage obligations	49,909		357		(763		)	49,503
Equity securities	47,595		4,958		(398		)	52,155
Total available-for-sale securities	$	1,821,033	$	21,156	$	(59,541	)	$	1,782,648



	December 31, 2013
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
(Dollars in thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
U.S. Treasury	$	354,262	$	141	$	(18,308	)	$	336,095
U.S. Government agencies	950,086		1,680		(56,078		)	895,688
Municipal	154,463		2,551		(4,298		)	152,716
Corporate notes:
Financial issuers	129,362		1,993		(2,411		)	128,944
Other	5,994		105		(5		)	6,094
Mortgage-backed: ⁽¹⁾
Mortgage-backed securities	562,708		3,537		(18,047		)	548,198
Collateralized mortgage obligations	57,711		258		(942		)	57,027
Equity securities	50,532		1,493		(497		)	51,528
Total available-for-sale securities	$	2,265,118	$	11,758	$	(100,586	)	$	2,176,290



	September 30, 2013
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
(Dollars in thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
U.S. Treasury	$	225,190	$	150	$	(14,438	)	$	210,902
U.S. Government agencies	954,050		2,213		(43,574		)	912,689
Municipal	152,010		1,983		(3,346		)	150,647
Corporate notes:
Financial issuers	132,320		2,252		(2,513		)	132,059
Other	7,011		126		(15		)	7,122
Mortgage-backed: ⁽¹⁾
Mortgage-backed securities	268,166		4,157		(12,861		)	259,462
Collateralized mortgage obligations	60,001		458		(728		)	59,731
Equity securities	53,837		1,097		(5,663		)	49,271
Total available-for-sale securities	$	1,852,585	$	12,436	$	(83,138	)	$	1,781,883


(1)	Consisting entirely of residential mortgage-backed securities, none of which are subprime.

Available-For-Sale Securities, Continuous Unrealized Loss Position, Fair Value

The following table presents the portion of the Company’s available-for-sale securities portfolio which has gross unrealized losses, reflecting the length of time that individual securities have been in a continuous unrealized loss position at September 30, 2014:



	Continuous unrealized losses existing for less than 12 months					Continuous unrealized losses existing for greater than 12 months					Total
(Dollars in thousands)	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses			Fair Value		Unrealized Losses
U.S. Treasury	$	10,006	$	(3	)	$	189,172	$	(10,981	)	$	199,178	$	(10,984	)
U.S. Government agencies	13,557		(78		)	447,369		(35,291		)	460,926		(35,369		)
Municipal	9,029		(113		)	47,937		(1,768		)	56,966		(1,881		)
Corporate notes:
Financial issuers	1,318		(3		)	57,982		(1,205		)	59,300		(1,208		)
Other	—		—			—		—			—		—
Mortgage-backed:
Mortgage-backed securities	14,619		(3		)	141,358		(8,935		)	155,977		(8,938		)
Collateralized mortgage obligations	16,475		(150		)	13,728		(613		)	30,203		(763		)
Equity securities	—		—			10,399		(398		)	10,399		(398		)
Total	$	65,004	$	(350	)	$	907,945	$	(59,191	)	$	972,949	$	(59,541	)

Schedule Of Realized Gain (Loss)

The following table provides information as to the amount of gross gains and gross losses realized and proceeds received through the sales of available-for-sale investment securities:



	Three months ended						Nine months ended
(Dollars in thousands)	September 30, 2014			September 30, 2013			September 30, 2014			September 30, 2013
Realized gains	$	179		$	118		$	333		$	434
Realized losses	(332		)	(43		)	(855		)	(106		)
Net realized (losses) gains	$	(153	)	$	75		$	(522	)	$	328
Other than temporary impairment charges	—			—			—			—
(Losses) gains on available-for-sale securities, net	$	(153	)	$	75		$	(522	)	$	328
Proceeds from sales of available-for-sale securities	$	382,552		$	45,078		$	578,594		$	129,537

Investments Classified by Contractual Maturity Date

The amortized cost and fair value of securities as of September 30, 2014, December 31, 2013 and September 30, 2013, by contractual maturity, are shown in the following table. Contractual maturities may differ from actual maturities as borrowers may have the right to call or repay obligations with or without call or prepayment penalties. Mortgage-backed securities are not included in the maturity categories in the following maturity summary as actual maturities may differ from contractual maturities because the underlying mortgages may be called or prepaid without penalties:



	September 30, 2014				December 31, 2013				September 30, 2013
(Dollars in thousands)	Amortized Cost		Fair Value		Amortized Cost		Fair Value		Amortized Cost		Fair Value
Due in one year or less	$	216,244	$	216,582	$	268,847	$	269,168	$	285,746	$	286,066
Due in one to five years	309,914		310,917		358,108		358,357		316,076		316,474
Due in five to ten years	327,505		317,654		350,372		330,020		344,742		328,895
Due after ten years	623,512		594,118		616,840		561,992		524,017		481,984
Mortgage-backed	296,263		291,222		620,419		605,225		328,167		319,193
Equity securities	47,595		52,155		50,532		51,528		53,837		49,271
Total available-for-sale securities	$	1,821,033	$	1,782,648	$	2,265,118	$	2,176,290	$	1,852,585	$	1,781,883