Securities (Tables)

6 Months Ended

Jun. 30, 2013

Amortized cost and fair value of securities

The amortized cost and fair value of securities at June 30, 2013 are summarized as follows:

Available-for-Sale

(in thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
U.S. Treasury and government agencies	$	71,075	$	288	$	(3,755	)	$	67,608
State and political subdivisions		115,719		2,429		(2,206	)		115,942
U.S. government sponsored agency mortgage-backed securities		449,999		6,291		(5,954	)		450,336
Total debt securities		636,793		9,008		(11,915	)		633,886
Marketable equity securities		55,000		0		(1,524	)		53,476
Total available-for-sale securities	$	691,793	$	9,008	$	(13,439	)	$	687,362

Held-to-Maturity

(in thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
U.S. Treasury and government agencies	$	480	$	0	$	(42	)	$	438
State and political subdivisions		1,182		1		0			1,183
Total held-to-maturity securities	$	1,662	$	1	$	(42	)	$	1,621

The amortized cost and fair value of securities as of December 31, 2012 are summarized as follows:

Available-for-Sale

(in thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
U.S. Treasury and government agencies	$	60,625	$	463	$	(173	)	$	60,915
State and political subdivisions		107,987		5,369		(135	)		113,221
U.S. government sponsored agency mortgage-backed securities		370,246		13,347		(12	)		383,581
Total debt securities		538,858		19,179		(320	)		557,717
Marketable equity securities		45,000		791		(165	)		45,626
Total available-for-sale securities	$	583,858	$	19,970	$	(485	)	$	603,343

Held-to-Maturity

(in thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
U.S. Treasury and government agencies	$	480	$	0	$	(4	)	$	476
State and political subdivisions		1,182		1		0			1,183
Total held-to-maturity securities	$	1,662	$	1	$	(4	)	$	1,659

Amortized cost and fair value of securities by contractual maturity

The amortized cost and fair value of securities at June 30, 2013 by contractual maturity are shown below. Expected maturities will differ from contractual maturities because issuers may have the right to call or prepay obligations with or without call or prepayment penalties.

	Available-for-Sale				Held-to-Maturity
(in thousands)	Amortized Cost		Fair Value		Amortized Cost		Fair Value
Due in one year or less	$	5,785	$	5,823	$	0	$	0
Due after one through five years		22,121		22,811		0		0
Due after five through ten years		121,095		117,651		1,182		1,183
Due after ten years		37,793		37,265		480		438
U.S. government sponsored agency mortgage-backed securities		449,999		450,336		0		0
Total debt securities		636,793		633,886		1,662		1,621
Marketable equity securities		55,000		53,476		0		0
Total securities	$	691,793	$	687,362	$	1,662	$	1,621

Available for sale securities and Held-to-maturity securities, continuous unrealized loss position

The following tables provide the amortized cost, gross unrealized losses, and fair market value, aggregated by investment category and length of time the individual securities have been in a continuous unrealized loss position as of June 30, 2013 that are not deemed to be other-than-temporarily impaired.

Available-for-Sale

(in thousands)	Amortized Cost		Gross Unrealized Losses			Fair Value
Less Than 12 Months
U.S. Treasury and government agencies	$	60,516	$	(3,755	)	$	56,761
State and political subdivisions		57,652		(2,183	)		55,469
U.S. government sponsored agency mortgage-backed securities		261,947		(5,954	)		255,993
Total debt securities		380,115		(11,892	)		368,223
Marketable equity securities		55,000		(1,524	)		53,476
Total <12 months temporarily impaired AFS securities		435,115		(13,416	)		421,699

12 Months or More
State and political subdivisions		1,097		(23	)		1,074
Total ≥12 months temporarily impaired AFS securities		1,097		(23	)		1,074

Total
U.S. Treasury and government agencies		60,516		(3,755	)		56,761
State and political subdivisions		58,749		(2,206	)		56,543
U.S. government sponsored agency mortgage-backed securities		261,947		(5,954	)		255,993
Total debt securities		381,212		(11,915	)		369,297
Marketable equity securities		55,000		(1,524	)		53,476
Total temporarily impaired AFS securities	$	436,215	$	(13,439	)	$	422,773

Held-to-Maturity

(in thousands)	Amortized Cost		Gross Unrealized Losses			Fair Value
Less Than 12 Months
U.S. Treasury and government agencies	$	480	$	(42	)	$	438
Total temporarily impaired HTM securities	$	480	$	(42	)	$	438

The analysis performed as of December 31, 2012 indicated that all impairment was considered temporary, market driven, and not credit-related. The following tables provide the amortized cost, gross unrealized losses, and fair market value, aggregated by investment category and length of time the individual securities have been in a continuous unrealized loss position as of December 31, 2012 that are not deemed to be other-than-temporarily impaired.

Available-for-Sale

(in thousands)	Amortized Cost		Gross Unrealized Losses			Fair Value
Less Than 12 Months
U.S. Treasury and government agencies	$	47,576	$	(173	)	$	47,403
State and political subdivisions		11,126		(135	)		10,991
U.S. government sponsored agency mortgage-backed securities		10,563		(12	)		10,551
Total debt securities		69,265		(320	)		68,945
Marketable equity securities		20,000		(165	)		19,835
Total <12 months temporarily impaired AFS securities		89,265		(485	)		88,780

Total
U.S. Treasury and government agencies		47,576		(173	)		47,403
State and political subdivisions		11,126		(135	)		10,991
U.S. government sponsored agency mortgage-backed securities		10,563		(12	)		10,551
Total debt securities		69,265		(320	)		68,945
Marketable equity securities		20,000		(165	)		19,835
Total temporarily impaired AFS securities	$	89,265	$	(485	)	$	88,780

Held-to-Maturity

(in thousands)	Amortized Cost		Gross Unrealized Losses			Fair Value
Less Than 12 Months
U.S. Treasury and government agencies	$	480	$	(4	)	$	476
Total temporarily impaired HTM securities	$	480	$	(4	)	$	476