Securities (Tables)

12 Months Ended

Dec. 31, 2012

Amortized Cost and Fair Value of Available for Sale Securities

The amortized cost and fair value of securities classified as available for sale and held to maturity follow (in thousands):

Securities Available for Sale
	December 31, 2012								December 31, 2011
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value		Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
U.S. Treasury	$	150	$	8	$	—	$	158	$	150	$	14	$	—	$	164
U.S. government agencies		18,096		11		—		18,107		248,595		1,308		—		249,903
Municipal obligations		49,608		571		14		50,165		294,489		15,218		42		309,665
Mortgage-backed securities		1,715,524		58,903		21		1,774,406		2,422,891		58,150		696		2,480,345
CMOs		196,723		1,354		—		198,077		1,426,495		21,774		2,193		1,446,076
Corporate debt securities		2,250		—		—		2,250		4,517		11		34		4,494
Other equity securities		4,531		752		4		5,279		4,208		2,086		41		6,253
	$	1,986,882	$	61,599	$	39	$	2,048,442	$	4,401,345	$	98,561	$	3,006	$	4,496,900

Amortized Cost and Fair Value of Held to Maturity Securities

Securities Held to Maturity
	December 31, 2012								December 31, 2011
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value		Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
Municipal obligations	$	164,493	$	16,017	$	—	$	180,510		—		—		—		—
Mortgage-backed securities		180,397		3,429		—		183,826		—		—		—		—
CMOs		1,323,128		23,942		941		1,346,129		—		—		—		—
	$	1,668,018	$	43,388	$	941	$	1,710,465		—		—		—		—

Available For Sale Securities Unrealized Losses

The details for securities classified as available for sale with unrealized losses as of December 31, 2012 follow (in thousands):

Available for sale
	Losses < 12 months				Losses 12 months or >				Total
	Fair Value		Gross Unrealized Losses		Fair Value		Gross Unrealized Losses		Fair Value		Gross Unrealized Losses
U.S. Treasury	$	—	$	—	$	—	$	—	$	—	$	—
U.S. government agencies		—		—		—		—		—		—
Municipal obligations		5,278		14		—		—		5,278		14
Mortgage-backed securities		57,752		14		1,097		7		58,849		21
CMOs		—		—		—		—		—		—
Corporate debt securities		—		—		—		—		—		—
Equity securities		268		2		2		2		270		4
	$	63,298	$	30	$	1,099	$	9	$	64,397	$	39

The details for securities classified as available for sale with unrealized losses as of December 31, 2011 follow (in thousands):

Available for sale
	Losses < 12 months				Losses 12 months or >				Total
	Fair Value		Gross Unrealized Losses		Fair Value		Gross Unrealized Losses		Fair Value		Gross Unrealized Losses
U.S. Treasury	$	—	$	—	$	—	$	—	$	—	$	—
U.S. government agencies		—		—		—		—		—		—
Municipal obligations		18,854		42		—		—		18,854		42
Mortgage-backed securities		212,900		692		337		4		213,237		696
CMOs		296,860		2,193		—		—		296,860		2,193
Corporate debt securities		398		34		—		—		398		34
Equity securities		1,685		39		2		2		1,687		41
	$	530,697	$	3,000	$	339	$	6	$	531,036	$	3,006

Held to Maturity with Unrealized Losses

The details for securities classified as held to maturity with unrealized losses as of December 31, 2012 follow (in thousands):

Held to maturity
	Losses < 12 months				Losses 12 months or >				Total
	Fair Value		Gross Unrealized Losses		Fair Value		Gross Unrealized Losses		Fair Value		Gross Unrealized Losses
Municpal obligations	$	—	$	—	$	—	$	—	$	—	$	—
Mortgage-backed securities		—		—		—		—		—		—
CMOs		87,852		259		54,445		682		142,297		941
	$	87,852	$	259	$	54,445	$	682	$	142,297	$	941

Available for Sale Securities [Member]

Amortized Cost and Fair Value of Available for Sale Securities by Contractual Maturity

The following table presents the amortized cost and fair value of debt securities at December 31, 2012 by contractual maturity (in thousands). Actual maturities will differ from contractual maturities because of rights to call or repay obligations with or without penalties.

	Amortized Cost		Fair Value
Debt Securities Available for Sale
Due in one year or less	$	43,855	$	44,003
Due after one year through five years		241,988		244,207
Due after five years through ten years		249,802		259,924
Due after ten years		1,446,706		1,495,029
Total available for sale debt securities	$	1,982,351	$	2,043,163

Held to Maturity Securities Transferred from AFS [Member]

Amortized Cost and Fair Value of Available for Sale Securities by Contractual Maturity

	Amortized Cost		Fair Value
Debt Securities Held to Maturity
Due in one year or less	$	14,545	$	14,626
Due after one year through five years		417,869		427,022
Due after five years through ten years		94,584		104,739
Due after ten years		1,141,020		1,164,078
Total held to maturity securities	$	1,668,018	$	1,710,465