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Securities (Tables)

3 Months Ended

Mar. 31, 2013

Securities [Abstract]

Summarizes securities held for investment and securities available for sale

The following table summarizes securities held for investment and securities available for sale:

		March 31, 2013
		(Dollars in thousands)
Held for investment, at cost (fair value: $16,317)		$	16,099
Available for sale, at fair value			549,391
Total		$	565,490

Summarizes amortized cost and estimated fair values of securities held for investment

The following table summarizes the amortized cost and estimated fair values of securities held for investment:

		March 31, 2013
		Amortized Cost				Gross Unrealized Gains				Gross Unrealized Losses				Estimated Fair Value
		(Dollars in thousands)
Mortgage backed securities (1)		$	740			$	56			$	—			$	796
States and political subdivisions			15,359				170				(8	)			15,521
Total		$	16,099			$	226			$	(8	)		$	16,317

Summarizes amortized cost and estimated fair values of securities available for sale

The following table summarizes the amortized cost and estimated fair values of securities available for sale:

		March 31, 2013
		Amortized Cost				Gross Unrealized Gains				Gross Unrealized Losses				Estimated Fair Value
		(Dollars in thousands)
U.S. treasury and other Federal agencies		$	459,301			$	3,233			$	(155	)		$	462,379
Mortgage backed securities (1)			17,212				764				(2	)			17,974
States and political subdivisions			52,858				2,646				(11	)			55,493
Other securities (2)			10,965				2,580				—				13,545
Total		$	540,336			$	9,223			$	(168	)		$	549,391

(1) Primarily consists of FHLMC, FNMA, GNMA and mortgage backed securities through U.S. agencies.

(2) Primarily consists of equity securities.

Maturity of securities

The maturities of securities held for investment and available for sale are summarized in the following table using contractual maturities.

		March 31, 2013
		Amortized Cost				Estimated Fair Value
		(Dollars in thousands)
Held for Investment
Contractual maturity of debt securities:
Within one year		$	4,590			$	4,627
After one year but within five years			9,898				9,999
After five years but within ten years			1,179				1,212
After ten years			432				479
Total		$	16,099			$	16,317
Available for Sale
Contractual maturity of debt securities:
Within one year		$	191,802			$	192,015
After one year but within five years			219,323				221,790
After five years but within ten years			34,426				35,851
After ten years			87,206				89,611
Total debt securities			532,757				539,267
Equity securities			7,579				10,124
Total		$	540,336			$	549,391

Company's book value of pledged securities

The following table is a summary of the Company’s book value of securities that were pledged as collateral for public funds on deposit, repurchase agreements and for other purposes as required or permitted by law:

		March 31, 2013
		(Dollars in thousands)
Book value of pledged securities		$	487,367

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 140

-Paragraph 15

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.



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