Investments (Tables)

3 Months Ended

Mar. 31, 2013

Investments [Abstract]

Summary of amortized cost and estimated fair value of fixed maturities

	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Estimated Fair Value
	(in thousands)
Held to Maturity
U.S. Treasury securities and obligations of U.S. government corporations and agencies	$	1,000	$	1	$	—	$	1,001
Obligations of states and political subdivisions		39,234		1,343		—		40,577
Residential mortgage-backed securities		180		13		—		193
Totals	$	40,414	$	1,357	$	—	$	41,771

	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Estimated Fair Value
	(in thousands)
Available for Sale
U.S. Treasury securities and obligations of U.S. government corporations and agencies	$	80,876	$	1,089	$	94	$	81,871
Obligations of states and political subdivisions		388,138		28,760		1,344		415,554
Corporate securities		70,599		3,080		160		73,519
Residential mortgage-backed securities		124,301		2,712		509		126,504
Fixed maturities		663,914		35,641		2,107		697,448
Equity securities		9,735		329		239		9,825
Totals	$	673,649	$	35,970	$	2,346	$	707,273

	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Estimated Fair Value
	(in thousands)
Held to Maturity
U.S. Treasury securities and obligations of U.S. government corporations and agencies	$	1,000	$	12	$	—	$	1,012
Obligations of states and political subdivisions		40,909		1,609		—		42,518
Residential mortgage-backed securities		191		15		—		206
Totals	$	42,100	$	1,636	$	—	$	43,736

	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Estimated Fair Value
	(in thousands)
Available for Sale
U.S. Treasury securities and obligations of U.S. government corporations and agencies	$	70,254	$	1,101	$	44	$	71,311
Obligations of states and political subdivisions		385,372		32,221		606		416,987
Corporate securities		73,942		3,523		109		77,356
Residential mortgage-backed securities		125,606		3,316		66		128,856
Fixed maturities		655,174		40,161		825		694,510
Equity securities		8,663		201		107		8,757
Totals	$	663,837	$	40,362	$	932	$	703,267

Summary of amortized cost and estimated fair value of fixed maturities by contractual maturity

	Amortized Cost		Estimated Fair Value
	(in thousands)
Held to maturity
Due in one year or less	$	1,501	$	1,507
Due after one year through five years		33,764		34,895
Due after five years through ten years		4,969		5,176
Due after ten years		—		—
Residential mortgage-backed securities		180		193
Total held to maturity	$	40,414	$	41,771
Available for sale
Due in one year or less	$	18,812	$	19,065
Due after one year through five years		69,953		72,469
Due after five years through ten years		197,455		209,715
Due after ten years		253,393		269,695
Residential mortgage-backed securities		124,301		126,504
Total available for sale	$	663,914	$	697,448

Summary of gross realized gains and losses from investments before applicable income taxes

	Three Months Ended March 31,
	2013		2012
	(in thousands)
Gross realized gains:
Fixed maturities	$	951	$	1,496
Equity securities		474		829
		1,425		2,325
Gross realized losses:
Fixed maturities		14		5
Equity securities		70		10
		84		15
Net realized gains	$	1,341	$	2,310

Summary of fixed maturities and equity securities with unrealized losses

	Less Than 12 Months				More Than 12 Months
	Fair Value		Unrealized Losses		Fair Value		Unrealized Losses
	(in thousands)
U.S. Treasury securities and obligations of U.S. government corporations and agencies	$	15,195	$	94	$	—	$	—
Obligations of states and political subdivisions		49,603		1,344		—		—
Corporate securities		13,744		160		—		—
Residential mortgage-backed securities		43,176		509		—		—
Equity securities		1,948		239		—		—
Totals	$	123,666	$	2,346	$	—	$	—

	Less Than 12 Months				More Than 12 Months
	Fair Value		Unrealized Losses		Fair Value		Unrealized Losses
	(in thousands)
U.S. Treasury securities and obligations of U.S. government corporations and agencies	$	12,308	$	44	$	—	$	—
Obligations of states and political subdivisions		22,134		606		—		—
Corporate securities		12,272		79		2,959		30
Residential mortgage-backed securities		22,492		66		—		—
Equity securities		2,226		107		—		—
Totals	$	71,432	$	902	$	2,959	$	30

Summary of financial information

Balance sheets:	March 31, 2013		December 31, 2012
	(in thousands)
Total assets	$	514,200	$	509,670
Total liabilities	$	436,590	$	433,490
Stockholders’ equity		77,610		76,180
Total liabilities and stockholders’ equity	$	514,200	$	509,670
	Three Months Ended March 31,
Income statements:	2013		2012
	(in thousands)
Net income	$	2,258	$	2,436