Employee Benefits (Tables)

12 Months Ended

Dec. 31, 2012

Employee Benefits [Abstract]

Fair value of plan assets and major categories

The fair value of plan assets and major categories as of December 31, 2012, is as follows:

Asset Category	Percent			Total		Level 1		Level 2		Level 3
	(dollars in thousands)
Collective funds		52.5	%	$	12,593	$	767	$	11,826	$	—
Equity securities		24.6	%		5,892		5,892		—		—
Mutual funds		14.1	%		3,370		3,086		284		—
Hedge funds		7.0	%		1,691		—		—		1,691
Short-term investments		1.8	%		437		62		375		—
		100.0	%	$	23,983	$	9,807	$	12,485	$	1,691

The fair value of plan assets and major categories as of December 31, 2011, is as follows:

Asset Category	Percent			Total		Level 1		Level 2		Level 3
	(dollars in thousands)
Collective funds		51.1	%	$	10,491	$	6,657	$	3,834	$	—
Equity securities		24.1	%		4,934		4,934		—		—
Mutual funds		14.2	%		2,918		2,918		—		—
Hedge funds		7.4	%		1,522		—		—		1,522
Short-term investments		3.2	%		652		—		652		—
		100.0	%	$	20,517	$	14,509	$	4,486	$	1,522

Changes in Level 3 securities

The changes in Level 3 securities are shown in the table below:

Year Ended December 31,	2012		2011
	(dollars in thousands)
Balance at beginning of year	$	1,522	$	1,431
Purchases		152		—
Actual return – assets still being held		17		91
Balance at end of year	$	1,691	$	1,522

Components of Net Periodic Benefit Cost

	Defined Benefit Pension Plan						Supplemental Insurance/ Retirement Plan
	2012			2011			2012			2011
	(dollars in thousands)
Change projected in benefit obligation
Benefit obligation at beginning of year	$	28,784		$	25,793		$	21,097		$	16,853
Service cost		1,097			843			1,425			680
Interest cost		1,295			1,419			923			932
Actuarial (gain)/loss		1,401			1,390			3,482			3,678
Benefits paid		(667	)		(661	)		(1,092	)		(1,046	)
Projected benefit obligation at end of year	$	31,910		$	28,784		$	25,835		$	21,097
Change in plan assets
Fair value of plan assets at beginning of year	$	20,517		$	19,931
Actual (loss) return on plan assets		2,333			(28	)
Employer contributions		1,800			1,275
Benefits paid		(667	)		(661	)
Fair value of plan assets at end of year	$	23,983		$	20,517
(Unfunded) Funded status	$	(7,927	)	$	(8,267	)	$	(25,835	)	$	(21,097	)
Accumulated benefit obligation	$	31,773		$	28,173		$	22,181		$	18,567
Weighted-average assumptions as of December 31
Discount rate — Liability		4.00	%		4.50	%		4.00	%		4.50	%
Discount rate — Expense		4.50	%		5.50	%		4.50	%		5.50	%
Expected return on plan assets		8.00	%		8.00	%		NA			NA
Rate of compensation increase		4.00	%		4.00	%		4.00	%		4.00	%
Components of net periodic benefit cost
Service cost	$	1,097		$	843		$	1,425		$	680
Interest cost		1,295			1,419			923			932
Expected return on plan assets		(1,641	)		(1,595	)		—			—
Recognized prior service cost		(104	)		(104	)		114			111
Recognized net losses		735			494			336			131
Net periodic cost	$	1,382		$	1,057		$	2,798		$	1,854
Other changes in plan assets and benefit obligations recognized in other comprehensive income
Amortization of prior service cost	$	104		$	104		$	(114	)	$	(111	)
Net (gain) loss		(25	)		2,519			3,098			3,546
Total recognized in other comprehensive income		79			2,623			2,984			3,435
Total recognized in net periodic benefit cost and other comprehensive income	$	1,461		$	3,680		$	5,782		$	5,289

Summary of Defined Pension Plan And Supplemental Insurance Retirement Plan

				December 31, 2012									December 31, 2011
	Supplemental									Supplemental
	Plan			Plan			Total			Plan			Plan			Total
	(dollars in thousands)
Prior service cost	$	620		$	(1,105	)	$	(485	)	$	724		$	(1,219	)	$	(495	)
Net actuarial loss		(10,317	)		(10,302	)		(20,619	)		(10,342	)		(7,204	)		(17,546	)
Total	$	(9,697	)	$	(11,407	)	$	(21,104	)	$	(9,618	)	$	(8,423	)	$	(18,041	)

Summary of accumulated other comprehensive loss expected to be recognized

The following table summarizes the amounts included in Accumulated Other Comprehensive Loss at December 31, 2012, expected to be recognized as components of net periodic benefit cost in the next year:

	Plan			Supplemental Plan
Amortization of prior service cost to be recognized in 2013	$	(104	)	$	114
Amortization of loss to be recognized in 2013		630			515