Retirement Arrangements (Tables)

12 Months Ended

Dec. 31, 2011

Retirement Arrangements (Tables) [Abstract]

Reconciliation of changes in SERP's benefit obligations and statement of fund status

The following tables provide a reconciliation of the changes in the SERP's benefit obligations for the periods indicated (in thousands):

		Year Ended December 31,
	2011		2010
Reconciliation of benefit obligation:
Obligation at January 1	$	4,066	$	3,287
Service cost		489		413
Interest cost		112		115
Actuarial (gain) loss		2,303		251
Settlements		(1,347)		0
Obligation at December 31	$	5,623	$	4,066

Components of net periodic benefit costs

We contributed $1,347,000 to the plan in connection with a settlement during the year ended December 31, 2011.The following table shows the components of net periodic benefit costs for the periods indicated (in thousands):

		Year Ended December 31,
	2011		2010
Service cost	$	489	$	413
Interest cost		112		115
Net actuarial (gain) loss		50		52
Net periodic benefit cost	$	651	$	580

Accumulated benefit in excess of plan assets

The following table provides information for the SERP, which has an accumulated benefit in excess of plan assets (in thousands):

		December 31,
	2011		2010
Projected benefit obligation	$	5,623	$	4,066
Accumulated benefit obligation		3,307		2,938
Fair value of assets		n/a		n/a

Weighted-average assumptions used to determine benefit obligations and net periodic benefit cost for SERP

The following table reflects the weighted-average assumptions used to determine the benefit obligations and net periodic benefit cost for the SERP:

	Benefit Obligations		Net Periodic Benefit Cost
	December 31,		Year Ended December 31,
	2011	2010	2011	2010
Discount rate	2.75%	3.50%	3.50%	3.50%
Rate of compensation increase	4.50%	4.50%	4.50%	4.50%
Expected long-term return on plan assets	n/a	n/a	n/a	n/a