8. Postretirement Benefits Other than Pensions

The Company sponsors an unfunded defined benefit postretirement health care plan for certain employees and contributes toward the cost of health insurance benefits. In order to be eligible for these postretirement benefits, an employee must retire after attainment of age 55 and completion of 15 years of service, or attainment of age 65 and completion of 10 years of service. The Company’s Benefits Trust Committee determines retiree premiums.

The following table reconciles the change in benefit obligation of the postretirement plans to the accrued postretirement liability as reflected in other liabilities in the accompanying consolidated balance sheets at December 31 (amounts in thousands):


	2015			2014
Benefit obligation at beginning of year	$	6,692		$	5,848
Interest cost		127			221
Actuarial (gain) loss		(2,836	)		939
Benefits paid		(424	)		(316	)

Benefit obligation at end of year	$	3,559		$	6,692

Net postretirement benefit income reflected in the accompanying consolidated statements of operations included the following components for the years ended December 31 (amounts in thousands):


	2015			2014			2013
Interest cost	$	127		$	221		$	194
Amortization of net actuarial loss		255			445			477
Amortization of prior service credit		(1,314	)		(1,314	)		(1,331	)

Net postretirement benefit income	$	(932	)	$	(648	)	$	(660	)

The assumptions used to determine the benefit obligation at December 31 are as follows:


	2015	2014	2013
Discount rate	3.57%	3.32%	3.94%
Measurement date	12/31/2015	12/31/2014	12/31/2013

The weighted-average assumptions used to determine the net postretirement benefit expense for years ended December 31 are as follows:


	2015	2014	2013
Discount rate	3.32%	3.94%	3.08%
Measurement date	12/31/2015	12/31/2014	12/31/2013

The Company expects to contribute $0.4 million to the plan in 2016. Based on the Company’s assumptions discussed above, the Company expects to make the following estimated future benefit payments under the plan during the years ending December 31 (amounts in thousands):


2016	$	368
2017		353
2018		330
2019		316
2020		296
2021-2025		1,218

The net gain, amortization of net loss, and amortization of prior service credit recognized in other comprehensive income for 2015 was $2.8 million, $0.3 million, and $1.3 million, respectively. Included in accumulated other comprehensive loss at December 31, 2015 are the following amounts that have not yet been recognized in net postretirement benefit expense: unrecognized actuarial losses of $3.7 million ($2.3 million net of tax) and unrecognized prior service credits of $15.1 million ($9.2 million net of tax). The net loss, amortization of net loss, and amortization of prior service credit recognized in other comprehensive income for 2014 was $0.9 million, $0.4 million, and $1.3 million, respectively. Included in accumulated other comprehensive loss at December 31, 2014 are the following amounts that have not yet been recognized in net postretirement benefit expense: unrecognized actuarial losses of $6.8 million ($4.1 million net of tax) and unrecognized prior service credits of $16.4 million ($9.9 million net of tax). The net loss, amortization of net loss, and amortization of prior service credit recognized in other comprehensive income for 2013 was $0.3 million, $0.5 million, and $1.3 million, respectively.

The Company amended the plans effective December 31, 2001 such that only retirees currently receiving benefits under the plans and active employees whose age plus years of service total at least 60 and who have at least 10 years of service as of December 31, 2001 remain eligible.