BENEFIT PLANS

The following table summarizes key information related to the Company’s pension plans and retirement agreements (in thousands):



	Three Months Ended March 31, 2018			Year Ended December 31, 2017
Change in Projected Benefit Obligation
Projected benefit obligation, beginning of period	$	32,820		$	28,624
Service cost	300			1,001
Interest cost	310			1,228
Actuarial loss	—			2,474
Benefits paid	(82		)	(507		)
Projected benefit obligation, end of period	$	33,348		$	32,820
Change in Plan Assets
Plan assets at fair value, beginning of period	$	—		$	—
Company contributions	82			507
Benefits paid	(82		)	(507		)
Plan assets at fair value, end of period	$	—		$	—
Unfunded Status of the Plan	$	(33,348	)	$	(32,820	)



	Three Months Ended
	March 31, 2018		March 31, 2017
Components of Net Periodic Benefit Cost
Service cost	$	300	$	250
Interest cost	310		307
Net loss	133		73
Net periodic pension cost	$	743	$	630

The long-term portion of the pension liability as of March 31, 2018 and December 31, 2017 was $32.2 million and $28.3 million, respectively, and is included in Other Non-Current Liabilities in the accompanying consolidated balance sheets.