The components of net periodic pension cost consisted of the following (amounts in thousands):



	Three months ended						Nine months ended
	September 30,						September 30,
	2016			2015			2016			2015
Service cost	$	74		$	83		$	386		$	326
Interest cost	1,230			1,167			3,700			3,601
Expected return on assets	(1,396		)	(1,512		)	(4,184		)	(4,549		)
Amortization of unrecognized prior service cost	35			34			103			103
Amortization of net unrecognized loss	762			729			2,289			2,187
Net periodic pension cost	$	705		$	501		$	2,294		$	1,668