Employee Benefit Plans (Tables)

6 Months Ended

Jun. 30, 2016

Compensation and Retirement Disclosure [Abstract]

Schedule of Net Benefit Costs

The following tables detail the components of the net periodic cost for the plans:

	Pension Benefits
	Three Months Ended						Six Months Ended
	June 30,						June 30,
(Dollars in thousands)	2016			2015			2016			2015
Interest cost	$	109		$	109		$	219		$	224
Expected return on plan assets	(146		)	(121		)	(246		)	(251		)
Amortization of net loss	48			31			48			64
Settlement of benefit obligation	—			103			—			372
Net periodic cost	$	11		$	122		$	21		$	409

	Postretirement Benefits
	Three Months Ended						Six Months Ended
	June 30,						June 30,
(Dollars in thousands)	2016			2015			2016			2015
Interest cost	$	1		$	1		$	2		$	2
Amortization of net loss	(2		)	(1		)	(3		)	(2		)
Net periodic benefit	$	(1	)	$	—		$	(1	)	$	—