Summary of Significant Accounting Policies Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2018

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Schedule of Life Settlement Contracts

The amounts reclassified are presented in the table below.

	Fiscal Years Ended December 31
(Dollars in thousands)	2017		2016
Proceeds from BOLI	$	11,440	$	2,740

Schedule of Net Benefit Costs

The amounts reclassified are presented in the table below.

	Fiscal Years Ended December 31
(Dollars in thousands)	2017		2016
Net periodic benefit cost/(credit) reclassified	$	1,946	$	(843	)

The components of net periodic benefit cost for the plan years 2018, 2017 and 2016 are as follows:

(Dollars in thousands)	Total Pension Benefits									Other Benefits
	2018			2017			2016			2018			2017			2016
Components of net periodic benefit cost
Service cost	$	41		$	37		$	39		$	133		$	107		$	110
Interest cost	27,877			29,380			31,216			1,309			1,305			1,292
Expected return on plan assets	(32,897		)	(36,015		)	(39,123		)	(1,074		)	(947		)	(913		)
Amortization of unrecognized:
Prior service cost/(credit)	—			52			196			—			95			170
Actuarial (gain)/loss	12,102			9,521			8,141			(387		)	(567		)	(810		)
Net periodic benefit cost	7,123			2,975			469			(19		)	(7		)	(151		)
ASC 715 settlement expense	—			43			—			99			—			—
Total periodic benefit costs	$	7,123		$	3,018		$	469		$	80		$	(7	)	$	(151	)