Leases (Tables)

12 Months Ended

Dec. 31, 2017

Leases

Schedule of future minimum rental income under noncancelable operating leases with terms in excess of one year

	Minimum
	Rental
(dollars in thousands)	Income
Year ending December 31:
2018	$	5,642
2019		5,642
2020		5,638
2021		5,564
2022		4,550
Thereafter		11,072
Total	$	38,108

Schedule of rental expense, net of sublease income

	Year Ended December 31,
(dollars in thousands)	2017		2016		2015
Rental expense charged to occupancy	$	8,620	$	8,689	$	8,698
Less: sublease income		1,342		1,303		1,588
Net rental expense charged to occupancy		7,278		7,386		7,110
Rental expense charged to equipment expense		285		326		383
Total	$	7,563	$	7,712	$	7,493

Schedule of future minimum rental expense under leases with terms in excess of one year

	Operating		Less		Net
	Lease		Sublease		Lease
(dollars in thousands)	Payments		Income		Payments
Year ending December 31:
2018	$	7,694	$	893	$	6,801
2019		7,449		893		6,556
2020		6,823		893		5,930
2021		5,184		881		4,303
2022		2,557		—		2,557
Thereafter		18,004		—		18,004
Total	$	47,711	$	3,560	$	44,151