Leases (Tables)

12 Months Ended

Dec. 31, 2020

Leases

Summary of net lease expense

	Year Ended December 31,
(dollars in thousands)	2020		2019
Operating lease expense	$	9,169	$	9,158
Short-term lease expense		397		487
Variable lease expense		2,353		2,152
Finance lease expense:
Amortization of right-of-use assets		3		3
Interest on lease liabilities		1		2
Total finance lease expense		4		5
Less: Sublease income		(1,222)		(1,073)
Net lease expense	$	10,701	$	10,729

Summary of rental expense, net of sublease income, presented in accordance with Topic 840

	Year Ended
(dollars in thousands)	December 31, 2018
Rental expense charged to occupancy	$	9,947
Less: Sublease income		903
Net rental expense charged to occupancy		9,044
Rental expense charged to equipment expense		3,679
Total	$	12,723

Summary of other information related to the Company's lease liabilities

	Year Ended December 31,
(dollars in thousands)	2020			2019
Supplemental Cash Flows Information
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows paid for operating leases	$	8,848		$	8,802
Operating cash flows paid for finance leases	$	—		$	10
Financing cash flows paid for finance leases	$	10		$	10
Right-of-use assets obtained in exchange for new lease obligations:
Operating leases	$	3,796		$	1,401
Weighted Average Remaining Lease Term
Operating leases (years)		16.1			15.7
Finance leases (years)		1.5			2.5
Weighted Average Discount Rate
Operating leases		3.17	%		3.36	%
Finance leases		6.78	%		6.78	%

Summary of future minimum rental payments under noncancellable leases

	Net Operating
	Lease
(dollars in thousands)	Payments
Year ending December 31:
2021	$	8,928
2022		6,334
2023		3,833
2024		3,601
2025		2,937
Thereafter		42,746
Total future minimum lease payments		68,379
Less: Imputed interest		(20,792)
Total	$	47,587

Summary of future minimum rental income under noncancellable operating leases

The following table sets forth future minimum rental income under noncancelable operating leases with terms in excess of one year as of December 31, 2020:

	Minimum
	Rental
(dollars in thousands)	Income
Year ending December 31:
2021	$	6,454
2022		4,724
2023		3,800
2024		2,973
2025		2,404
Thereafter		5,932
Total	$	26,287