Leases (Tables)

12 Months Ended

Dec. 31, 2019

Leases [Abstract]

Supplemental Information Relating to Operating Leases

	Year Ended
	December 31,
(Dollars in thousands)	2019
Lease expense incurred:
Operating lease cost	$	21,471

	At December 31,
(Dollars in thousands)	2019
Operating lease right of use assets	$	152,978
Operating lease liabilities		160,387

	Year Ended
	December 31,
(Dollars in thousands)	2019
Operating cash flows from operating leases	$	(17,617)

	At December 31,
	2019
Weighted average remaining operating lease term	12.8 years
Weighted average discount rate on operating leases	3.91	%

Maturities of Lease Liabilities

(Dollars in thousands)
2020	$	17,793
2021		15,106
2022		16,921
2023		16,465
2024		16,425
Thereafter		122,861
Undiscounted lease payments		205,571
Less: present value adjustment		45,184
Total operating lease liability	$	160,387