Leases (Tables)

12 Months Ended

Dec. 31, 2021

Leases

Summary of Company's leases

	Year ended December 31,
	2021		2020		2019
	(dollars in thousands)
Lease expense:
Operating leases	$	18,363	$	16,223	$	13,644
Short-term leases		904		1,153		821
Sublease income		—		—		(94)
Net lease expense included in Occupancy and equipment	$	19,267	$	17,376	$	14,371
Other information:
Payments for operating leases	$	20,145	$	16,524	$	16,167
Operating lease right-of-use assets recognized
Upon adoption Accounting Standards Update 2016-02, Leases (Topic 842)	$	—	$	—	$	58,713
New leases		28,401		14,128		24,535
	$	28,401	$	14,128	$	83,248
Period end weighted averages:
Remaining lease term (in years)		5.7		6.3		7.1
Discount rate		4.0%		4.1%		4.3%

Schedule of maturities of operating lease liabilities

Year ended December 31,	Operating leases
	(in thousands)
2022	$	20,500
2023		21,869
2024		21,900
2025		21,385
2026		16,644
Thereafter		19,536
Total lease payments		121,834
Less imputed interest		(11,831)
Operating lease liability	$	110,003