Benefit Plans (Tables)

9 Months Ended

Sep. 30, 2019

Benefit Plans

Schedule of components of net periodic benefit cost

	Income line item where recognized in	Pension Benefits				Other Benefits
(dollars in thousands)	the consolidated statements of income	2019		2018		2019		2018
Three Months Ended September 30,
Service cost	Salaries and employee benefits	$	18	$	174	$	160	$	80
Interest cost	Other noninterest expense		2,044		1,840		203		293
Expected return on plan assets	Other noninterest expense		(1,195)		(1,318)		—		—
Prior service credit	Other noninterest expense		—		—		(107)		(108)
Recognized net actuarial loss (gain)	Other noninterest expense		1,564		1,829		(76)		—
Total net periodic benefit cost		$	2,431	$	2,525	$	180	$	265
Nine Months Ended September 30,
Service cost	Salaries and employee benefits	$	52	$	522	$	478	$	505
Interest cost	Other noninterest expense		6,132		5,429		615		662
Expected return on plan assets	Other noninterest expense		(3,585)		(3,797)		—		—
Prior service credit	Other noninterest expense		—		—		(321)		(322)
Recognized net actuarial loss (gain)	Other noninterest expense		4,692		5,049		(228)		—
Total net periodic benefit cost		$	7,291	$	7,203	$	544	$	845