Retirement Plans

3 Months Ended

Mar. 31, 2017

Compensation and Retirement Disclosure [Abstract]

Retirement Plans

12. RETIREMENT PLANS

Our subsidiaries participate in a qualified 401(k) defined contribution plan under which employees may contribute a percentage of their salary. Employees are eligible to participate upon their first day of employment. Under this plan, we match 100% of the first six percent that the employee defers. Additionally, we may provide a performance-based company contribution of up to three percent if we exceed annual financial goals. Our contribution expense is presented in the following table:

	Three Months Ended
	March 31,
(in thousands)	2017		2016
401(k) contribution expense	$	2,767	$	2,462

FNB also sponsors an ERISA Excess Lost Match Plan for certain officers. This plan provides retirement benefits equal to the difference, if any, between the maximum benefit allowable under the Internal Revenue Code and the amount that would have been provided under the qualified 401(k) defined contribution plan, if no limits were applied.

Additionally, we sponsor a qualified non-contributory defined benefit pension plan and two supplemental non-qualified retirement plans that have been frozen. The net periodic benefit credit for these plans includes the following components:

	Three Months Ended
	March 31,
(in thousands)	2017			2016
Service cost	$	(4	)	$	(4	)
Interest cost		1,477			1,544
Expected return on plan assets		(2,427	)		(2,353	)
Amortization:
Unrecognized prior service cost		2			2
Unrecognized loss		628			608
Net periodic pension credit	$	(324	)	$	(203	)