The following table summarizes activities related to the Company’s stock options:


(in thousands, except per share data)	Number of Options			Weighted- Average Exercise Price		Weighted- Average Remaining Contractual Term (Years)		Aggregate Intrinsic Value
Outstanding as of December 31, 2019		270		$	20.02
Exercised		(76	)		19.87
Forfeited or expired		(6	)		23.08
Outstanding as of December 31, 2020		188		$	19.98
Exercised		(54	)		19.77
Forfeited or expired		(2	)		20.16
Outstanding as of December 31, 2021		132		$	20.06
Exercised		(53	)		17.16
Forfeited or expired		(22	)		22.36
Outstanding and exercisable as of December 31, 2022		57		$	21.85		1.36	$	277

The following table summarizes the activities related to the Company’s performance-based restricted stock units:


				Weighted-
				Average
	Number of			Grant Date
(in thousands, except per share data)	Units			Fair Value
Non-vested units outstanding as of December 31, 2019		384		$	28.89
Granted(1)		165			28.02
Forfeited		(181	)		30.04
Non-vested units outstanding as of December 31, 2020		368		$	27.93
Granted(1)		234			28.60
Forfeited		(60	)		29.38
Non-vested units outstanding as of December 31, 2021		542		$	28.06
Granted(1)		177			25.97
Forfeited		(174	)		27.29
Non-vested units outstanding as of December 31, 2022		545		$	27.62

(1)

Represents target number of units that can vest based on the achievement of the performance goals.