Benefit Plans (Tables)

12 Months Ended

Dec. 31, 2021

Retirement Benefits [Abstract]

Summary of the stock option activities in the Plans

Below is a summary of the stock option activity in the Plans for the year ended December 31, 2021:

	2021
(Dollars in thousands, except per share data)	Number of Stock Options Outstanding	Weighted Average Exercise Price Per Share		Weighted Average Remaining Contractual Term (in years)	Aggregate Intrinsic value
Outstanding at January 1, 2021	309,315	$	16.84
Granted	—	—
Exercised	(95,522)	17.24
Forfeited and expired	(716)	21.61
Outstanding at December 31, 2021	213,077	$	16.64	2.91	$	4,983
Vested and exercisable at December 31, 2021	213,077	$	16.64	2.91	$	4,983

Schedule of other share-based compensation activity

Below is a summary of the activity for restricted stock and restricted stock units in the Plans for the year ended December 31, 2021:

	2021
	Shares	Weighted Average Grant-Date Fair Value Per Share
Unvested at the beginning of the year	1,269,244	$	26.35
Granted	536,940	45.47
Vested	(384,803)	32.48
Forfeited	(55,603)	34.44
Unvested at the end of the year	1,365,778	$	31.81