Share-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2019

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Summary of Share-Based Compensation Expense

The following table summarizes share-based compensation expense:

	Three Months Ended						Six Months Ended
	June 30,						June 30,
(in thousands)	2019			2018			2019			2018
Performance unit incentive plan (“PUP”)	$	1,557		$	1,324		$	2,980		$	1,518
Restricted stock		783			667			1,476			1,170
Restricted stock units		71			54			161			74
Share-based compensation before income tax benefit		2,411			2,045			4,617			2,762
Income tax benefit		(607	)		(515	)		(1,165	)		(696	)
Share-based compensation, net of income tax benefit	$	1,804		$	1,530		$	3,452		$	2,066

Summary of Activity of the Outstanding Share-Based Compensation Awards

The following table summarizes the activity of the outstanding share-based compensation awards:

	PUP Awards					Restricted Stock					Restricted Stock Units
	Shares			Weighted-Average Grant Date Fair Value		Shares			Weighted-Average Grant Date Fair Value		Shares			Weighted-Average Grant Date Fair Value
Balance at December 31, 2018		239,809		$	40.65		176,769		$	40.87		12,090		$	39.04
Granted		73,020		$	58.25		55,042		$	57.82		5,025		$	56.81
Vested		(95,309	)	$	26.98		(81,320	)	$	31.79		(5,377	)	$	26.98
Forfeited		(488	)	$	54.70		(2,772	)	$	49.24		(115	)	$	52.15
Balance at June 30, 2019		217,032		$	52.54		147,719		$	52.02		11,623		$	52.17

Summary of Stock Option Activity

The following table summarizes stock option activity:

	Shares			Weighted-Average Exercise Price
Options outstanding and exercisable at December 31, 2018		58,689		$	16.62
Exercised		(5,546	)	$	16.62
Options outstanding and exercisable at June 30, 2019		53,143		$	16.62