Stock-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2023

Share-Based Payment Arrangement [Abstract]

Stock-Based Compensation Expense and Related Tax Benefit

Total stock-based compensation expense and the related tax benefit were as follows:

	Three Months Ended September 30,				Nine Months Ended September 30,
In thousands	2023		2022		2023		2022
Stock options	$	18	$	236	$	98	$	798
Restricted stock units	6,581		4,430		19,680		15,883
Unrestricted stock awards	238		218		753		735
Phantom stock units	1,190		(176)		3,114		596
Total stock-based compensation	$	8,027	$	4,708	$	23,645	$	18,012
Related tax benefit	$	1,686	$	1,195	$	5,059	$	4,264

Employee Stock Options Activity

A summary of our stock option activity is as follows:

	Shares	Weighted Average Exercise Price per Share		Weighted Average Remaining Contractual Life	Aggregate Intrinsic Value		Weighted Average Grant Date Fair Value
	In thousands			Years	In thousands
Outstanding, January 1, 2022	393	$	61.18	5.9	$	4,737
Granted	—	—					$	—
Exercised	—	—			—
Forfeited	(2)	87.27
Canceled	(8)	78.76
Outstanding, September 30, 2022	383	$	60.69	5.1	$	729
Outstanding, January 1, 2023	381	$	60.63	4.8	$	1,892
Granted	—	—					$	—
Exercised	(6)	56.83			88
Forfeited	—	—
Canceled	—	—
Outstanding, September 30, 2023	375	$	60.69	4.1	$	3,316
Exercisable, September 30, 2023	375	$	60.64	4.1	$	3,316

Restricted Stock Units Award Activity

The following table summarizes restricted stock unit activity:

In thousands, except fair value	Number of Restricted Stock Units	Weighted Average Grant Date Fair Value		Aggregate Intrinsic Value
Outstanding, January 1, 2022	430
Granted	371	$	53.32
Released (1)	(220)			$	11,441
Forfeited	(62)
Outstanding, September 30, 2022	519
Outstanding, January 1, 2023	528	$	66.39
Granted	459	56.62
Released (1)	(235)	71.83		$	739
Forfeited	(25)	62.32
Outstanding, September 30, 2023	727	58.81
Vested but not released, September 30, 2023	15			$	887

(1)    Shares released is presented as gross shares and does not reflect shares withheld by us for employee payroll tax obligations.

Restricted Stock Units, Valuation Assumptions

The weighted average assumptions used to estimate the fair value of performance-based restricted stock units granted with a service and market condition and the resulting weighted average fair value are as follows:

	Nine Months Ended September 30,
	2023			2022
Expected volatility	50.0		%	55.7		%
Risk-free interest rate	4.6		%	1.7		%
Expected term (years)	2.2			2.9
Weighted average fair value	$	59.52		$	57.88