Stock-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2021

Share-based Payment Arrangement [Abstract]

Summary of Share Based Compensation Activity

The following table summarizes RSU and PSA activity during periods indicated:

Units	2021	2020
Balance at January 1,	1,071,652	896,463
Granted	363,104	386,995
Forfeited	(101,431)	(87,523)
Shares delivered	(196,637)	(136,182)
Balance at September 30,	1,136,688	1,059,753

The following table sets forth information related to outstanding SOSARs:

	2021			2020
SOSARS	Shares	Wtd Avg Exercise Price		Shares	Wtd Avg Exercise Price
Outstanding at January 1,	1,082,413	$	20.40	1,291,947	$	20.05
Granted	—	—		—	—
Exercised	—	—		(58,460)	12.85
Canceled / forfeited	—	—		(151,074)	20.25
Outstanding at September 30,	1,082,413	$	20.40	1,082,413	$	20.40

Compensation Expense for Stock Option Activity Included in Continuing Operations

The following table sets forth aggregate RSU and PSA compensation expense included in continuing operations for the periods indicated:

	September 30
In thousands	2021		2020
Three months ended	$	1,478	$	1,617
Nine months ended	4,015		3,994