Stock Compensation Plans (Tables)

12 Months Ended

Dec. 31, 2022

Share-Based Payment Arrangement [Abstract]

Schedule of Stock Compensation Expense and Related Net Tax Benefits

The following table presents a summary of the total share-based compensation expense and the related net tax benefits (deficiencies) associated with the Company’s various employee share-based compensation plans for the years ended December 31, 2022, 2021 and 2020:

($ in thousands)	Year Ended December 31,
	2022		2021		2020
Stock compensation costs	$	37,601	$	32,567	$	29,237
Related net tax benefits (deficiencies) for stock compensation plans	$	5,293	$	1,760	$	(1,839)

Summary of Activities for Time-Based and Performance-Based Restricted Stock Units

The following table presents a summary of the activities for the Company’s time-based and performance-based RSUs that will be settled in shares for the year ended December 31, 2022. The number of outstanding performance-based RSUs stated below reflects the number of awards granted on the grant date.

	Time-Based RSUs			Performance-Based RSUs
	Shares	Weighted- Average Grant Date Fair Value		Shares	Weighted- Average Grant Date Fair Value
Outstanding, January 1, 2022	1,329,946	$	52.65	369,731	$	54.28
Modified from cash-settled RSUs	31,523	77.28		—	—
Granted	444,359	78.15		91,874	77.91
Vested	(373,363)	53.07		(125,213)	54.64
Forfeited	(135,599)	63.15		(3,882)	77.91
Outstanding, December 31, 2022	1,296,866	$	60.77	332,510	$	60.40

Summary of Time-Based RSU's that Will be Settled in Cash

The following table presents a summary of the activities for the Company’s time-based RSUs that are cash-settled for the year ended December 31, 2022. During 2022, the amount of cash paid to settle the vested RSUs was $318 thousand.

	Shares
Outstanding, January 1, 2022	32,647
Modified to share-settled RSUs	(31,523)
Granted	2,668
Vested	(3,471)
Forfeited	(321)
Outstanding, December 31, 2022	—