Stock-Based Compensation Plans (Tables)

12 Months Ended

Dec. 31, 2023

Share-Based Payment Arrangement [Abstract]

Summary of Share-based Compensation, Restricted Stock Units Award Activity

The following table summarizes information about RSUs:

	2023			2022
	Shares	Weighted average fair value		Shares	Weighted average fair value
Outstanding - beginning of the year	7,197,755	$	6.09	5,738,293	$	6.95
Granted	2,068,825	4.19		5,280,429	4.82
Vested	(2,819,824)	5.53		(2,221,027)	6.10
Forfeited	(921,563)	5.63		(1,599,940)	4.69
Outstanding - end of the year	5,525,193	$	5.74	7,197,755	$	6.09

Summary of Share-based Compensation, Performance Stock Units Award Activity

	2023			2022
	Shares	Weighted average fair value		Shares	Weighted average fair value
Outstanding - beginning of the year	811,620	$	9.57	1,009,091	$	6.60
Vested	—	—		(197,471)	6.73
Outstanding - end of the year	811,620	$	9.57	811,620	$	9.57

Summary of Share-based Compensation, Stock Options, Activity

The following table summarizes information about stock option activity:

	2023			2022
	Shares	Per share weighted average exercise prices		Shares	Per share weighted average exercise prices
Options outstanding - beginning of the year	10,027,048	$	9.91	11,120,069	$	10.65
Canceled	(435,403)	7.91		(93,021)	8.09
Expired	(440,000)	20.27		(1,000,000)	18.29
Options outstanding - end of the year	9,151,645	$	9.50	10,027,048	$	9.91
Options exercisable - end of the year	9,057,268	$	9.52	8,912,286	$	10.42

Summary of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range

The following table provides additional information about stock options outstanding and exercisable at December 31, 2023:

	Options Outstanding				Options Exercisable
Range of per share exercise prices	Shares	Per share weighted-average exercise price		Weighted-average remaining contractual life	Shares	Per share weighted-average exercise price		Weighted-average remaining contractual life
$3.98 - $6.60	4,250,995	$	5.05	5.5 years	4,250,995	$	5.05	5.5 years
$8.55 - $8.76	744,908	$	8.63	6.7 years	650,531	$	8.63	6.7 years
$12.64 - $21.54	4,155,742	$	14.21	3.0 years	4,155,742	$	14.21	3.0 years
	9,151,645	$	9.50	4.5 years	9,057,268	$	9.52	4.5 years

Summary of Share-based Payment Award, Stock Options, Valuation Assumptions

The following table lists the weighted average assumptions used to calculate the fair value of stock options granted in 2021:

Expected dividend yield	2.4	%
Expected stock price volatility	70.0	%
Risk-free interest rate	1.1	%
Expected life	7 years
Weighted-average fair value per option granted	$4.53
Fair value of options granted	$3,342