Stock-Based Compensation - Stock Options (Details) shares in Thousands	9 Months Ended
	Sep. 30, 2021 $ / shares shares
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Options outstanding, range of exercise prices, minimum (in dollars per share)	$ 9.46
Options outstanding, range of exercise prices, maximum (in dollars per share)	$ 24.07
Options outstanding, number of shares (in shares) | shares	475
Options outstanding, weighted average remaining contractual life	3 years 9 months 18 days
Options outstanding, weighted average exercise price (in dollars per share)	$ 22.47
Options exercisable, number of shares (in shares) | shares	475
Options exercisable, weighted average exercise price (in dollars per share)	$ 22.47
Range 01
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Options outstanding, range of exercise prices, minimum (in dollars per share)	9.46
Options outstanding, range of exercise prices, maximum (in dollars per share)	$ 9.46
Options outstanding, number of shares (in shares) | shares	1
Options outstanding, weighted average remaining contractual life	3 months 18 days
Options outstanding, weighted average exercise price (in dollars per share)	$ 9.46
Options exercisable, number of shares (in shares) | shares	1
Options exercisable, weighted average exercise price (in dollars per share)	$ 9.46
Range 02
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Options outstanding, range of exercise prices, minimum (in dollars per share)	10.65
Options outstanding, range of exercise prices, maximum (in dollars per share)	$ 10.65
Options outstanding, number of shares (in shares) | shares	3
Options outstanding, weighted average remaining contractual life	1 year 3 months 29 days
Options outstanding, weighted average exercise price (in dollars per share)	$ 10.65
Options exercisable, number of shares (in shares) | shares	3
Options exercisable, weighted average exercise price (in dollars per share)	$ 10.65
Range 03
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Options outstanding, range of exercise prices, minimum (in dollars per share)	20.29
Options outstanding, range of exercise prices, maximum (in dollars per share)	$ 20.29
Options outstanding, number of shares (in shares) | shares	47
Options outstanding, weighted average remaining contractual life	3 years 3 months
Options outstanding, weighted average exercise price (in dollars per share)	$ 20.29
Options exercisable, number of shares (in shares) | shares	47
Options exercisable, weighted average exercise price (in dollars per share)	$ 20.29
Range 04
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Options outstanding, range of exercise prices, minimum (in dollars per share)	20.36
Options outstanding, range of exercise prices, maximum (in dollars per share)	$ 20.36
Options outstanding, number of shares (in shares) | shares	1
Options outstanding, weighted average remaining contractual life	3 years 1 month 17 days
Options outstanding, weighted average exercise price (in dollars per share)	$ 20.36
Options exercisable, number of shares (in shares) | shares	1
Options exercisable, weighted average exercise price (in dollars per share)	$ 20.36
Range 05
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Options outstanding, range of exercise prices, minimum (in dollars per share)	22.20
Options outstanding, range of exercise prices, maximum (in dollars per share)	$ 22.20
Options outstanding, number of shares (in shares) | shares	51
Options outstanding, weighted average remaining contractual life	3 years 5 months 23 days
Options outstanding, weighted average exercise price (in dollars per share)	$ 22.20
Options exercisable, number of shares (in shares) | shares	51
Options exercisable, weighted average exercise price (in dollars per share)	$ 22.20
Range 06
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Options outstanding, range of exercise prices, minimum (in dollars per share)	22.75
Options outstanding, range of exercise prices, maximum (in dollars per share)	$ 22.75
Options outstanding, number of shares (in shares) | shares	293
Options outstanding, weighted average remaining contractual life	3 years 10 months 9 days
Options outstanding, weighted average exercise price (in dollars per share)	$ 22.75
Options exercisable, number of shares (in shares) | shares	293
Options exercisable, weighted average exercise price (in dollars per share)	$ 22.75
Range 07
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Options outstanding, range of exercise prices, minimum (in dollars per share)	23.51
Options outstanding, range of exercise prices, maximum (in dollars per share)	$ 23.51
Options outstanding, number of shares (in shares) | shares	72
Options outstanding, weighted average remaining contractual life	4 years 3 months 18 days
Options outstanding, weighted average exercise price (in dollars per share)	$ 23.51
Options exercisable, number of shares (in shares) | shares	72
Options exercisable, weighted average exercise price (in dollars per share)	$ 23.51
Range 08
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Options outstanding, range of exercise prices, minimum (in dollars per share)	24.07
Options outstanding, range of exercise prices, maximum (in dollars per share)	$ 24.07
Options outstanding, number of shares (in shares) | shares	7
Options outstanding, weighted average remaining contractual life	3 years 11 months 15 days
Options outstanding, weighted average exercise price (in dollars per share)	$ 24.07
Options exercisable, number of shares (in shares) | shares	7
Options exercisable, weighted average exercise price (in dollars per share)	$ 24.07