Stock Based Compensation - Exercise Price Range (Details) - $ / shares shares in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Number of Options, Outstanding and Exercisable (in shares)	215	118	120
Weighted Average Remaining Contractual Life (In Years)	1 year 10 months 17 days
Weighted Average Exercise Price, Outstanding and Exercisable (in dollars per share)	$ 12.27	$ 19.90	$ 19.90
$0.00 – $10.00
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Range of price, lower range limit (in dollars per share)	0
Range of price, upper range limit (in dollars per share)	$ 10
Number of Options, Outstanding and Exercisable (in shares)	110
Weighted Average Remaining Contractual Life (In Years)	9 months 22 days
Weighted Average Exercise Price, Outstanding and Exercisable (in dollars per share)	$ 5.01
$10.01 – $20.00
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Range of price, lower range limit (in dollars per share)	10.01
Range of price, upper range limit (in dollars per share)	$ 20
Number of Options, Outstanding and Exercisable (in shares)	98
Weighted Average Remaining Contractual Life (In Years)	3 years 22 days
Weighted Average Exercise Price, Outstanding and Exercisable (in dollars per share)	$ 19.32
$20.01 – $30.00
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Range of price, lower range limit (in dollars per share)	20.01
Range of price, upper range limit (in dollars per share)	$ 30
Number of Options, Outstanding and Exercisable (in shares)	3
Weighted Average Remaining Contractual Life (In Years)	2 years 5 months 9 days
Weighted Average Exercise Price, Outstanding and Exercisable (in dollars per share)	$ 21.80
$30.01 – $40.00
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Range of price, lower range limit (in dollars per share)	30.01
Range of price, upper range limit (in dollars per share)	$ 40
Number of Options, Outstanding and Exercisable (in shares)	5
Weighted Average Remaining Contractual Life (In Years)	2 years 2 months 12 days
Weighted Average Exercise Price, Outstanding and Exercisable (in dollars per share)	$ 30.20