Stock-Based Compensation - Additional Information (Details) - USD ($)	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	$ 2,500,000	$ 4,200,000
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	600,000	700,000
Time-Based Restricted Share Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	900,000	2,300,000
Performance-based Restricted Share Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	900,000	1,200,000
Employee Stock Purchase Program
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	$ 100,000	$ 0