Stock-Based Compensation - Additional Information (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	$ 3,000,000.0	$ 1,800,000	$ 5,500,000	$ 6,000,000.0
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	700,000	900,000	1,300,000	1,700,000
Time-Based Restricted Share Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	1,500,000	400,000	2,400,000	2,600,000
Performance-based Restricted Share Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	$ 800,000	500,000	1,700,000	1,700,000
Employee Stock Purchase Program
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense		$ 0	$ 100,000	$ 0