Debt - Narrative (Details) - Convertible Debt	3 Months Ended
	Mar. 31, 2022 USD ($) day	Dec. 31, 2021 USD ($) day	Mar. 31, 2021 USD ($)	Mar. 31, 2022 Rate	Mar. 31, 2022 $ / shares	Mar. 31, 2022	Jan. 11, 2021 USD ($) Rate	May 04, 2020 USD ($) Rate
0.25% Convertible Senior Notes
Line of Credit Facility [Line Items]
Stated interest rate (as a percent) | Rate				0.25%			0.25%
Debt instrument, face amount							$ 345,000,000
Convertible Notes, conversion price (in dollars per share) | $ / shares					$ 12.15
Interest expense, contractual coupon interest	$ 200,000		$ 200,000
Interest expense, accretion of debt discount	400,000		400,000
Interest expense, amortization of debt issuance costs	$ 8,400		6,700
Effective interest rate on Convertible Notes (as a percent)	0.70%
0.25% Convertible Senior Notes | Level 2
Line of Credit Facility [Line Items]
Estimated fair value of debt	$ 231,400,000	$ 297,600,000
1.25% Convertible Senior Notes
Line of Credit Facility [Line Items]
Stated interest rate (as a percent)				1.25%		1.25%		1.25%
Debt instrument, face amount								$ 201,300,000
Convertible Notes, conversion price (in dollars per share) | $ / shares					$ 12.15
Interest expense, contractual coupon interest	600,000		600,000
Interest expense, accretion of debt discount	300,000		300,000
Interest expense, amortization of debt issuance costs	$ 40,000.00		$ 40,000.00
Effective interest rate on Convertible Notes (as a percent)	1.96%
1.25% Convertible Senior Notes | Level 2
Line of Credit Facility [Line Items]
Estimated fair value of debt	$ 176,100,000	$ 238,900,000
1.25% Convertible Senior Notes | Debt Instrument, Redemption, Period One
Line of Credit Facility [Line Items]
Conversion price on applicable trading day (as a percent)	130.00%	130.00%
Threshold trading days | day	20	20
Consecutive trading days | day	30	30