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Price of the entity's common stock which would be required to be attained for the conversion feature embedded in the debt instrument to become effective.

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Threshold period of specified consecutive trading days within which common stock price to conversion price of convertible debt instrument must exceed threshold percentage for specified number of trading days to trigger conversion feature.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Percentage of principal amount of debt redeemed.

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Debt - Narrative (Details)		3 Months Ended
Debt - Narrative (Details)	Sep. 04, 2019 USD ($) $ / shares $ / unit	Mar. 31, 2022 USD ($) d $ / shares	Dec. 31, 2019 USD ($)	Dec. 31, 2021 USD ($)	Mar. 31, 2021	Sep. 30, 2019 USD ($)
Debt Instrument [Line Items]
Debt instrument, convertible, conversion ratio	0.04004
Debt instrument trading days \| d		20
Debt instrument consecutive trading day \| d		30
Payment for capped call share options	$ 32,900,000
Call Option
Debt Instrument [Line Items]
Capped price (in dollars per share) \| $ / unit	37.00
Premium of cap price as a percentage of closing price	100.00%
COMMON STOCK
Debt Instrument [Line Items]
Closing stock price (in dollars per share) \| $ / shares	$ 18.50
Convertible Senior Notes
Debt Instrument [Line Items]
Principal amount						$ 316,250,000
Interest rate						1.50%
Convertible Senior Notes \| Convertible Senior Notes Due 2024
Debt Instrument [Line Items]
Principal amount		$ 316,250,000		$ 316,250,000		$ 316,250,000
Interest rate						1.50%
Debt instrument, convertible conversion price (in dollars per share) \| $ / shares	$ 24.98	$ 24.98
Stock price trigger, premium on closing price (as a percent)	35.00%
Redemption price (as a percent)		100.00%
Stock price trigger (as a percent)		130.00%
Debt instrument, effective conversion price (in dollars per share) \| $ / shares		$ 32.47
Equity component of convertible debt						$ 128,400,000
Debt issuance costs incurred			$ 9,200,000
Debt issuance costs, net		$ 4,572,000	5,500,000	$ 3,328,000
Debt issuance costs related with equity component of convertible debt			$ 3,700,000
Convertible Senior Notes \| Convertible Senior Notes Due 2024 \| LEVEL 3
Debt Instrument [Line Items]
Convertible notes fair value of liability component		$ 187,900,000
Convertible notes fair value of liability component, effective interest rate percentage		2.10%			10.50%