Net Income (Loss) Per Share - Narrative (Details)	9 Months Ended
Sep. 30, 2021 shares
Convertible Senior Notes Due 2026 \| Convertible notes
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Debt convertible to common shares (in shares)	4,167,232

The number of equity instruments that the holder of the debt instrument would receive if the debt was converted to equity.

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Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration