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v3.22.1

Debt - Convertible Subordinated Notes (Details) $ / shares in Units, $ in Thousands |  |  | 1 Months Ended | 3 Months Ended |  |
--- | --- | --- | --- | --- | --- | ---
Mar. 07, 2022 USD ($) | Jul. 31, 2014 $ / shares $ / Item | Jul. 31, 2014 $ / shares $ / Item shares | Jan. 31, 2013 USD ($) Item $ / shares $ / Item shares | Mar. 31, 2022 USD ($) | Mar. 31, 2021 USD ($) | Dec. 31, 2021 USD ($) | Dec. 31, 2016 USD ($)
Debt |  |  |  |  |  |  |  |
Payment for repurchase of debt instrument |  |  |  |  | $ 165,131 | $ 0 |  |
Accrued interest payable |  |  |  |  | 1,397 |  | $ 4,152 |
Loss on extinguishment of debt |  |  |  |  | (20,662) | 0 |  |
Liability component |  |  |  |  |  |  |  |
Principal |  |  |  |  | 549,707 |  | 433,484 |
Debt discount and issuance costs, net |  |  |  |  | $ (10,960) |  | (38,831) |
Convertible subordinated notes | Privately-negotiated capped call option |  |  |  |  |  |  |  |
Debt |  |  |  |  |  |  |  |
Cap price for the underlying number of shares (in dollars per share) | $ / Item |  | 27.04 | 27.04 |  |  |  |  |
2023 Notes | Convertible subordinated notes |  |  |  |  |  |  |  |
Debt |  |  |  |  |  |  |  |
Loan amount |  |  |  | $ 287,500 |  |  |  |
Proceeds from issuance of notes payable, net of debt issuance costs |  |  |  | $ 281,200 |  |  |  |
Debt Instrument, annual interest rate |  |  |  | 2.125% |  |  |  |
Initial conversion, shares per $1,000 principal amount | shares | shares |  |  |  | 35.9903 |  |  |  |
Adjusted conversion, shares per $1,000 principal amount | shares |  |  | 50.5818 |  |  |  |  |
Conversion price of convertible notes into common stock (in dollars per share) | $ / shares |  | $ 19.77 | $ 19.77 | $ 27.79 |  |  |  |
Ratio of repurchase price to the principal amount |  |  |  |  | 100.00% |  |  |
Portion of debt retired, face value | $ 144,800 |  |  |  | $ 144,800 |  |  | $ 14,100
Portion of debt retired, carrying value |  |  |  |  | 144,500 |  |  | $ 13,900
Payment for repurchase of debt instrument | $ 165,600 |  |  |  | 165,600 |  |  |
Percentage of notes repurchased | 60.00% |  |  |  |  |  |  |
Accrued interest payable | $ 400 |  |  |  |  |  |  |
Unamortized debt issuance cost | 300 |  |  |  |  |  |  |
Loss on extinguishment of debt | $ 20,700 |  |  |  |  |  |  |
Effective interest rate | 2.37% |  |  |  |  |  |  |
Liability component |  |  |  |  |  |  |  |
Principal | $ 96,200 |  |  |  | 96,207 |  | 240,984 |
Debt discount and issuance costs, net | $ (200) |  |  |  | 191 |  | 620 |
Net Carrying Amount |  |  |  |  | 96,016 |  |  |
Net Carrying Amount |  |  |  |  |  |  | $ 240,364 |
Interest expense |  |  |  |  |  |  |  |
Contractual interest expense |  |  |  |  | 1,084 | 1,280 |  |
Amortization of debt issuance costs |  |  |  |  | 122 | 141 |  |
Total interest and amortization expense |  |  |  |  | $ 1,206 | $ 1,421 |  |
2023 Notes | Convertible subordinated notes | Privately-negotiated capped call option |  |  |  |  |  |  |  |
Debt |  |  |  |  |  |  |  |
Payments for capped call options |  |  |  | $ 36,800 |  |  |  |
Number of derivative instruments purchased | Item |  |  |  | 2 |  |  |  |
Strike price for the underlying number of shares (in dollars per share) | $ / shares |  | $ 27.79 | $ 19.77 | $ 27.79 |  |  |  |
Cap price for the underlying number of shares (in dollars per share) | $ / Item |  | 38.00 | 38.00 | 38.00 |  |  |  |
2023 Notes | Convertible subordinated notes | Stock prices below $27.79 per share | Minimum |  |  |  |  |  |  |  |
Debt |  |  |  |  |  |  |  |
Net shares settlement payable to the entity | shares |  |  |  | 0 |  |  |  |
2023 Notes | Convertible subordinated notes | Stock prices above $38.00 per share | Maximum |  |  |  |  |  |  |  |
Debt |  |  |  |  |  |  |  |
Net shares settlement payable to the entity | shares |  |  |  | 2,779,659 |  |  |  |

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