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v3.22.2

Long-Term Debt - Convertible Senior Notes Due 2023 (Details) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2022 USD ($) $ / shares | Jun. 30, 2021 USD ($) | Jun. 30, 2022 USD ($) $ / shares shares | Jun. 30, 2021 USD ($)
Debt Instrument [Line Items] |  |  |  |
Interest expense | $ 5,034,000 | $ 5,943,000 | $ 10,341,000 | $ 12,055,000
Amortization of debt issuance costs |  |  | $ 1,161,000 | 1,587,000
Convertible Senior Notes Maturing September 2023 |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Interest rate (as a percent) | 4.125% |  | 4.125% |
Frequency of periodic payment |  |  | semi-annually |
Maturity date |  |  | Sep. 15, 2023 |
Initial conversion ratio |  |  | 0.1056133 |
Aggregate number of shares | shares |  |  | 3,168,399 |
Initial conversion price per share (USD per share) | $ / shares | $ 9.47 |  | $ 9.47 |
Increase in the conversion rate |  |  | 0.0475260 |
Redemption price as a percentage of principal amount |  |  | 100.00% |
Effective interest rate (as a percent) | 4.80% |  | 4.80% |
Interest expense | $ 300,000 | 300,000 | $ 700,000 | 700,000
Coupon interest expense | $ 300,000 | $ 300,000 | 600,000 | 600,000
Amortization of debt issuance costs |  |  | $ 100,000 | $ 100,000
Convertible Senior Notes Maturing September 2023 | Maximum |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Percentage of closing price of common stock to conversion price |  |  | 130.00% |
Number of trading days |  |  | 20 |
Number of consecutive trading days |  |  | 30 |
Convertible Senior Notes Maturing September 2023 | Minimum |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Percentage of closing price of common stock to conversion price |  |  | 97.00% |
Number of trading days |  |  | 5 |
Number of consecutive trading days |  |  | 10 |

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