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Debt - Narrative (Details) |  |  |  |  | 1 Months Ended | 3 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | --- | --- | ---
May 14, 2021 | Apr. 14, 2021 USD ($) | Apr. 09, 2021 USD ($) $ / shares | Apr. 07, 2021 USD ($) $ / shares | Apr. 30, 2021 USD ($) | Jun. 30, 2021 USD ($) | Dec. 31, 2021 USD ($) payment | Dec. 31, 2020 USD ($) | Dec. 31, 2019 USD ($)
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |
Proceeds from issuance of Senior Notes due 2028 |  |  |  |  |  |  | $ 250,000,000.0 | $ 0 | $ 0
Loss on early extinguishment of debt |  |  |  |  |  |  | 24,700,000 | 1,200,000 | 0
Proceeds from issuance of Convertible Senior Notes |  |  |  |  |  |  | $ 86,300,000 | $ 0 | $ 0
Senior Notes |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |
Loss on early extinguishment of debt |  |  |  |  | $ 24,700,000 |  |  |  |
Redemption premium |  |  |  |  | 18,100,000 |  |  |  |
Write off of deferred financing cost |  |  |  |  | 4,400,000 |  |  |  |
Debt discount |  |  |  |  | $ 2,200,000 |  |  |  |
Senior Secured Notes, 7.5% | Senior Notes |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |
Face amount |  | $ 250,000,000 |  |  |  |  |  |  |
Stated interest rate |  | 7.50% |  |  |  |  | 7.50% |  |
Proceeds from issuance of Senior Notes due 2028 |  | $ 245,200,000 |  |  |  |  |  |  |
Redemption price, percentage |  |  |  |  |  |  | 100.00% |  |
Redemption period |  |  |  |  |  |  | 12 months |  |
Percentage of outstanding amount, offer to purchase |  |  |  |  |  |  | 101.00% |  |
Senior Secured Notes, 7.5% | Senior Notes | Level 2 |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |
Fair value of debt instrument |  |  |  |  |  |  | $ 264,700,000 |  |
Senior Secured Notes, 12.0% | Senior Notes |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |
Stated interest rate |  |  |  |  | 12.00% |  |  | 12.00% |
Redemption price, percentage | 107.00% |  |  |  |  |  |  |  |
Repurchased face amount |  |  |  |  | $ 195,900,000 |  |  |  |
Debt discount |  |  |  |  |  |  |  | $ 2,300,000 |
Senior Convertible Notes, 2.75% | Senior Notes |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |
Face amount |  |  | $ 86,300,000 |  |  |  |  |  |
Stated interest rate |  |  |  |  |  |  | 2.75% |  |
Debt instrument, redemption price, percentage of principal amount redeemed |  |  | 100.00% |  |  |  | 100.00% |  |
Proceeds from issuance of Convertible Senior Notes |  |  | $ 83,700,000 |  |  |  |  |  |
Debt instrument, convertible, conversion ratio |  |  |  |  |  |  | 0.0533547 |  |
Debt Instrument, convertible, conversion price (USD per share) | $ / shares |  |  | $ 18.74 |  |  |  |  |  |
Debt instrument, convertible, threshold percentage of stock price trigger |  |  |  |  |  |  | 130.00% |  |
Debt instrument, trading days, term |  |  |  |  |  |  | 20 days |  |
Debt instrument, consecutive trading days, term |  |  |  |  |  |  | 30 days |  |
Senior Convertible Notes, 2.75% | Senior Notes | Level 2 |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |
Fair value of debt instrument |  |  |  |  |  |  | $ 98,600,000 |  |
Senior Convertible Notes, 2.75% | Call Option |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |
Option indexed to issuer's equity, issuance cost |  |  |  | $ 5,700,000 |  |  |  |  |
Option, strike price (USD per share) | $ / shares |  |  |  | $ 18.74 |  |  |  |  |
Option, cap price (USD per share) | $ / shares |  |  |  | $ 22.95 |  |  |  |  |
Derivative, loss on derivative |  |  |  |  |  | $ 1,000,000 |  |  |
E.ON Contingent Obligation | Long-term Debt |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |
Stated interest rate |  |  |  |  |  |  | 10.94% |  |
Number of monthly installments | payment |  |  |  |  |  |  | 72 |  |
Realized gain (loss) on contingent obligation |  |  |  |  |  |  | $ 1,400,000 |  |
Revolving Credit Facility | LIBOR |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |
Debt instrument, basis spread on variable rate |  |  |  |  |  |  | 5.375% |  |

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