Debt - Narrative (Details) $ / shares in Units, € in Millions	1 Months Ended		9 Months Ended
	Sep. 30, 2022 USD ($)	Apr. 30, 2021 USD ($) $ / shares	Sep. 30, 2022 USD ($)	Sep. 30, 2021 USD ($)	Sep. 30, 2022 EUR (€)
Line of Credit Facility [Line Items]
Proceeds from issuance of debt			$ 0	$ 250,000,000.0
Proceeds from convertible notes			$ 0	$ 86,300,000
Senior secured notes, 7.5% [Member] | Senior notes [Member]
Line of Credit Facility [Line Items]
Stated interest rate, percentage	7.50%	7.50%	7.50%		7.50%
Face amount		$ 250,000,000
Proceeds from issuance of debt		245,200,000
Senior secured notes, 7.5% [Member] | Senior notes [Member] | Level 2 [Member]
Line of Credit Facility [Line Items]
Fair value of debt instrument	$ 223,800,000		$ 223,800,000
Convertible senior notes | Senior notes [Member]
Line of Credit Facility [Line Items]
Face amount		$ 86,300,000
Percentage of principal amount redeemed		100.00%
Proceeds from convertible notes		$ 83,700,000
Conversion ratio		0.0533547
Conversion price (in dollars per share) | $ / shares		$ 18.74
Convertible senior notes | Senior notes [Member] | Level 2 [Member]
Line of Credit Facility [Line Items]
Fair value of debt instrument	$ 54,300,000		$ 54,300,000
Revolving credit facility [Member] | U.S. revolving credit facility [Member]
Line of Credit Facility [Line Items]
Stated interest rate, percentage	6.75%		6.75%		6.75%
Credit facility face amount	$ 250,000,000		$ 250,000,000
Revolving credit facility [Member] | Iceland revolving line of credit [Member]
Line of Credit Facility [Line Items]
Stated interest rate, percentage	6.62%		6.62%		6.62%
Credit facility face amount	$ 100,000,000.0		$ 100,000,000.0
Medium-term Notes
Line of Credit Facility [Line Items]
Credit facility face amount | €					€ 13.6
Medium-term Notes | EURIBOR [Member]
Line of Credit Facility [Line Items]
Debt instrument, basis spread on variable rate	3.20%