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Debt - Narrative (Details) $ / shares in Units, $ in Millions	1 Months Ended
	Apr. 30, 2021 USD ($) $ / shares	Jun. 30, 2024 USD ($)	Sep. 28, 2022 USD ($)	Nov. 30, 2013 USD ($)
Senior secured notes, 7.5% | Senior notes
Line of Credit Facility [Line Items]
Stated interest rate, percentage	7.50%	7.50%
Face amount	$ 250.0
Proceeds from issuance of Senior Notes due 2028	$ 245.2
Senior secured notes, 7.5% | Senior notes | Level 2
Line of Credit Facility [Line Items]
Fair value of debt instrument		$ 252.6
Senior convertible notes, 2.75% | Senior notes
Line of Credit Facility [Line Items]
Stated interest rate, percentage	2.75%	2.75%
Face amount	$ 86.3
Percentage of principal amount redeemed	100.00%
Proceeds from issuance of Convertible Senior Notes	$ 83.7
Conversion ratio	0.0533547
Conversion price (in dollars per share) | $ / shares	$ 18.74
Senior convertible notes, 2.75% | Senior notes | Level 2
Line of Credit Facility [Line Items]
Fair value of debt instrument		$ 94.7
U.S. revolving credit facility | Iceland revolving line of credit
Line of Credit Facility [Line Items]
Credit facility maximum amount		$ 100.0	$ 100.0	$ 50.0

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