Long-Term Debt - Convertible Senior Notes Due 2026 (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2022 USD ($) $ / shares	Sep. 30, 2021 USD ($)	Sep. 30, 2022 USD ($) $ / shares shares	Sep. 30, 2021 USD ($)
Debt Instrument [Line Items]
Interest expense	$ 4,923,000	$ 6,097,000	$ 15,264,000	$ 18,152,000
Amortization of debt issuance costs			$ 1,744,000	2,596,000
2026 Notes (mature February 2026)
Debt Instrument [Line Items]
Interest rate (as a percent)	6.75%		6.75%
Maturity date			Feb. 15, 2026
Frequency of periodic payment			semi-annually
Initial conversion ratio			0.1433795
Aggregate number of shares | shares			28,675,900
Initial conversion price per share (USD per share) | $ / shares	$ 6.97		$ 6.97
Increase in the conversion rate			0.0645207
Redemption price as a percentage of principal amount			100.00%
Effective interest rate (as a percent)	7.60%		7.60%
Interest expense	$ 3,700,000	3,700,000	$ 11,100,000	11,000,000.0
Coupon interest expense	3,400,000	3,400,000	10,100,000	10,100,000
Amortization of debt issuance costs	$ 300,000	$ 300,000	$ 1,000,000.0	$ 900,000
2026 Notes (mature February 2026) | 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
2026 Notes (mature February 2026) | 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