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Long-Term Debt - Schedule of Interest (Details) - Convertible Debt - Convertible 2.25% Senior Notes Due 2026 - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Contractual Interest Expense	$ 7,762	$ 5,175
Amortization of Debt Discount	15,417	9,516
Amortization of Issuance Costs	1,034	655
Total Interest Expense	$ 24,213	$ 15,346

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Amount of noncash expense included in interest expense to amortize debt discount and premium associated with the related debt instruments. Excludes amortization of financing costs. Alternate captions include noncash interest expense.

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