Debt and Credit Facilities - Schedule of Debt (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Short-term debt	$ 50,000	$ 50,000
Convertible senior notes	400,000	400,000
Debt discount		(51,138)
Long-term debt issuance costs	(9,124)	(8,864)
Total long-term	590,876	539,998
Total Debt	640,876	589,998
Senior Notes
Debt Instrument [Line Items]
Short-Term	50,000	50,000
Long-term debt	$ 200,000	$ 200,000

Including the current and noncurrent portions, carrying value as of the balance sheet date of a written promise to pay a note, initially due after one year or beyond the operating cycle if longer, which can be exchanged for a specified amount of one or more securities (typically common stock), at the option of the issuer or the holder.

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