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The percentage above the last reported sale price of the Company's common stock.

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Debt Instrument, Ratio of repurchase price to the principal amount of debt instrument that was repurchased.

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Portion of debt instrument face amount, exercised.

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Purchases of capped calls In connection with convertible senior notes.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Face (par) amount of the original debt instrument that was repurchased.

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The cash outflow paid to third parties in connection with debt origination, which will be amortized over the remaining maturity period of the associated long-term debt.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (e)
-URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3291-108585

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- Definition

The cash outflow for cost incurred directly with the issuance of an equity security.

+ References

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- Definition

The cash inflow from the issuance of a long-term debt instrument which can be exchanged for a specified amount of another security, typically the entity's common stock, at the option of the issuer or the holder.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3255-108585

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- Definition

Price of a single share of a number of saleable stocks of a company.

+ References

No definition available.

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Debt - Convertible Senior Notes (Details) $ / shares in Units, $ in Thousands		1 Months Ended	3 Months Ended			6 Months Ended		12 Months Ended
	Aug. 07, 2017 USD ($) $ / shares	Jan. 31, 2013 USD ($) $ / shares $ / Item	Jun. 30, 2022 USD ($)	Mar. 31, 2022 USD ($) $ / shares $ / Item	Jun. 30, 2021 USD ($) $ / shares	Jun. 30, 2022 USD ($)	Jun. 30, 2021 USD ($) $ / shares	Dec. 31, 2021 USD ($)	Apr. 30, 2022 USD ($)	Apr. 18, 2022 USD ($)	Mar. 07, 2022 USD ($)	Jan. 01, 2022	Aug. 01, 2017 $ / shares	Dec. 31, 2016 USD ($)	Jul. 31, 2014 $ / shares $ / Item
Liability component
Principal			$ 549,704			$ 549,704		$ 433,484
Debt discount and issuance costs, net			(10,454)			$ (10,454)		(38,831)
2025 Notes
Debt
Debt discount								67,300
Common stock price to current conversion price ratio						130.00%
Average trading price percentage						98.00%
Total issuance costs								5,400
Liability issuance costs								3,500
Equity issuance costs								$ 1,900
Effective interest rate								8.87%
2025 Notes \| ASU 2020-06
Debt
Effective interest rate												2.88%
2025 Notes \| Common stock
Debt
Share Price \| $ / shares													$ 13.28
Convertible senior notes \| 2025 Notes
Debt
Ratio of repurchase price to the principal amount						100.00%
Liability component
Principal			192,500			$ 192,500		$ 192,500
Debt discount and issuance costs, net			(2,265)			(2,265)		(38,211)
Net Carrying Amount			190,235			190,235		154,289
Equity component, net			0			0		65,361
Interest expense
Contractual interest expense			1,203		$ 1,203	2,406	$ 2,406
Amortization of debt issuance costs			172		162	343	321
Amortization of debt discount			0		1,951	0	3,862
Total interest and amortization expense			$ 1,375		$ 3,316	$ 2,749	$ 6,589
Convertible senior notes \| 2025 Notes \| Over-Allotment Option
Debt
Loan amount	$ 17,500
Convertible senior notes \| 2025 Notes \| Private Placement
Debt
Loan amount	$ 192,500
Debt Instrument, annual interest rate	2.50%
Convertible senior notes \| 2025 Notes \| Common stock
Debt
Conversion rate for shares of common stock per $1,000 principal	57.9240
Conversion price (dollars per share) \| $ / shares	$ 17.26				$ 17.26		$ 17.26
Debt instrument maturity date	Aug. 15, 2025
Conversion premium (as a percent)	30.00%
Convertible senior notes \| 2028 Notes
Debt
Loan amount				$ 261,000
Debt instrument maturity date				Mar. 15, 2028
Proceeds from issuance of convertible notes, net of issuance costs				$ 252,600
Common stock price to current conversion price ratio				130.00%
Average trading price percentage				98.00%
Ratio of repurchase price to the principal amount				100.00%
Portion of debt instrument face amount, Exercised				$ 36,000
Effective interest rate			2.70%			2.70%
Liability component
Principal			$ 261,000			$ 261,000		0
Debt discount and issuance costs, net			(8,057)			(8,057)
Net Carrying Amount			252,943			252,943
Interest expense
Contractual interest expense			1,387			1,756
Amortization of debt issuance costs			323			407
Total interest and amortization expense			1,710			$ 2,163
Convertible senior notes \| 2028 Notes \| Privately-negotiated capped call option
Debt
Cap price for the underlying number of shares (in dollars per share) \| $ / Item				33.9850
Purchases of capped calls in connection with convertible senior notes due 2028				$ 21,000
Convertible senior notes \| 2028 Notes \| Over-Allotment Option
Debt
Loan amount				$ 45,000
Convertible senior notes \| 2028 Notes \| Private Placement
Debt
Debt Instrument, annual interest rate				2.125%
Convertible senior notes \| 2028 Notes \| Common stock
Debt
Conversion rate for shares of common stock per $1,000 principal				38.1432
Conversion price (dollars per share) \| $ / shares				$ 26.22
Convertible subordinated notes \| Privately-negotiated capped call option
Debt
Cap price for the underlying number of shares (in dollars per share) \| $ / Item															27.04
Convertible subordinated notes \| 2023 Notes
Debt
Loan amount		$ 287,500
Debt Instrument, annual interest rate		2.125%
Conversion price (dollars per share) \| $ / shares		$ 27.79													$ 19.77
Debt instrument maturity date		Jan. 15, 2023
Ratio of repurchase price to the principal amount						100.00%
Effective interest rate											2.37%
Debt Instrument, Repurchased Face Amount				$ 144,800							$ 144,800			$ 14,100
Liability component
Principal			96,204			$ 96,204		240,984		$ 96,200	$ 96,200
Debt discount and issuance costs, net			(132)			(132)		$ (620)	$ (200)
Interest expense
Contractual interest expense			511		$ 1,280	1,595	$ 2,560
Amortization of debt issuance costs			59		147	181	288
Total interest and amortization expense			$ 570		$ 1,427	$ 1,776	$ 2,848
Convertible subordinated notes \| 2023 Notes \| Privately-negotiated capped call option
Debt
Cap price for the underlying number of shares (in dollars per share) \| $ / Item		38.00													38.00