DEBT - Convertible Senior Notes (Details) $ / shares in Units, $ in Thousands			3 Months Ended	12 Months Ended
	Mar. 07, 2022 USD ($)	Aug. 07, 2017 USD ($) $ / shares	Mar. 31, 2022 USD ($) $ / shares $ / Item	Dec. 31, 2022 USD ($) $ / shares	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Apr. 18, 2022 USD ($)	Jan. 01, 2022	Aug. 01, 2017 $ / shares	Dec. 31, 2016 USD ($)	Jul. 31, 2014 $ / Item	Jan. 31, 2013 USD ($) $ / shares $ / Item
Debt
Payment for repurchase of debt instrument				$ 165,131	$ 0	$ 0
Liability component
Principal				549,704	433,484
Debt discount and issuance costs, net				$ (9,331)	(38,831)
2023 Notes | Privately-negotiated capped call option
Debt
Cap price for the underlying number of shares (in dollars per share) | $ / Item											27.04
2025 Notes
Debt
Common stock price to current conversion price ratio				130.00%
Average trading price percentage				98.00%
Effective interest rate				8.87%
Total issuance costs				$ 5,400
Liability issuance costs				3,500
Equity issuance costs				1,900
2025 Notes | ASU 2020-06
Debt
Unamortized Debt discount				$ 67,300
Effective interest rate								2.88%
2025 Notes | Common stock
Debt
Share Price | $ / shares									$ 13.28
2028 Notes
Debt
Debt instrument, covenant terms description				The indenture governing the 2028 Notes contains customary terms and covenants, including a merger covenant and that upon certain events of default occurring and continuing, either the Trustee or the holders of at least 25% of the aggregate principal amount of the outstanding Notes may declare 100% of the principal of, and accrued and unpaid interest, if any, on, all the Notes to be due and payable immediately.
Convertible senior notes | 2025 Notes
Debt
Ratio of repurchase price to the principal amount				100.00%
Liability component
Principal				$ 192,500	192,500
Debt discount and issuance costs, net				(1,917)	(38,211)
Net carrying amount				190,583	154,289
Equity component, net				0	65,361
Interest expense
Contractual interest expense				4,813	4,813	4,813
Amortization of debt issuance costs				692	657	601
Amortization of debt discount				0	7,898	7,230
Total interest and amortization expense				$ 5,505	13,368	12,644
Convertible senior notes | 2025 Notes | Over-Allotment Option
Debt
Loan amount		$ 17,500
Portion of debt instrument face amount, Exercised		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
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%
Effective interest rate				2.70%
Liability component
Principal				$ 261,000	0
Debt discount and issuance costs, net				(7,403)
Net carrying amount				253,597
Interest expense
Contractual interest expense				4,514
Amortization of debt issuance costs				1,061
Total interest and amortization expense				5,575
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
Portion of debt instrument face amount, Exercised			$ 36,000
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 | 2023 Notes
Debt
Loan amount												$ 287,500
Debt Instrument, annual interest rate												2.125%
Conversion price (dollars per share) | $ / shares												$ 27.79
Debt Instrument, Repurchased Face Amount	$ 144,800		$ 144,800							$ 14,100
Payment for repurchase of debt instrument	165,600		$ 165,600
Liability component
Principal	96,200			96,204	240,984		$ 96,200
Debt discount and issuance costs, net	$ (200)			(11)	(620)
Interest expense
Contractual interest expense				2,617	5,121	5,121
Amortization of debt issuance costs				302	580	567
Total interest and amortization expense				$ 2,919	$ 5,701	$ 5,688
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