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

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Indebtedness - Additional Information (Details)			1 Months Ended	6 Months Ended
Indebtedness - Additional Information (Details)	May 21, 2020 USD ($) day $ / shares shares	May 02, 2019 USD ($) Tranche	May 31, 2020 USD ($)	Jun. 30, 2020 USD ($)
Debt Instrument [Line Items]
Proceeds from issuance of convertible debt, net				$ 193,596,000
Term Loan \| Credit Facility
Debt Instrument [Line Items]
Maximum borrowing capacity		$ 150,000,000
Amount funded		$ 30,000,000
Number of additional tranches \| Tranche		3
Remaining borrowing capacity		$ 120,000,000
Interest only payment period		36 months
Maturity date		May 01, 2024
Percentage of exit fee on amount borrowed on final repayment		1.75%
Percentage of exit fee on amount borrowed on partial prepayment		1.75%
Debt covenant minimum unrestricted cash percentage		25.00%
Minimum indebtedness amount				$ 2,500,000
Term Loan \| Credit Facility \| Prepayment Occurs through First Anniversary of Closing Date
Debt Instrument [Line Items]
Percentage of prepayment fee		3.00%
Term Loan \| Credit Facility \| First Anniversary of Closing Date through Second Anniversary of Closing Date
Debt Instrument [Line Items]
Percentage of prepayment fee		2.00%
Term Loan \| Credit Facility \| Second Anniversary of Closing Date and Prior to May 1, 2024
Debt Instrument [Line Items]
Percentage of prepayment fee		1.00%
Term Loan \| Credit Facility \| LIBOR
Debt Instrument [Line Items]
Basis spread on variable rate		6.15%
Interest rate		2.00%
Debt instrument, description of variable rate basis		Each term loan under the Credit Facility bears interest at an annual rate equal to the sum of (i) one-month LIBOR (customarily defined, with a change to prime rate if LIBOR funding becomes unlawful or impractical) plus (ii) 6.15%, subject to a LIBOR floor of 2.00%.
Debt instrument interest rate percentage		2.00%
Term Loan \| Credit Facility \| MidCap Financial Trust
Debt Instrument [Line Items]
Basis spread on variable rate				3.00%
Term Loan \| Tranche One \| Credit Facility
Debt Instrument [Line Items]
Remaining borrowing capacity		$ 40,000,000
Term Loan \| Tranche Two \| Credit Facility
Debt Instrument [Line Items]
Remaining borrowing capacity		30,000,000
Term Loan \| Tranche Three \| Credit Facility
Debt Instrument [Line Items]
Remaining borrowing capacity		$ 50,000,000
5.00% Convertible Senior Notes Due 2027
Debt Instrument [Line Items]
Interest rate	5.00%			5.00%
Maturity date	Jun. 01, 2027
Debt instrument aggregate principal amount	$ 200,000,000
Debt instrument interest rate percentage	5.00%			5.00%
Debt instrument commencing date	Dec. 01, 2020
Proceeds from issuance of convertible debt, net	$ 193,600,000
Convertible notes, shares issued \| shares	61.6095
Convertible notes, principal amount	$ 1,000
Convertible notes, initial conversion price \| $ / shares	$ 16.23
Convertible notes, percentage of conversion price	130.00%
Convertible notes, conversion description				Holders may convert their notes at their option only in the following circumstances: (1) during any calendar quarter (and only during such calendar quarter) commencing after the calendar quarter ending on September 30, 2020, if the last reported sale price per share of the Company’s common stock exceeds 130% of the conversion price for each of at least 20 trading days (whether or not consecutive) during the 30 consecutive trading days ending on, and including, the last trading day of the immediately preceding calendar quarter; (2) during the five consecutive business days immediately after any 10 consecutive trading day period (such 10 consecutive trading day period, the “measurement period”) in which the trading price per $1,000 principal amount of notes for each trading day of the measurement period was less than 98% of the product of the last reported sale price per share of the Company’s common stock on such trading day and the conversion rate on such trading day; (3) upon the occurrence of certain corporate events or distributions on the Company’s common stock; (4) if the Company calls such notes for redemption; and (5) at any time from, and including, March 1, 2027 until the close of business on the scheduled trading day immediately before the maturity date.
Convertible notes, redemption percentage			100.00%
Convertible notes, redemption description				The Company will not have the right to redeem the 2027 Notes prior to June 6, 2024. On or after June 6, 2024 and on or before the 50th scheduled trading day immediately before the maturity date, the Company may redeem the 2027 Notes, in whole or in part, if the last reported sale price of the Company’s common stock has been at least 130% of the conversion price then in effect on (1) each of at least 20 trading days (whether or not consecutive) during the 30 consecutive trading days ending on, and including, the trading day immediately before the date the Company sends the related redemption notice; and (2) the trading day immediately before the date the Company sends such notice. In the case of any optional redemption, the Company will redeem the 2027 Notes at a redemption price equal to 100% of the principal amount of such Notes to be redeemed, plus accrued and unpaid interest to, but excluding, the redemption date.
Percentage of repurchase price is equal to principal amount of convertible notes			100.00%
Debt indenture description				The indenture governing the 2027 Notes provides for customary terms and covenants, including that upon certain events of default, either the trustee or the holders of not less than 25% in aggregate principal amount of the 2027 Notes then outstanding may declare the unpaid principal amount of the 2027 Notes and accrued and unpaid interest, if any, thereon immediately due and payable. In the case of certain events of bankruptcy, insolvency or reorganization, the principal amount of the 2027 Notes together with accrued and unpaid interest, if any, thereon will automatically become and be immediately due and payable.
Carrying amount of the equity component			$ 53,000,000
Convertible notes, effective interest rate			11.17%
Debt issuance costs			$ 400,000
Amortization of interest expense			$ 300,000
5.00% Convertible Senior Notes Due 2027 \| Maximum
Debt Instrument [Line Items]
Convertible notes, percentage of last reported sale price of common stock	98.00%
5.00% Convertible Senior Notes Due 2027 \| 130% Applicable Conversion Price \| Minimum
Debt Instrument [Line Items]
Convertible notes, consecutive trading days \| day	20
5.00% Convertible Senior Notes Due 2027 \| 130% Applicable Conversion Price \| Maximum
Debt Instrument [Line Items]
Convertible notes, consecutive trading days \| day	30
5.00% Convertible Senior Notes Due 2027 \| 98% Applicable Conversion Price \| Minimum
Debt Instrument [Line Items]
Convertible notes, consecutive trading days \| day	5
5.00% Convertible Senior Notes Due 2027 \| 98% Applicable Conversion Price \| Maximum
Debt Instrument [Line Items]
Convertible notes, consecutive trading days \| day	10