Liability Related to the Revenue Interest Purchase Agreement - Summary (Details) - USD ($)				1 Months Ended		12 Months Ended
	May 16, 2021	Apr. 26, 2021	Jun. 26, 2019	Mar. 31, 2020	Jun. 30, 2019	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Sep. 30, 2021
Liability Related to the Revenue Interest Purchase Agreement
Restricted cash						$ 50,000,000
Interest expense recognized						46,353,000	$ 22,670,000	$ 8,120,000
Revenue Interest Purchase Agreement (RIPA)
Liability Related to the Revenue Interest Purchase Agreement
Revenue interest liability						257,039,000	176,604,000	132,544,000
Revenue interest payments						500,000
Interest expense recognized						33,900,000	$ 19,600,000	$ 8,100,000
Revenue Interest Purchase Agreement (RIPA) | Oberland
Liability Related to the Revenue Interest Purchase Agreement
Proceeds from revenue interest liability			$ 125,000,000
Total amount of subsequent installment, subject to RIPA terms and conditions			75,000,000
Amount of subsequent installment, subject to regulatory approval			25,000,000
Amount of subsequent installment, subject to achievement of Sales Threshold			50,000,000
Milestone amount for worldwide sales to receive the Third Payment			$ 100,000,000
Trailing number of months sales must be at or above milestone amount		6 months	6 months
Payment under the RIPA		$ 50,000,000		$ 25,000,000
Revenue interest rate which will take effect if annual net sales equals or exceeds the Sales Threshold by December 31, 2021			2.50%
Initial revenue interest rate			7.50%
Minimum amount of annual net sales to qualify for reduced revenue interest rate by December 31, 2021			$ 350,000,000
Percentage of invested capital received by December 31, 2024, to qualify for second reduced revenue interest rate			100.00%
Revenue interest rate if annual net sales equal or exceed the Sales Threshold and if the Purchasers receive 100% of their invested capital by December 31, 2024			0.40%
Percentage of revenue interests payment on which agreement terminates after third anniversary			195.00%
Percentage of revenue interests payment on which agreement terminates, if prior to the anniversary of the closing date, if put option is exercised			120.00%
Percentage of revenue interests payment on which agreement terminates, prior to the third anniversary of the closing date, if put option is exercised			175.00%
Percentage of revenue interests payment on which agreement terminates, after the third anniversary of the closing date, if put option is exercised	200.00%
Revenue interest payments					$ 600,000
Percentage of revenues interests payment on which agreement terminates, after third anniversary	225.00%		195.00%
Net sales threshold	$ 350,000,000
Repayment amount expected to pay in next twelve months						$ 11,300,000
Effective annual imputed interest rate (as a percent)						16.60%
Percentage of increase in royalty rate upon drawdown of third payment			33.33%
Revenue Interest Purchase Agreement (RIPA) | Oberland | Net Sales Less Than $250 Million
Liability Related to the Revenue Interest Purchase Agreement
Initial revenue interest rate	10.00%
Minimum amount of annual net sales to qualify for reduced revenue interest rate by December 31, 2021	$ 250,000,000
Hypothetical sales generated	100,000,000
Hypothetical repayment obligation	$ 10,000,000
Revenue Interest Purchase Agreement (RIPA) | Oberland | Net Sales Greater Than $250 Million But Less Than $350 Million
Liability Related to the Revenue Interest Purchase Agreement
Revenue interest rate which will take effect if annual net sales equals or exceeds the Sales Threshold by December 31, 2021	3.30%
Minimum amount of annual net sales to qualify for reduced revenue interest rate by December 31, 2021	$ 250,000,000
Hypothetical sales generated	100,000,000
Hypothetical repayment obligation	3,300,000
Revenue Interest Purchase Agreement (RIPA) | Oberland | Net Sales Greater Than $350 Million
Liability Related to the Revenue Interest Purchase Agreement
Minimum amount of annual net sales to qualify for reduced revenue interest rate by December 31, 2021	350,000,000
Hypothetical sales generated	100,000,000
Hypothetical repayment obligation	3,300,000
Revenue Interest Purchase Agreement Amendment
Liability Related to the Revenue Interest Purchase Agreement
Loss on modification of debt						$ 100,000
Revenue Interest Purchase Agreement Amendment | Oberland
Liability Related to the Revenue Interest Purchase Agreement
Payment under the RIPA		$ 50,000,000
Revenue interest rate which will take effect if annual net sales equals or exceeds the Sales Threshold by December 31, 2021		3.33%
Initial revenue interest rate		10.00%
Percentage of invested capital received by December 31, 2024, to qualify for second reduced revenue interest rate		100.00%
Percentage of revenue interests payment on which agreement terminates, prior to the third anniversary of the closing date, if put option is exercised		200.00%
Percentage of revenue interests payment on which agreement terminates, after the third anniversary of the closing date, if put option is exercised		225.00%
Annual net sales threshold		$ 350,000,000
Percentage of revenue interest payments received by December 31, 2024, to qualify for third payment applicable percentage		100.00%
Percentage of cumulative purchaser payments		100.00%
RIPA Amendment To The Security Agreement And Waiver | Oberland
Liability Related to the Revenue Interest Purchase Agreement
Specified net revenue	15,000,000
Deposit if threshold is not met	$ 50,000,000
Restricted cash									$ 50,000,000