Stockholders' Equity (Details) $ / shares in Units, $ in Thousands					3 Months Ended				9 Months Ended		10 Months Ended
	Apr. 07, 2022 USD ($)	Mar. 01, 2022 USD ($)	Feb. 25, 2021 USD ($)	Mar. 12, 2020 USD ($)	Mar. 31, 2022 USD ($) shares	Sep. 30, 2021 shares	Jun. 30, 2021 shares	Mar. 31, 2021 USD ($) shares	Sep. 30, 2022 USD ($) installment stock_incentive_plan $ / shares shares	Sep. 30, 2021 USD ($) shares	Dec. 31, 2021 USD ($) $ / shares shares	Dec. 31, 2020 USD ($) shares	Jun. 30, 2022 shares	Jun. 04, 2020 shares	Feb. 28, 2014 shares
Class of Stock [Line Items]
Common stock, authorized (in shares)									350,000,000		350,000,000			175,000,000
Common stock, par value (in dollars per share) | $ / shares									$ 0.00001		$ 0.00001
Common stock, issued (in shares)									183,951,583		177,000,963
Common stock, outstanding (in shares)									183,951,583		177,000,963
Preferred stock, shares authorized (in shares)									25,000,000		25,000,000
Preferred stock, par value (in dollars per share) | $ / shares									$ 0.00001		$ 0.00001
Preferred stock, issued (in shares)									0		0
Preferred stock, outstanding (in shares)									0		0
Proceeds from the issuance of common stock, net of issuance costs | $									$ 7,122	$ 82,799
Number of stock incentive plans | stock_incentive_plan									1
At The Market Equity Offering Program Authorized February 2021 | Maximum
Class of Stock [Line Items]
Common stock sales agreement amount | $			$ 100,000
At The Market Equity Offering Program Authorized March 2022 | Maximum
Class of Stock [Line Items]
Common stock sales agreement amount | $		$ 25,300
Open Market Sale Agreement, Authorized April 2022 | Maximum
Class of Stock [Line Items]
Common stock sales agreement amount | $	$ 26,000
Inducement Award Program
Class of Stock [Line Items]
Number of shares granted									400,000
Number of shares outstanding									266,000
Share-based Payment Arrangement, Option
Class of Stock [Line Items]
Expiration period									10 years
Share-based Payment Arrangement, Option | Maximum
Class of Stock [Line Items]
Vesting period									48 months
Share-based Payment Arrangement, Option | Minimum
Class of Stock [Line Items]
Vesting period									12 months
Share-based Payment Arrangement, Option | Share-based Compensation Award, Tranche, First Anniversary of Grant Date
Class of Stock [Line Items]
Vesting percentage									100.00%
Share-based Payment Arrangement, Option | Share Based Compensation Award Tranche One
Class of Stock [Line Items]
Vesting period									1 year
Vesting percentage									25.00%
Share-based Payment Arrangement, Option | Share Based Compensation Award Tranche Two
Class of Stock [Line Items]
Vesting period									1 year
Number of equal quarterly installments | installment									12
Service-Based Restricted Stock Units | Share-based Compensation Award, Tranche, First Anniversary of Grant Date
Class of Stock [Line Items]
Vesting period									1 year
Vesting percentage									100.00%
Service-Based Restricted Stock Units | Share Based Compensation Award Tranche One
Class of Stock [Line Items]
Vesting period									1 year
Vesting percentage									50.00%
Service-Based Restricted Stock Units | Share Based Compensation Award Tranche Two
Class of Stock [Line Items]
Vesting period									6 months
Vesting percentage									25.00%
Award vesting grace period									1 year
Service-Based Restricted Stock Units | Share-Based Payment Arrangement, Tranche One, First Anniversary After Grant Date, Subjected To Individual Continued Service
Class of Stock [Line Items]
Vesting period									1 year
Vesting percentage									33.33%
Service-Based Restricted Stock Units | Share-Based Payment Arrangement, Tranche Two, Second Anniversary After Grant Date, Subjected To Individual Continued Service
Class of Stock [Line Items]
Vesting period									2 years
Vesting percentage									33.33%
Service-Based Restricted Stock Units | Share-Based Payment Arrangement, Tranche Three, Third Anniversary After Grant Date, Subjected To Individual Continued Service
Class of Stock [Line Items]
Vesting period									3 years
Vesting percentage									33.33%
Service-Based Restricted Stock Units | Share-Based Payment Arrangement, Tranche One, First Anniversary After Grant Date
Class of Stock [Line Items]
Vesting period									1 year
Vesting percentage									33.33%
Service-Based Restricted Stock Units | Share-Based Payment Arrangement, Tranche Two, Following First Anniversary After Grant Date
Class of Stock [Line Items]
Vesting period									2 years
Vesting percentage									66.67%
Award vesting grace period									1 year
Common Stock
Class of Stock [Line Items]
Common stock, outstanding (in shares)					183,386,035	174,551,989	169,651,423	158,520,089	183,951,583	174,551,989	177,000,963	148,074,085	183,704,654
Issuance of common stock, net of issuance costs (in shares)					4,404,600	4,730,466	10,446,160	9,228,017
Common Stock | At The Market Equity Offering Program Authorized February 2021
Class of Stock [Line Items]
Issuance of common stock, net of issuance costs (in shares)											21,128,065
Proceeds from the issuance of common stock, net of issuance costs | $											$ 72,400
Common Stock | At The Market Equity Offering Program Authorized March 2022
Class of Stock [Line Items]
Issuance of common stock, net of issuance costs (in shares)					404,600
Proceeds from the issuance of common stock, net of issuance costs | $					$ 800
At The Market Equity Offering Program | Maximum
Class of Stock [Line Items]
Common stock sales agreement amount | $				$ 65,000
At The Market Equity Offering Program | Common Stock
Class of Stock [Line Items]
Issuance of common stock, net of issuance costs (in shares)								5,224,278				3,509,381
Proceeds from the issuance of common stock, net of issuance costs | $								$ 15,900				$ 10,600
2014 Plans
Class of Stock [Line Items]
Common stock, reserved for future issuance (in shares)															1,785,000
Incremental rate at which the shares reserved for issuance increase									3.00%
2014 Plans | Share-based Payment Arrangement, Option | Employees
Class of Stock [Line Items]
Number of shares granted									3,233,500
2014 Plans | Share-based Payment Arrangement, Option | Director
Class of Stock [Line Items]
Number of shares granted									140,700
2014 Plans | Performance Shares
Class of Stock [Line Items]
Number of shares granted									400,000
2014 Plans | Service-Based Restricted Stock Units | Employees
Class of Stock [Line Items]
Number of shares granted (in shares)									5,216,908
2014 Plans | Service-Based Restricted Stock Units | Director
Class of Stock [Line Items]
Number of shares granted (in shares)									95,900
2014 Plans | Performance-Based Restricted Stock Units
Class of Stock [Line Items]
Number of shares granted (in shares)									400,000
2014 Employee Stock Purchase Plan
Class of Stock [Line Items]
Common stock, reserved for future issuance (in shares)									4,837,995
Offering period									6 months
Purchase price at the end of offering period									85.00%
Number of shares issued									335,146