Capital Stock (Details) - USD ($)	1 Months Ended			12 Months Ended
	May 31, 2021	Dec. 31, 2020	Jun. 30, 2019	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Class of Stock [Line Items]
Common stock, par value (in dollars per share)		$ 0.0001		$ 0.0001	$ 0.0001
Price per share issued (in dollars per share)		$ 17.50	$ 16.40		$ 17.50
Costs incurred in connection with offering				$ 207,000	$ 5,448,000	$ 123,000
Proceeds from public offering		$ 80,800,000
Proceeds from exercises of stock options				5,180,000	$ 1,323,000	$ 7,099,000
PSC
Class of Stock [Line Items]
Sale of stock, period	3 years
Sale of stock, value of shares for issuance				$ 50,000,000
Sale of stock, commissions, percentage of gross sales price	3.00%
Issuance of common stock, net of issuance costs (in shares)				0
PSC | Maximum
Class of Stock [Line Items]
Sale of stock, value of shares for issuance	$ 50,000,000
Sale of stock, commissions and reimbursements, percentage of gross sales price	8.00%
Underwritten Public Offering
Class of Stock [Line Items]
Issuance of common stock, net of issuance costs (in shares)		4,900,000
Gross proceeds from public offering		$ 86,300,000
Public Offering, Underwriting Discounts
Class of Stock [Line Items]
Costs incurred in connection with offering		5,200,000
Public Offering, Direct Offering Costs
Class of Stock [Line Items]
Costs incurred in connection with offering		$ 300,000
Private Placement
Class of Stock [Line Items]
Issuance of common stock, net of issuance costs (in shares)			3,048,780
Costs incurred in connection with offering			$ 100,000
Proceeds from exercises of stock options			$ 49,900,000