Stockholders' Equity - Common Stock Reserve (Details) - Common Stock	12 Months Ended
	Dec. 31, 2019 shares
Class of Stock [Line Items]
Exercise of stock options and restricted stock awards (in shares)	729,601
Conversion of preferred stock to common stock (in shares)	2,002,979
Total shares of common stock reserved for future issuance (in shares)	2,732,580