CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (Parenthetical) - shares	3 Months Ended
	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019	Mar. 31, 2019
CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY
Issuance of shares of Common Stock upon exercise of stock options and restricted stock units	936,688	772,538	400,292	1,044,745
Issuance of shares of Common Stock under the ESPP	175,615		143,379
Issuance of shares of Common Stock for services rendered	1,403	1,957	1,444	1,200
Issuance of shares of Common Stock upon conversion of convertible senior notes	3,187