Net Loss Per Share - AntiDilutive Common Share Equivalents (Details) - shares	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti–dilutive common share equivalents (in shares)	2,363,317	2,010,981
Stock options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti–dilutive common share equivalents (in shares)	320,840	345,792
Restricted stock awards
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti–dilutive common share equivalents (in shares)	197,623	773,860
Restricted stock units
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti–dilutive common share equivalents (in shares)	1,778,557	891,329
Performance restricted stock units
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti–dilutive common share equivalents (in shares)	66,297	0