Earnings (Loss) per Share - Anti-Dilutive Securities Excluded from Computation of Earnings Per Share (Details) - shares	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Stock Options
Anti-dilutive stock options
Ordinary share equivalents excluded from the calculations of diluted earnings per share	1,052,838	816,891	609,134
Restricted Stock Units ("RSUs")
Anti-dilutive stock options
Ordinary share equivalents excluded from the calculations of diluted earnings per share	239,384	105,169	137,210
Warrants
Anti-dilutive stock options
Ordinary share equivalents excluded from the calculations of diluted earnings per share	5,438,842	1,379,310