Stock-Based Compensation (Details 3) - Performance Shares [Member]	12 Months Ended
	Dec. 31, 2020 $ / shares shares
Number of Units (in shares)
Outstanding and unvested, beginning of period | shares	476,711
Granted | shares	533,204
Vested | shares	(59,102)
Forfeited | shares	(210,759)
Outstanding and unvested, end of period | shares	740,054
Weighted average grant date fair value
Outstanding and unvested, beginning of period (in dollars per share) | $ / shares	$ 18.67
Granted (in dollars per share) | $ / shares	5.52
Vested (in dollars per share) | $ / shares	7.08
Forfeited (in dollars per share) | $ / shares	18.65
Outstanding and unvested, end of period (in dollars per share) | $ / shares	$ 10.13