Stock-based Compensation (Tables)

12 Months Ended

Dec. 31, 2020

Stock Based Compensation [Abstract]

Schedule of Equity Compensation Plan

Information about our equity compensation plans as of December 31, 2020 is as follows:

	Number of Common Shares to be Issued Upon Exercise of Outstanding Options, Warrants and Rights		Weighted Average Exercise Price of Outstanding Options, Warrants and Rights		Number of Common Shares Remaining Available for Future Issuance Under Equity Compensation Plans
Equity compensation plans approved by our shareholders
2020 Long-Term Incentive Plan		1,057,146		—		952,697
2014 Nonemployee Director Stock Incentive Plan		87,042		—		560,658
Total		1,144,188				1,513,355

Schedule of Nonvested Restricted Stock Units Activity

Non-vested restricted share awards outstanding as of December 31, 2020 and changes during the year under both the Plan and the Director Plan are as follows:

	Number of Shares			Weighted Average Grant Date Fair Value per Share
Non-vested at December 31, 2019		670,697		$	75.93
Granted		747,632		$	22.01
Vested		(208,168	)	$	92.85
Forfeited		(67,689	)	$	64.71
Non-vested at December 31, 2020		1,142,472		$	38.23

Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs

Stock-based compensation expense under both the Plan and the Director Plan recognized in the income statement is as follows (in thousands):

	December 31,
	2020		2019		2018
Cost of product sales and services	$	5,170	$	7,288	$	8,648
General and administrative		2,224		13,591		25,546
Total stock-based compensation expense	$	7,394	$	20,879	$	34,194