Share-based Compensation

9 Months Ended

Sep. 30, 2021

Share-based Payment Arrangement [Abstract]

Share-based Compensation

8.        Share-based Compensation

2018 Omnibus Incentive Plan

In June 2018, the Board approved the 2018 Omnibus Incentive Plan (the “Incentive Plan”) to become effective in connection with the initial public offering. The Company had reserved an aggregate of 3.2 million shares of its Class A common stock for issuance of awards under the Incentive Plan. In May 2020, the stockholders approved the Amended and Restated Omnibus Plan which, among other things, increased the number of shares remaining to issue to 5.8 million shares. Participants in the Incentive Plan will be selected by the Compensation Committee from the executive officers, directors, employees and consultants of the Company. Awards under the Incentive Plan may be made in the form of stock options, stock appreciation rights, stock awards, restricted stock units, performance awards, performance units, and any other form established by the Compensation Committee pursuant to the Incentive Plan.

The following is a summary of the Incentive Plan restricted stock and restricted stock unit activity for the nine months ended September 30, 2021:

		Weighted
	Number of	Average Grant
	Units	Date Fair Value
Unvested at December 31, 2020	1,515,876	$	6.50
Granted	1,120,169		9.30
Vested	(565,218)		7.08
Forfeited	(146,434)		7.59
Unvested at September 30, 2021	1,924,393	$	7.90

Service based restricted stock grants vest over periods of one to five years and account for 1,693,193 of the unvested shares. Performance based awards account for 231,200 of the unvested shares and vest based upon achievement of certain performance goals, as defined by the Company. The Company recognized compensation expense related to performance based awards of $0.1 million and $0.6 million during the three and nine months ended September 30, 2021 and $0.4 million and $0.5 million during the three and nine months ended September 30, 2020, respectively. The Company recognized compensation expense related to service based awards of $1.1 million and $3.8 million during the three and nine months ended September 30, 2021 and $0.8 million and $2.2 million during the three and nine months ended September 30, 2020, respectively. At September 30, 2021, the Company had $10.5 million in unrecognized compensation expense related to the service based restricted stock awards which is expected to be recognized over a weighted average period of approximately 3.0 years.

The following is a summary of the Incentive Plan stock option activity from December 31, 2020 to September 30, 2021:

		Weighted
	Number of	Average Grant
	Units	Date Fair Value
Unvested at December 31, 2020	203,757	$	4.96
Vested	(78,974)		5.12
Unvested at September 30, 2021	124,783	$	4.86

The stock options vest over a period of four years and expire ten years from the date of grant. The Company recognized compensation expense of $0.1 million and $0.3 million during the three and nine months ended September 30, 2021 and $0.1 million and $0.2 million during the three and nine months ended September 30, 2020, respectively. The fair value of the stock options granted was estimated using the Black-Scholes method as of the grant date.

At September 30, 2021, the Company had $0.3 million in unrecognized compensation expense related to the stock option awards which is expected to be recognized over a weighted average period of approximately 1.1 years. As of September 30, 2021, 191,116 options were exercisable with a weighted average exercise price of $12.84 and a weighted average remaining contractual life of 7.1 years.

Pre-IPO Restricted Stock Units

The following is a summary of the activity related to restricted stock units issued prior to the IPO for nine months ended September 30, 2021:

	Number of	Weighted
	Units	Average
Unvested at December 31, 2020	625,030	$	2.15
Vested	(164,990)		2.15
Unvested at September 30, 2021	460,040	$	2.15

The vesting schedule for these restricted unit grants range from 3 to 7 years. The Company recognized compensation expense of $0.1 million and $0.3 million during the three and nine months ended September 30, 2021 and $0.1 million and $0.3 million during the three and nine months ended September 30, 2020, respectively. At September 30, 2021, the Company had approximately $0.8 million in unrecognized compensation expense related to restricted units, which is expected to be recognized over a weighted average period of approximately 2.4 years. The fair value of the restricted units and corresponding compensation expense was determined using the income approach.

Employee Stock Purchase Plan

In June 2018, our Employee Stock Purchase Plan (the “ESPP”) became effective. The Company has reserved an aggregate of 2.3 million shares of its Class A common stock for issuance under the ESPP. Eligible employees may elect to purchase shares of our Class A common stock through payroll deductions up to 15% of eligible compensation. The purchase price of the shares during each offering period will be 85% of the lower of the fair market value of our Class A common stock on the first trading day of each offering period or the last trading day of the offering period. The common stock will be purchased in January and July of each year. The Company recognized compensation expense of $0.1 million and $0.3 million for the three and nine months ended September 30, 2021 and $0.1 million and $0.2 million for the three and nine months ended September 30, 2020, respectively, associated with the plan.