Stock Based Compensation (Tables)

9 Months Ended

Sep. 30, 2021

Share-based Payment Arrangement [Abstract]

Schedule of Nonvested Restricted Stock Activity

A summary of the activity of the Company's non-vested restricted stock collectively under the 2010 Plan and 2017 Plan for the nine months ended September 30, 2021 and 2020, respectively, is presented below:


	2021			2020
	Number of Non-vested Restricted Shares	Weighted Average Per Share Grant Date Fair Value (1)		Number of Non-vested Restricted Shares	Weighted Average Per Share Grant Date Fair Value (1)
Non-vested shares as of January 1	1,603,766	$	6.27	837,123	$	6.18
Granted	939,446	3.82		1,054,254	6.33
Vested	(621,438)	5.41		(287,611)	6.22
Forfeited	(131,432)	4.92		—	—
Non-vested shares as of September 30	1,790,342	$	5.10	1,603,766	$	6.27
Restricted stock granted during the period	939,446	$	3.82	1,054,254	$	6.33

(1)The grant date fair value of restricted stock awards is based on the closing market price of the Company’s common stock at the grant date.

Schedule of PSU Award Activity

A summary of the activity of the target PSU awards under the 2017 Plan for the nine months ended September 30, 2021 and 2020, respectively, is presented below:


	2021			2020
	Number of Non-vested Target Shares	Weighted Average Per Share Grant Date Fair Value (1)		Number of Non-vested Target Shares	Weighted Average Per Share Grant Date Fair Value (1)
Non-vested target PSUs as of January 1	2,902,014	$	4.98	2,018,518	$	4.09
Granted	1,631,661	5.56		883,496	7.03
Vested	(842,792)	4.20		—	—
Forfeited	(314,143)	5.29		—	—
Non-vested target PSUs as of September 30	3,376,740	$	5.43	2,902,014	$	4.98

(1)The grant date fair value of the PSUs was determined through a Monte-Carlo simulation of the Company’s common stock total shareholder return and the common stock total shareholder return of its identified performance peer companies to determine the Relative TSR of the Company’s common stock over a future period of three years.

Schedule of RSU Award Activity

A summary of the activity of the RSU awards under the 2017 Plan for the nine months ended September 30, 2021 and 2020, respectively, is presented below:


	2021			2020
	Number of Non-vested Shares	Weighted Average Per Share Grant Date Fair Value (1)		Number of Non-vested Shares	Weighted Average Per Share Grant Date Fair Value (1)
Non-vested RSUs as of January 1	441,746	$	6.23	—	$	—
Granted	815,830	3.69		441,746	6.23
Vested	(147,254)	6.23		—	—
Forfeited	(94,070)	4.37		—	—
Non-vested RSUs as of September 30	1,016,252	$	4.36	441,746	$	6.23

(1)The grant date fair value of RSUs is based on the closing market price of the Company’s common stock at the grant date.