Stock-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2021

Stock-Based Compensation

Summary of the restricted stock awards activity

	Year ended December 31,
	2021			2020			2019
			Weighted Average			Weighted Average			Weighted Average
	Shares		Grant Price	Shares		Grant Price	Shares		Grant Price
Outstanding, beginning of period	4,990,971	$	5.71	3,140,168	$	8.56	2,356,418	$	9.23
Granted	1,422,358		17.17	3,585,929		4.44	2,075,455		8.41
Vested	(1,704,596)		6.23	(1,154,151)		8.87	(825,764)		9.84
Forfeited	(383,609)		7.71	(580,975)		7.05	(465,941)		9.01
Outstanding, end of period(1)	4,325,124	$	9.10	4,990,971	$	5.71	3,140,168	$	8.56

(1) The total outstanding non-vested shares of restricted stock awards granted to employees and directors are included in total outstanding shares as of December 31, 2021, 2020 and 2019.