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Stock-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2021

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Summary of RSU Activity

		Number of RSUs and Restricted Stock				Weighted-Average Grant Date Fair Value
Outstanding as of December 31, 2020			4,061			$	8.31
Granted			1,554				15.02
Vested and delivered			(1,493	)			8.36
Forfeited			(201	)			9.13
Outstanding as of June 30, 2021 (1)			3,921				10.91

(1)Included in “Outstanding as of June 30, 2021” are 64 RSUs that were vested, but not yet delivered.

Summary of PSU Activity

PSU activity for the six months ended June 30, 2021 is as follows (in thousands, except for weighted-average grant date fair value):

		Number of PSUs				Weighted-Average Grant Date Fair Value
Outstanding as of December 31, 2020			730			$	9.28
Granted			—				—
Vested and delivered			(588	)			5.74
Forfeited			—				—
Outstanding as of June 30, 2021			142				23.98

Summary of Stock Option Activity

Stock option activity for the six months ended June 30, 2021 is as follows (in thousands, except for weighted-average grant date fair value and weighted-average remaining contractual term):

		Number of Options				Weighted-Average Grant Date Fair Value				Weighted-Average Remaining Contractual Term (in years)				Aggregate Intrinsic Value
Outstanding as of December 31, 2020			513			$	2.80				9.22			$	3,028
Granted			291				9.63				—				—
Exercised			—				—				—				—
Forfeited			—				—				—				—
Outstanding as of June 30, 2021			804				5.27				9.08				4,583
Exercisable as of June 30, 2021			—				—				—				—

Summary of Fair Value of Stock Options Granted are Estimated Using Black Scholes Option Pricing Model

The fair value of the stock options granted during the six months ended June 30, 2021 and 2020 are estimated on the grant date using the Black-Scholes option pricing model, using the following assumptions:

	2021				2020
Risk-free interest rate		1.15	%			1.01	%
Weighted-average volatility		69.00	%			53.08	%
Dividend yield		0	%			0	%
Expected years until exercise		6.5				6.5

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Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
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Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions.

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Disclosure of the number and weighted-average grant date fair value for restricted stock and restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock and restricted stock units that were granted, vested, or forfeited during the year.

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Tabular disclosure of the number and weighted-average grant date fair value for outstanding performance shares.

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