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Compensation Plans (Tables)

12 Months Ended

Dec. 31, 2020

Share-based Payment Arrangement [Abstract]

Schedule of non-vested PSUs

A summary of the status and activity of non-vested PSUs is presented in the following table:

			For the Years Ended December 31,
			2020												2019												2018
			PSUs (1)						Weighted-Average Grant-Date Fair Value						PSUs (1)						Weighted-Average Grant-Date Fair Value						PSUs (1)						Weighted-Average Grant-Date Fair Value
Non-vested at beginning of year			2,022,585						$	16.87					1,711,259						$	20.68					1,533,491						$	22.97
Granted			—						$	—					793,125						$	12.80					572,924						$	24.45
Vested			(792,572)						$	15.85					(346,021)						$	26.32					(233,102)						$	44.25
Forfeited			(399,549)						$	17.56					(135,778)						$	16.98					(162,054)						$	21.79
Non-vested at end of year			830,464						$	17.52					2,022,585						$	16.87					1,711,259						$	20.68

____________________________________________

(1)The number of shares of common stock assumes a multiplier of one. The actual final number of shares of common stock to be issued will range from zero to two times the number of PSUs awarded depending on the three-year performance multiplier.

Schedule of non-vested RSUs

A summary of the status and activity of non-vested RSUs granted to employees is presented in the following table:

			For the Years Ended December 31,
			2020												2019												2018
			RSUs						Weighted- Average Grant-Date Fair Value						RSUs						Weighted- Average Grant-Date Fair Value						RSUs						Weighted- Average Grant-Date Fair Value
Non-vested at beginning of year			1,532,131						$	16.01					1,243,163						$	21.50					1,244,262						$	20.25
Granted			1,458,869						$	5.98					978,932						$	12.36					583,552						$	25.77
Vested			(746,132)						$	16.74					(466,535)						$	21.94					(407,529)						$	24.30
Forfeited			(147,008)						$	15.34					(223,429)						$	18.16					(177,122)						$	17.26
Non-vested at end of year			2,097,860						$	8.83					1,532,131						$	16.01					1,243,163						$	21.50

Schedule of shares settled, restricted stock units

A summary of the shares of common stock issued to settle employee RSUs is presented in the table below:

			For the Years Ended December 31,
			2020						2019						2018
Shares of common stock issued to settle RSUs (1)			746,132						466,535						407,529
Less: shares of common stock withheld for income and payroll taxes			(209,173)						(132,136)						(115,784)
Net shares of common stock issued			536,959						334,399						291,745

____________________________________________

(1)    During the years ended December 31, 2020, 2019, and 2018, the Company issued shares of common stock to settle RSUs that related to awards granted in previous years. The Company and a majority of grant recipients mutually agreed to net share settle a portion of the awards to cover income and payroll tax withholdings in accordance with the Company’s Equity Plan and individual award agreements.

Schedule of employee stock purchase plan

The fair value of ESPP shares issued during the periods reported were estimated using the following weighted-average assumptions:

			For the Years Ended December 31,
			2020						2019						2018
Risk free interest rate			0.8		%				2.3		%				1.8		%
Dividend yield			0.7		%				0.7		%				0.4		%
Volatility factor of the expected market price of the Company’s common stock			166.2		%				56.6		%				55.9		%
Expected life (in years)			0.5						0.5						0.5

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Tabular disclosure of the changes in outstanding nonvested performance-based units.

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Tabular disclosure of the changes in outstanding nonvested restricted stock units.

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