Share-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2020

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Schedule of Restricted Stock Awards ("RSAs")

Restricted Stock Awards (“RSAs”) generally vest in annual installments between one and three years from each grant date. The following table provides a summary of RSAs for the nine months ended September 30, 2020:

	Number of Shares			Weighted-Average Grant Date Fair Value
Unvested at January 1, 2020		557,245		$	29.10
Granted		665,141			18.19
Vested		(325,885	)		25.87
Forfeited		(60,286	)		29.05
Unvested at September 30, 2020		836,215		$	21.69

Schedule of Performance Stock Units ("PSUs")

The following table provides a summary of PSUs for the nine months ended September 30, 2020:

	Number of Shares			Weighted-Average Grant Date Fair Value
Unvested at January 1, 2020		574,797		$	32.82
Granted		605,535			24.93
Vested		(456,121	)		32.39
Forfeited		(52,114	)		33.14
Unvested at September 30, 2020		672,097		$	25.98

Schedule of Grant Date Fair Values of Awards Using Monte Carlo Simulation Valuation Model

The grant date fair values of the awards that are subject to the achievement of market conditions based on total shareholder return were determined using a Monte Carlo simulation valuation model with the following assumptions:

Expected volatility(1)	22.0% - 23.0%
Dividend yield(2)		—
Risk-free rate	1.2% - 1.5%
Expected term	1 - 3 years

⁽¹⁾ The weighted average expected volatility was 22.5%.

⁽²⁾ Dividends are assumed to be reinvested in shares of our common stock and dividends will not be paid unless shares vest.