Stock-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2020

Share-based Payment Arrangement [Abstract]

Schedule of awards

The following table summarizes restricted stock units subject to only service conditions granted under our 2010 Equity Incentive Plan:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2020		2019		2020		2019
	(In thousands, except per share data)
Restricted stock units granted	96		52		1,580		140
Weighted-average grant-date fair value	$	51.96	$	35.41	$	30.45	$	48.39

The following table summarizes the performance-based restricted stock units granted under our 2010 Equity Incentive Plan:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2020		2019		2020		2019
	(In thousands, except per share data)
Performance-based restricted stock units granted (1)	53		—		615		883
Weighted-average grant-date fair value	$	51.25	$	—	$	34.82	$	50.15

(1) Performance awards granted also reflects, as applicable, the issuance of any shares awarded in excess of their original target amount based on the Compensation Committee's certification of completed performance years. The grant date fair value for these awards are based on the grant price at the time of the original award.

The following table summarizes the performance-based stock options granted to date:

	Nine Months Ended September 30,
	2020
	(In thousands, except per share data)
Performance-based stock options granted	2,250
Weighted-average exercise price	$	31.30
Weighted-average grant-date fair value	$	14.57

Schedule of weighted-average assumptions used to estimate stock option fair value

The estimated grant-date fair value of each performance option grant was based on the following weighted-average assumptions:

	Nine Months Ended September 30,
	2020
Risk-free interest rate	0.63	%
Expected term (in years)	3.30
Expected dividends	—
Expected volatility	53.8	%