Share-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2017

A summary of our stock options as of September 30, 2017 and the changes during the nine months then ended is presented below:

Options	Shares (In thousands)			Weighted Average Exercise Price Per Share		Weighted Average Remaining Contractual Term		Aggregate Intrinsic Value (In thousands)
Outstanding at January 1, 2017		1,024		$	14.02
Granted		—			—
Exercised		(367	)		12.41
Forfeited		—			—
Expired		(45	)		45.36
Outstanding at September 30, 2017		612		$	12.68		4.4	$	17,223
Exercisable at September 30, 2017		588		$	12.50		4.3	$	16,627

Summary of Restricted Stock and Restricted Stock Units

The following table shows a summary of our restricted stock and restricted stock units as of September 30, 2017, as well as activity during the nine months then ended:

	Restricted Stock and Restricted Stock Units
	Shares (In thousands)			Weighted- Average Grant Date Fair Value
Nonvested at January 1, 2017		939		$	13.11
Granted		136			32.06
Vested		(310	)		13.19
Forfeited		(49	)		12.35
Nonvested at September 30, 2017		716		$	16.54

Summary of Market Stock Units

The following table shows a summary of our market stock units as of September 30, 2017, as well as activity during the nine months then ended:

	Market Stock Units
	Shares (In thousands)			Weighted- Average Grant Date Fair Value
Nonvested at January 1, 2017		406		$	8.75
Granted		—			—
Vested		(8	)		5.46
Forfeited		(25	)		5.95
Nonvested at September 30, 2017		373		$	9.01