Share-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2017

A summary of our stock options as of June 30, 2017 and the changes during the six 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		(222	)		12.69
Forfeited		—			—
Expired		(45	)		45.36
Outstanding at June 30, 2017		757		$	12.54		4.4	$	20,661
Exercisable at June 30, 2017		732		$	12.40		4.3	$	20,083

Summary of Restricted Stock and Restricted Stock Units

The following table shows a summary of our restricted stock and restricted stock units as of June 30, 2017, as well as activity during the six 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		113			30.56
Vested		(230	)		11.99
Forfeited		(44	)		11.64
Nonvested at June 30, 2017		778		$	16.07

Summary of Market Stock Units

The following table shows a summary of our market stock units as of June 30, 2017, as well as activity during the six 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 June 30, 2017		373		$	9.01