Stock-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2017

Postemployment Benefits [Abstract]

Summary of Stock Option Activity under 2006 EIP and 2013 LTIP

The following table presents the stock or stock option activity under the 2006 EIP and 2013 LTIP for the six months ended June 30, 2017:

	Stock or			Options Outstanding
	Options						Weighted
	Available			Number			Average
	for Grant			of Shares			Exercise Price
Balance at January 1, 2017		5,333,520			2,169,305		$	27.45
Options exercised		—			(20,549	)		24.79
Options canceled or forfeited (2013 LTIP)		16,088			(16,088	)		23.40
Options canceled or forfeited (2006 EIP)		—			(159,214	)		30.84
Restricted stock granted		(679,594	)		—			—
Restricted stock canceled		66,265			—			—
Balance at June 30, 2017		4,736,279			1,973,454		$	27.24

Summary of Information Regarding Options Granted under Executive Incentive Plan

The following table presents information regarding the options granted under the 2006 EIP and 2013 LTIP at June 30, 2017:

Outstanding							Exercisable
Range of Exercise Prices	Number of Options		Weighted Average Remaining Contractual Life (years)		Weighted Average Exercise Price		Number of Options		Weighted Average Exercise Price
$0.00 - $23.50		153,066		5.94	$	22.12		114,252	$	22.12
23.51 - 28.80		1,397,574		4.81		25.41		1,355,122		25.44
28.81 - 33.52		403,566		4.48		33.43		403,566		33.43
33.53 - 84.80		19,248		2.28		71.00		19,248		71.00
$0.00 - $84.80		1,973,454		4.81	$	27.24		1,892,188	$	27.40