Share-Based Compensation (Tables)

3 Months Ended

Mar. 31, 2018

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Schedule of Restricted Stock Units Activity

The following table summarizes restricted stock unit grants under the 2017 Plan during the three months ended March 31, 2018 and under the 2010 Plan for the three months ended March 31, 2017:

March 31,	Grantee Type	# of Restricted Stock Units Granted	Vesting Period	Grant Date Fair Value (in thousands)
2018	Trustee group	373,438	1-3 years	$	5,975
2018	Employee group	897,125	2-4 years	$	12,677
2017	Trustee group	18,348	2-3 years	$	199
2017	Employee group	71,428	5 years	$	959

Schedule of Stock Option Activity

The following tables provide a summary of option activity for the three months ended March 31, 2018 and 2017:

Options	Shares (In thousands)		Weighted-Average Exercise Price		Weighted-Average Remaining Contractual Terms (Years)
Outstanding as of December 31, 2017	5,478		$	9.72	6.0
Granted	—		—
Exercised	(95	)	7.85
Forfeited or expired	(70	)	9.81
Outstanding as of March 31, 2018	5,313		9.76		5.8
Exercisable as of March 31, 2018	3,666		$	9.73	4.9

Outstanding as of December 31, 2016	6,313		$	9.72	6.8
Granted	—		—
Exercised	—		—
Forfeited or expired	(286	)	9.81
Outstanding as of March 31, 2017	6,027		9.71		6.3
Exercisable as of March 31, 2017	3,537		$	9.64	4.7