Share-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2016

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

Summary of Stock Option Activity

A summary of stock option activity as of December 31, 2016 and changes during the year then ended is presented below:

	2016
	Number of Shares		Weighted Average Exercise Price		Weighted Average Remaining Contractual Term	Aggregate Intrinsic Value
	(in whole shares)					(in millions)
Outstanding — beginning of year	60,000		$	19.41
Granted	—		—
Exercised	(22,000	)	19.60
Canceled or expired	—		—
Outstanding — end of year	38,000		$	19.30	1.1	$	0.9
Options exercisable	38,000		$	19.30	1.1	$	0.9

Summary of Restricted Share Activity

A summary of restricted share and performance share activity for the year ended December 31, 2016 is as follows:

	2016
	Time-Based				Performance-Based
	Number of Shares		Weighted Average Grant Date Fair Value		Number of Shares		Weighted Average Grant Date Fair Value
	(in whole shares)				(in whole shares)
Outstanding — beginning of year	208,429		$	36.61	120,000		$	48.72
Granted(a)	58,570		30.72		165,000		34.78
Vested	(126,083	)	41.00		(40,000	)	48.72
Performance- to time-based(b)	80,000		48.72		(80,000	)	48.72
Canceled or expired	(4,000	)	36.34		—		—
Outstanding — end of year	216,916		$	36.94	165,000		$	34.78

(a) Included in the granted amount are 6,020 restricted share units.

(b) During the second quarter of 2016, 40,000 of the performance-based restricted shares granted in 2015 fully vested based on achievement of the performance criteria. In accordance with the grant agreements, the remaining 80,000 shares became time-based, vesting over the remaining two years of the requisite service period.