Stock-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2014

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

Summary of Stock Option Activity

A summary of stock option activity as of December 31, 2014 and changes during the year then ended is presented below:

	2014
	Number of Shares		Weighted Average Exercise Price		Weighted Average Remaining Contractual Term	Aggregate Intrinsic Value
	(in whole shares)					(in millions)
Outstanding — beginning of year	146,000		$	16.71
Granted	—		—
Exercised	(2,500	)	14.12
Canceled or expired	—		—
Outstanding — end of year	143,500		$	16.76	1.7	$	6.6
Options exercisable	143,500		$	16.76	1.7	$	6.6

Summary of Restricted Share Activity

A summary of restricted share and performance share activity for the year ended December 31, 2014 is as follows:

	2014
	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	422,898		$	21.04	42,000		$	20.30
Granted	137,750		57.04		—		—
Vested	(211,048	)	23.71		(14,000	)	20.30
Canceled or expired	(4,668	)	38.19		—		—
Outstanding — end of year	344,932		$	33.55	28,000		$	20.30