Stockholders' Equity and Share-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2015

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

Class of Treasury Stock

A summary of the Company's purchase of its common stock on a monthly basis during the three months ended December 31, 2015 is as follows:

	Total Number of Shares Purchased	Average Price per Share		Total Number of Cumulative Shares Purchased as Part of Publicly Announced Plans or Programs	Maximum Dollar Value That May Yet Be Purchased Under the Plans or Programs
2015	188,119	$	22.44	188,119	$	45,778
	188,119	$	22.44

Summary of Option Activity for Stock Options

The following table sets forth the summary of activity for restricted stock grants for the year ended December 31, 2015:

	2015				2014				2013
	Shares		Weighted Average Grant Date Fair Value		Shares		Weighted Average Grant Date Fair Value		Shares		Weighted Average Grant Date Fair Value
Nonvested at beginning of year	559,774		$	17.35	573,353		$	12.51	458,981		$	10.85
Granted	184,492		$	33.13	138,855		$	29.44	215,800		$	15.77
Vested	(355,472	)	$	14.61	(128,437	)	$	8.80	(97,928	)	$	11.78
Forfeited	—		$	—	(23,997	)	$	17.44	(3,500	)	$	15.66
Nonvested at end of year	388,794		$	27.34	559,774		$	17.35	573,353		$	12.51

The following table sets forth the summary of option activity for the year ended December 31, 2015:

	Shares		Weighted Average Exercise Price		Weighted Average Remaining Contractual Life	Aggregate Intrinsic Value
Outstanding at January 1, 2015	600,000		$	8.65	5.1	10,574
Granted	—		$	—	—	$	—
Exercised	(50,000	)	$	8.38	—	$	1,026
Expired	—		$	—	—	—
Forfeited	—		$	—	—	$	—
Outstanding at December 31, 2015	550,000		$	8.67	4.1	$	7,848
Exercisable on December 31, 2015	550,000		$	8.67	4.1	$	7,848
Expected to vest at December 31, 2015	—		$	—	—	$	—

Summary of Activity for Restricted Stock Grants

The following table sets forth the summary of option activity for Company’s stock options with market condition vesting for the year ended December 31, 2015:

	Shares		Weighted Average Exercise Price		Weighted Average Remaining Contractual Life	Aggregate Intrinsic Value
Outstanding at January 1, 2015	100,000		$	25.95	2.28	$	32
Granted	—		—		—	—
Exercised	(26,666	)	25.95		—	$	76
Forfeited	—		—		—	—
Outstanding at December 31, 2015	73,334		$	25.95	1.28	$	—
Exercisable on December 31, 2015	40,000		$	25.95	1.28	$	—
Expected to vest at December 31, 2015	—		$	—	—	$	—