Stock Incentive Plans (Tables)

12 Months Ended

Dec. 31, 2014

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

Summary of Information Concerning Restricted Stock Awards

The following table summarizes certain information concerning restricted stock awards:


	2014			Weighted Average Grant Price per Share		2013			Weighted Average Grant Price per Share		2012			Weighted Average Grant Price per Share
Unvested shares outstanding at beginning of year		1,729,033		$	10.23		1,913,073		$	9.17		1,846,115		$	8.44
Granted		387,165			13.50		361,664			11.10		321,295			12.09
Net adjustment due to performance		(36,600	)		12.01		165,545			9.60		28,181			8.31
Vested		(707,074	)		8.81		(734,129	)		7.90		(179,767	)		8.24
Forfeited		(65,399	)		11.72		(37,828	)		10.42		(179,132	)		8.50
Dividend reinvestment		46,968			12.66		60,708			11.82		76,381			11.19

Unvested shares outstanding at end of year		1,354,093			11.86		1,729,033			10.23		1,913,073			9.17

Components of Restricted Stock Awards

The components of the restricted stock awards as of December 31, 2014 are as follows:


	Service- Based Awards		Performance- Based Awards		Total
Unvested shares		513,886		840,207		1,354,093
Unrecognized compensation expense	$	3,075	$	2,167	$	5,242
Intrinsic value	$	6,845	$	11,192	$	18,037
Weighted average remaining life (in years)		2.14		1.95		2.02

Summary of Information Concerning Stock Option Awards

The following table summarizes certain information concerning stock options:


	2014			Weighted Average Price per Share		2013			Weighted Average Price per Share		2012			Weighted Average Price per Share
Options outstanding at beginning of year		533,524		$	11.50		640,050		$	13.21		586,020		$	14.93
Assumed from acquisitions		805,507			7.39		274,964			11.16		627,808			10.41
Exercised		(690,973	)		7.75		(69,429	)		7.46		(182,188	)		8.87
Forfeited		(79,224	)		21.40		(312,061	)		15.58		(391,590	)		13.32

Options outstanding and exercisable at end of year		568,834			8.86		533,524			11.50		640,050			13.21

Summary of Stock Options Outstanding

The following table summarizes information about stock options outstanding at December 31, 2014:


Range of Exercise Prices	Options Outstanding and Exercisable		Weighted Average Remaining Contractual Years		Weighted Average Exercise Price
$3.45 - $5.18		218,170		5.74	$	4.79
$5.19 - $7.78		105,497		5.63		6.11
$7.79 - $11.68		—		—		—
$11.69 - $17.54		233,780		2.59		12.77
$17.55 - $26.32		—		—		—
$26.33 - $36.42		11,387		1.34		31.92

		568,834

Summary of Stock Options Exercised

The following table summarizes certain information relating to stock options exercised:


Year Ended December 31	2014		2013		2012
Proceeds from stock options exercised	$	3,292	$	365	$	864
Tax benefit recognized from stock options exercised		808		79		96
Intrinsic value of stock options exercised		3,289		318		435

- Definition

Tabular disclosure of components of a stock option or other award plan under which equity-based compensation is awarded to employees, typically comprised of the amount of unearned compensation (deferred compensation cost), compensation expense, and changes in the quantity and fair value of the shares (or other type of equity) granted, exercised, forfeited, and issued and outstanding pertaining to that plan. Disclosure may also include nature and general terms of such arrangements that existed during the period and potential effects of those arrangements on shareholders, effect of compensation cost arising from equity-based payment arrangements on the income statement, method of estimating the fair value of the goods or services received, or the fair value of the equity instruments granted, during the period, cash flow effects resulting from equity-based payment arrangements and, for registrants that accelerate vesting of out of the money share options, reasons for the decision to accelerate.

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