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Stock Options and Restricted Stock (Tables)

12 Months Ended

Dec. 31, 2014

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

Stock Options Outstanding

The following table summarizes information about the stock options outstanding under the 2005 Incentive Plan at December 31, 2012, 2013 and 2014:

		Shares				Weighted- Average Exercise             Price				Weighted- Average Remaining Contractual Life             (in years)
Outstanding at January 1, 2012			919,348				10.37				5.5
Granted			—				—				—
Exercised			(86,800	)			9.00				—
Canceled, forfeited, or expired			—				—				—
Outstanding at December 31, 2012			832,548				10.51				4.6
Exercisable at December 31, 2012			779,948				10.08				4.4
Outstanding at January 1, 2013			832,548				10.51				4.6
Granted			—				—				—
Exercised			(256,300	)			9.00				—
Canceled, forfeited, or expired			—				—				—
Outstanding at December 31, 2013			576,248				11.12				3.8
Exercisable at December 31, 2013			557,448				10.91				3.7
Outstanding at January 1, 2014			576,248				11.12				3.8
Granted			—				—				—
Exercised			(294,165	)			9.09				—
Canceled, forfeited, or expired			—				—				—
Outstanding at December 31, 2014			282,083				11.30				3.6
Exercisable at December 31, 2014			282,083				11.30				3.6

Weighted Average Grant Date Fair Values of Options Granted

		2014				2013				2012
						(in thousands)
Cash received from option exercises		$	2,674			$	2,344			$	781
Total tax benefits realized for tax deductions from options exercised			2,797				2,002				405
Total intrinsic value of options exercised			9,145				6,654				1,468
Grant date fair value of options vested			144				226				310
Aggregate intrinsic value of vested options outstanding			8,763				17,467				13,393

Restricted Stock Outstanding

The following table summarizes information about the restricted stock outstanding under the 2005 Incentive Plan at December 31, 2014:

		Shares				Weighted-Average Grant-Date Fair         Value per Share
Nonvested balance at January 1, 2012			—				—
Granted			8,000				27.47
Vested			—				—
Forfeited			—				—
Nonvested balance at December 31, 2012			8,000				27.47
Granted			—				—
Vested			(1,600	)			27.47
Forfeited			—				—
Nonvested balance at December 31, 2013			6,400				27.47
Granted			—				—
Vested			(800	)			27.35
Forfeited			(3,200	)			27.59
Nonvested balance at December 31, 2014			2,400				27.35

		Shares				Weighted-Average Grant-Date Fair         Value per Share
Nonvested balance at January 1, 2012			9,513				22.06
Granted			7,833				26.79
Vested			(9,513	)			22.06
Forfeited			—				—
Nonvested balance at December 31, 2012			7,833				26.79
Granted			5,376				33.47
Vested			(7,833	)			26.79
Forfeited			—				—
Nonvested balance at December 31, 2013			5,376				33.47
Granted			5,229				37,27
Vested			(5,376	)			33.47
Forfeited			—				—
Nonvested balance at December 31, 2014			5,229				37.27

		Shares				Weighted-Average Grant-Date Fair Value per Share
Nonvested balance at January 1, 2012			—				—
Granted			2,331				26.79
Vested			—				—
Forfeited			—				—
Nonvested balance at December 31, 2012			2,331				26.79
Granted			80,278				34.14
Vested			—				—
Forfeited			—				—
Nonvested balance at December 31, 2013			82,609				33.93
Granted			4,312				43.83
Vested			(14,000	)			33.58
Forfeited			—				—
Nonvested balance at December 31, 2014			72,921				34.59

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- Definition

Tabular disclosure of the number and weighted-average grant date fair value for restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units that were granted, vested, or forfeited during the year.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(1)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(1)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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Tabular disclosure of the weighted-average grant-date fair value of equity options or other equity instruments granted during the year.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (d)(1)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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