Share-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2015

Share-Based Compensation

Schedule of stock option activity

		Weighted		Weighted
		Average		Average	Aggregate
	Number of	Exercise		Remaining	Intrinsic
	Shares	Price		Contractual Life (Yrs.)	Value(000's)
Outstanding at  January 1,  2015	294,342	$	35.91
Granted	26,430		61.74
Exercised	(30,560)		31.31
Outstanding at September 30, 2015	290,212		38.74	4.58	$	11,064
Exercisable at September 30, 2015	231,931		34.45	3.63	$	9,840
Weighted-average fair value of options granted during the year	$ 25.08

Schedule of weighted-average assumptions used in valuing options

	Nine months ended September 30,
	2015		2014
Dividend yield	1.40	%	1.27	%
Expected life	8.5	years	6.3	years
Expected volatility	40.9	%	43.8	%	-	44.7	%
Risk-free interest rate	1.79	%	2.10	%

Summary of nonvested restricted stock

Nonvested restricted stock for the nine months ended September 30,2015 is summarized in the following table.  All information has been retroactively adjusted for stock dividends and stock splits.

		Weighted-
		Average
		Grant-Date
Restricted Stock	Shares	Fair Value
Nonvested at January 1 2015	228,907	$	37.44
Granted	42,605		70.56
Vested	(44,444)		36.49
Forfeited	(1,500)		49.46
Nonvested at September 30, 2015	225,568		43.80

Summary of nonvested RSUs

Nonvested RSUs for the nine months endedSeptember 30,  2015 is summarized in the following table.

		Weighted-
		Average
		Grant-Date
Restricted Stock Units	Shares	Fair Value
Nonvested at January 1, 2015	79,308	$	55.92
Granted	38,456		68.10
Vested	(2,315)		54.00
Nonvested at September 30, 2015	115,449		60.02