Stock Based Compensation (Tables)

6 Months Ended

Jun. 30, 2013

Summary of Restricted Stock Activity and Related Information

A summary of restricted stock activity and related information for the six months ended June 30, 2013 is presented below:

	Shares			Weighted- Average Grant-Date Fair Value
Nonvested at January 1, 2013		115,722		$	99.50
Granted		86,143		$	80.59
Vested		(47,607	)	$	98.20
Forfeited		(12,019	)	$	94.17
Nonvested at June 30, 2013		142,239		$	88.93