Compensation Plans (Tables)

9 Months Ended

Sep. 30, 2013

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Roll-Forward of Outstanding Restricted Stock Grants Issued

The following table represents a roll-forward of outstanding restricted stock grants issued pursuant to the 2011 and 2005 Plans and related activity during the year ended December 31, 2012 and the nine months ended September 30, 2013:


	Shares			Weighted-Average Grant Date Price per Share
Outstanding restricted stock grants as of December 31, 2011		260,621		$	73.78
Grants issued		107,600			75.64
Grants vested		(46,056	)		75.22
Grants forfeited		(2,177	)		71.37

Outstanding restricted stock grants as of December 31, 2012		319,988		$	74.22

Grants issued		31,000			84.57
Grants vested		(18,649	)		84.36
Grants forfeited		—			—

Total outstanding restricted stock grants as of September 30, 2013		332,339		$	74.61

Expense Recognition of Deferred Compensation

Expense recognition of deferred compensation over the remaining vesting periods is as follows:

Three Months Remaining In
2013		2014		2015		2016		2017		2018		Total
$	1,241,235	$	4,869,157	$	3,968,016	$	2,133,488	$	1,300,810	$	238,073	$	13,750,779

Summary of Company's Expenses Attributable to 401(k) Plan

The following table summarizes the Company’s expenses attributable to the plan during the three and nine months ended September 30, 2013 and 2012:


	September 30,		September 30,
	2013		2012
Three Months Ended	$	301,958	$	272,438
Nine Months Ended		866,740		790,159