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Compensation Plans (Tables)

3 Months Ended

Mar. 31, 2015

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

Roll-Forward of Outstanding Restricted Stock Grants Issued

The following table represents a roll-forward of outstanding Restricted Stock and related activity during the three months ended March 31, 2015:

	Shares			Weighted-Average Grant Date Price per Share
Outstanding Restricted Stock as of December 31, 2014	335,768			$	79.79
Grants issued	49,000			156.85
Grants vested	(58,905	)		69.77
Grants forfeited	—			—
Total Outstanding Restricted Stock as of March 31, 2015	325,863			$	97.91

Expense Recognition of Deferred Compensation

Compensation expense recognition of deferred compensation over the remaining vesting periods, adjusted for estimated forfeitures, is as follows:

Nine Months   Remaining In
2015				2016				2017				2018				2019				Thereafter				Total
$	5,056,315			$	4,076,780			$	3,548,508			$	2,845,415			$	1,940,697			$	918,563			$	18,386,278

Schedule of Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Grant Date Intrinsic Value [Table Text Block]

The following table represents stock grant transactions during the three months ended March 31, 2015 and 2014:

	Shares Issued			Grant Date Value
March 31, 2015	27,192			$	3,826,458
March 31, 2014	33,745			3,984,817

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Schedule of expense recognition of deferred compensation arrangement.

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- Definition

Tabular disclosure of the total intrinsic value of options exercised (or share units converted), share-based liabilities paid, and the total fair value of shares vested 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)(2)

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

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

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