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Earnings Per Share (Tables)

12 Months Ended

Dec. 31, 2013

Earnings Per Share [Abstract]

Earnings Per Share

	Year ended December 31
	2013			2012			2011
Net income	$	327,438		$	278,000		$	214,945
Shares:
Weighted average number of common shares outstanding		30,957			31,513			31,217
Dilutive stock awards		324			270			558
Diluted weighted average number of common shares outstanding		31,281			31,783			31,775
Basic earnings per share	$	10.58		$	8.82		$	6.89
Diluted earnings per share	$	10.47		$	8.75		$	6.76

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- Definition

Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 260

-SubTopic 10

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

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