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Earnings Per Share (Tables)

9 Months Ended

Sep. 30, 2013

Earnings Per Share [Abstract]

Earnings Per Share

	Three months ended September 30						Nine months ended September 30
	2013			2012			2013			2012
Net income	$	83,379		$	72,300		$	247,816		$	216,647
Shares:
Weighted average number of common shares outstanding		30,897			31,643			30,937			31,583
Dilutive stock awards		399			203			297			298
Diluted weighted average number of common		31,296			31,846			31,234			31,881
shares outstanding
Basic earnings per share	$	2.70		$	2.28		$	8.01		$	6.86
Diluted earnings per share	$	2.66		$	2.27		$	7.93		$	6.80

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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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