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Net Income per Common Share (Tables)

9 Months Ended

Oct. 31, 2012

Net Income per Common Share [Abstract]

Reconciliation between basic and diluted net income per share

A reconciliation between basic and diluted net income per share is as follows:

		Three Months Ended October 31,								Nine Months Ended October 31,
		2012				2011				2012				2011
		(In thousands, except per share amounts)
Net income		$	48,291			$	43,555			$	48,805			$	44,600
Basic net income per share:
Basic common shares			20,053				19,845				19,971				19,804
Basic net income per share		$	2.41			$	2.19			$	2.44			$	2.25
Diluted net income per share:
Basic common shares			20,053				19,845				19,971				19,804
Stock options and restricted stock awards			348				327				338				405
Diluted common shares			20,401				20,172				20,309				20,209
Diluted net income per share		$	2.37			$	2.16			$	2.40			$	2.21

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- Definition

Tabular disclosure of an entity's basic and diluted earnings per share calculations.

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