Earnings Per Share (Tables)

12 Months Ended

Feb. 28, 2013

Earnings Per Share [Abstract]

Computation of basic and diluted earnings per share

The following table sets forth the computation of basic and diluted earnings per share:

	2013		2012		2011
	(In thousands, except share and per share amounts)
Numerator:
Net income for basic and diluted earnings per common share	$	60,456,206	$	40,735,796	$	34,962,641
Denominator:
Denominator for basic earnings per common share–weighted average shares	25,320,147		25,131,754		24,922,700
Effect of dilutive securities:
Employee and Director stock awards	240,447		230,366		278,608
Denominator for diluted earnings per common share	25,560,594		25,362,120		25,201,308
Earnings per share basic and diluted:
Basic earnings per common share	$	2.39	$	1.62	$	1.40
Diluted earnings per common share	$	2.37	$	1.61	$	1.39