Acquisitions (Tables)

9 Months Ended

Jan. 31, 2012

Acquisitions [Abstract]

Allocation Of Purchase Price

Assets acquired:
Inventories	$	2,868
Property and equipment		18,765
Total assets		21,633
Liabilities assumed:
Accrued expenses		271
Total liabilities		271
Net tangible assets acquired, net of cash		21,362
Goodwill and other intangible assets		16,364
Total consideration paid, net of cash acquired	$	37,726

Pro Forma Information Of Consolidated Results Of Operations

		Nine months ended January 31,
		2012	2011
Total revenues	$	5,262,880	4,193,013
Net earnings		94,506	74,022
Earnings per common share:
Basic	$	2.48	1.69
Diluted	$	2.46	1.68