Condensed Consolidated Statements Of Cash Flows (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Oct. 29, 2011	Oct. 30, 2010
Operating activities:
Net income	$ 97,564	$ 107,282
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	12,121	12,853
Amortization	7,418	8,200
ESOP compensation	367	1,050
Stock-based compensation	6,301	5,289
Finance contracts receivable, sold		(122,348)
Excess tax benefits from stock-based compensation	(544)	(1,031)
Bad debt expense	1,760	2,099
Change in assets and liabilities, net of acquired	(5,903)	(27,837)
Net cash provided by (used in) operating activities	119,084	(14,443)
Investing activities:
Additions to property and equipment, net	(22,379)	(20,046)
Acquisitions and equity investments, net	(8,726)	(46,682)
Net cash used in investing activities	(31,105)	(66,728)
Financing activities:
Dividends paid	(27,213)	(23,734)
Repurchases of common stock	(218,858)	(36,947)
Draw on revolver	20,000	0
Advances on finance contracts	0	122,348
ESOP activity	(871)	1,246
Common stock issued, net	6,667	7,735
Excess tax benefits from share-based compensation	544	1,031
Net cash (used in) provided by financing activities	(219,731)	71,679
Effect of exchange rate changes on cash	(6,845)	(2,355)
Net decrease in cash and cash equivalents	(138,597)	(11,847)
Cash and cash equivalents at beginning of period	388,665	340,591
Cash and cash equivalents at end of period	$ 250,068	$ 328,744