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Receivables (Schedule Of Activity In The Allowance For Doubtful Accounts) (Details) (USD $) In Thousands, unless otherwise specified | 9 Months Ended
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Jan. 31, 2013 | Jan. 31, 2012
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Beginning balance | $ 44,589 | $ 47,943
Provision | 40,482 | 50,632
Charge-offs | (40,242) | (34,436)
Ending balance | 44,829 | 64,139
Emerald Advance Lines Of Credit [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Beginning balance | 6,200 | 4,400
Provision | 25,519 | 33,570
Ending balance | 31,719 | 37,970
Loans To Franchisees [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Provision | 42 |
Ending balance | 42 |
Credit Cards [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Provision | 4,255 |
Ending balance | 4,255 |
All Other [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Beginning balance | 38,389 | 43,543
Provision | 10,666 | 17,062
Charge-offs | (40,242) | (34,436)
Ending balance | $ 8,813 | $ 26,169

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- Definition Amount of direct write-downs of receivables charged against the allowance for doubtful accounts. + References No definition available. + Details
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- Definition A valuation allowance for trade and other receivables due to an Entity within one year (or the normal operating cycle, whichever is longer) that are expected to be uncollectible. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=7512638&loc=d3e5074-111524 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 4 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.4) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Amount of the current period expense charged against operations, the offset which is generally to the allowance for doubtful accounts for the purpose of reducing receivables, including notes receivable, to an amount that approximates their net realizable value (the amount expected to be collected). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 5 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3602-108585 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.5) -URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688 + Details
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