Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Jan. 31, 2017	Jan. 31, 2016
Statement of Cash Flows [Abstract]
Net Income (Loss) Attributable to Parent	$ (374,407)	$ (326,395)
Depreciation, Depletion and Amortization	132,192	127,746
Provision For Bad Debts And Loan Losses	29,634	38,921
Deferred Income Tax Expense (Benefit) Including Discontinued Operations	6,128	52,032
Share-based Compensation	16,945	21,106
Increase (Decrease) in Restricted Cash for Operating Activities	33,942	22,264
Increase (Decrease) in Accounts Receivable	(646,290)	(685,961)
Increase (Decrease) in Prepaid Expense and Other Assets	(23,208)	(30,281)
Increase (Decrease) in Other Noncurrent Assets	7,575	13,008
Increase (Decrease) in Accounts Payable and Accrued Liabilities	(33,560)	(32,238)
Increase (Decrease) in Accrued Salaries	(37,978)	(20,544)
Increase (Decrease) in Income Taxes Payable	(378,987)	(461,288)
Increase (Decrease) in Other Current Liabilities	(44,243)	(72,363)
Increase (Decrease) in Other Operating Liabilities	(57,216)	(51,734)
Other Operating Activities, Cash Flow Statement	(6,444)	(21,222)
Net cash used in operating activities	(1,375,917)	(1,426,949)
CASH FLOWS FROM INVESTING ACTIVITIES:
Maturities of and payments received on available-for-sale securities	144	436,380
Principal payments on mortgage loans held for investment, net	207,174	28,004
Purchases of property and equipment	(73,924)	(66,418)
Payments made for business acquisitions, net of cash acquired	(52,825)	(85,329)
Franchise loans funded	(31,788)	(21,377)
Payments received on franchise loans	20,816	22,234
Other, net	(4,855)	547
Net cash provided by (used in) investing activities	64,742	314,041
CASH FLOWS FROM FINANCING ACTIVITIES:
Repayments of Long-term Lines of Credit	(445,000)	(225,000)
Proceeds from Long-term Lines of Credit	1,545,000	1,350,000
Proceeds from Issuance of Long-term Debt	0	996,831
Customer banking deposits, net	0	(326,705)
Transfer of bank deposits	0	(419,028)
Dividends paid	(141,537)	(157,530)
Repurchase of common stock, including shares surrendered	(322,782)	(1,888,595)
Proceeds from exercise of stock options	2,403	25,803
Other, net	373	(43,972)
Net cash used in financing activities	638,457	(688,196)
Effects of exchange rates on cash	(2,911)	(16,575)
Net decrease in cash and cash equivalents	(675,629)	(1,817,679)
Cash and cash equivalents at beginning of the period	896,801	2,007,190
Cash and cash equivalents at end of the period	221,172	189,511
SUPPLEMENTARY CASH FLOW DATA:
Income taxes paid, net of refunds received	158,656	157,691
Interest paid on borrowings	59,809	32,772
Accrued additions to property and equipment	5,959	4,385
Accrued Purchase Of Common Stock	$ 0	$ 21,167