Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Apr. 30, 2020	Apr. 30, 2019	Apr. 30, 2018
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income (loss)	$ (7,526)	$ 422,509	$ 613,149
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	169,536	166,695	183,295
Provision for bad debt	76,621	70,569	74,489
Deferred taxes	(8,300)	1,129	112,140
Stock-based compensation	28,045	23,767	21,954
Impairment of goodwill	106,000	0	0
Changes in assets and liabilities, net of acquisitions:
Receivables	(66,896)	(73,648)	(63,935)
Prepaid expenses, other current and noncurrent assets	39,377	(4,503)	(6,453)
Accounts payable, accrued expenses, salaries, wages and payroll taxes	(124,019)	54,827	(10,532)
Deferred revenue, other current and noncurrent liabilities	(9,096)	(13,758)	9,127
Income tax receivables, accrued income taxes and income tax reserves	(87,423)	(36,824)	(75,491)
Other, net	(7,358)	(4,225)	(7,740)
Net cash provided by operating activities	108,961	606,538	850,003
CASH FLOWS FROM INVESTING ACTIVITIES:
Capital expenditures	(81,685)	(95,490)	(98,583)
Payments made for business acquisitions, net of cash acquired	(450,242)	(43,637)	(42,539)
Franchise loans funded	(35,264)	(19,922)	(22,320)
Payments from franchisees	39,919	32,671	39,968
Other, net	57,041	(28,753)	11,417
Net cash used in investing activities	(470,231)	(155,131)	(112,057)
CASH FLOWS FROM FINANCING ACTIVITIES:
Repayments of line of credit borrowings	(1,335,000)	(720,000)	(830,000)
Proceeds from line of credit borrowings	3,335,000	720,000	830,000
Dividends paid	(204,870)	(205,461)	(200,469)
Repurchase of common stock, including shares surrendered	(256,214)	(189,912)	(9,147)
Proceeds from exercise of stock options	2,075	2,532	28,340
Other, net	(9,143)	(10,854)	(9,388)
Net cash provided by (used in) financing activities	1,531,848	(403,695)	(190,664)
Effects of exchange rate changes on cash	(5,285)	(3,663)	(1,143)
Net increase in cash and cash equivalents, including restricted balances	1,165,293	44,049	546,139
Cash, cash equivalents and restricted cash, beginning of the year	1,707,727	1,663,678	1,117,539
Cash, cash equivalents and restricted cash, end of the year	2,873,020	1,707,727	1,663,678
SUPPLEMENTARY CASH FLOW DATA:
Income taxes paid, net of refunds received	89,204	132,982	8,276
Interest paid on borrowings	87,426	82,442	84,320
Accrued additions to property and equipment	$ 1,185	$ 6,159	$ 3,010