Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Apr. 30, 2021	Apr. 30, 2020	Apr. 30, 2019
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income (loss)	$ 583,791	$ (7,526)	$ 422,509
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	156,852	169,536	166,695
Provision for bad debt	73,451	76,621	70,569
Deferred taxes	(22,583)	(8,300)	1,129
Stock-based compensation	28,271	28,045	23,767
Impairment of goodwill	0	106,000	0
Changes in assets and liabilities, net of acquisitions:
Receivables	(150,933)	(66,896)	(73,648)
Prepaid expenses, other current and noncurrent assets	(49,498)	39,377	(4,503)
Accounts payable, accrued expenses, salaries, wages and payroll taxes	150,635	(124,019)	54,827
Deferred revenue, other current and noncurrent liabilities	(1,160)	(9,096)	(13,758)
Income tax receivables, accrued income taxes and income tax reserves	(138,152)	(87,423)	(36,824)
Other, net	(4,746)	(7,358)	(4,225)
Net cash provided by operating activities	625,928	108,961	606,538
CASH FLOWS FROM INVESTING ACTIVITIES:
Capital expenditures	(52,792)	(81,685)	(95,490)
Payments made for business acquisitions, net of cash acquired	(15,576)	(450,242)	(43,637)
Franchise loans funded	(26,917)	(35,264)	(19,922)
Payments from franchisees	41,215	39,919	32,671
Other, net	8,547	57,041	(28,753)
Net cash used in investing activities	(45,523)	(470,231)	(155,131)
CASH FLOWS FROM FINANCING ACTIVITIES:
Repayments of line of credit borrowings	(3,275,000)	(1,335,000)	(720,000)
Proceeds from line of credit borrowings	1,275,000	3,335,000	720,000
Repayments of long-term debt	(650,000)	0	0
Proceeds from issuance of long-term debt	647,965	0	0
Dividends paid	(195,068)	(204,870)	(205,461)
Repurchase of common stock, including shares surrendered	(191,294)	(256,214)	(189,912)
Proceeds from exercise of stock options	2,140	2,075	2,532
Other, net	(22,566)	(9,143)	(10,854)
Net cash provided by (used in) financing activities	(2,408,823)	1,531,848	(403,695)
Effects of exchange rate changes on cash	18,318	(5,285)	(3,663)
Net increase (decrease) in cash and cash equivalents, including restricted balances	(1,810,100)	1,165,293	44,049
Cash, cash equivalents and restricted cash, beginning of the year	2,873,020	1,707,727	1,663,678
Cash, cash equivalents and restricted cash, end of the year	1,062,920	2,873,020	1,707,727
SUPPLEMENTARY CASH FLOW DATA:
Income taxes paid, net of refunds received	236,459	89,204	132,982
Interest paid on borrowings	103,855	87,426	82,442
Accrued additions to property and equipment	$ 1,643	$ 1,185	$ 6,159