CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Jan. 31, 2023	Jan. 31, 2022
Cash flows from operating activities:
Net income	$ 164,920	$ 237,786
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	50,359	47,381
Stock-based compensation expense	26,910	21,975
Impairment of right-of-use assets	5,471	7,392
Impairment of fixed assets	4,375	1,915
Provision for doubtful accounts	16,725	15,029
Gain on cash surrender value of life insurance policies	(7,439)	(3,897)
Gain on marketable securities	(2,960)	(2,366)
Deferred income taxes	(9,082)	(2,704)
Change in other assets and liabilities:
Deferred compensation	42,627	32,192
Receivables due from clients	(35,739)	(155,849)
Income taxes and other receivables	(26,439)	(5,822)
Prepaid expenses and other assets	2,574	(8,662)
Unearned compensation	8,130	(32,966)
Income taxes payable	(17,492)	5,261
Accounts payable and accrued liabilities	(128,596)	70,473
Other	(1,560)	(5,661)
Net cash provided by operating activities	92,784	221,477
Cash flows from investing activities:
Cash paid for acquisitions, net of cash acquired	(99,322)	(90,860)
Purchase of property and equipment	(54,049)	(32,659)
Purchase of marketable securities	(53,530)	(69,314)
Proceeds from sales/maturities of marketable securities	53,697	66,933
Premium on company-owned life insurance policies	(14,998)	(14,290)
Proceeds from life insurance policies	2,696	3,382
Dividends received from unconsolidated subsidiaries	150	255
Net cash used in investing activities	(165,356)	(136,553)
Cash flows from financing activities:
Repurchases of common stock	(82,456)	(28,949)
Payments of tax withholdings on restricted stock	(22,136)	(18,244)
Proceeds from issuance of common stock upon exercise of employee stock options and in connection with an employee stock purchase plan	7,606	6,919
Dividends paid to shareholders	(24,940)	(20,214)
Dividends - noncontrolling interest	(4,721)	(1,307)
Payments on life insurance policy loans	(2,244)	(178)
Principal payments on finance leases	(1,228)	(860)
Net cash used in financing activities	(130,119)	(62,833)
Effect of exchange rate changes on cash and cash equivalents	(3,481)	(26,364)
Net decrease in cash and cash equivalents	(206,172)	(4,273)
Cash and cash equivalents at beginning of period	978,070	850,778
Cash and cash equivalents at end of the period	$ 771,898	$ 846,505