CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Jul. 31, 2019	Jul. 31, 2018
Cash flows from operating activities:
Net income (loss)	$ 43,650	$ (38,592)
Adjustments to reconcile net income (loss) to net cash used by operating activities:
Depreciation and amortization	12,777	11,731
Stock-based compensation expense	5,462	5,714
Tradename write-offs		106,555
Provision for doubtful accounts	3,549	3,707
Gain on cash surrender value of life insurance policies	(2,338)	(1,347)
Gain on marketable securities	(1,945)	(4,001)
Deferred income taxes	1,974	(22,564)
Change in other assets and liabilities:
Deferred compensation	11,652	3,021
Receivables due from clients	(31,450)	(16,270)
Income taxes and other receivables	(3,176)	(7,811)
Prepaid expenses and other assets	(9,845)	(4,356)
Unearned compensation	(14,818)	(17,463)
Income taxes payable	(1,911)	1,434
Accounts payable and accrued liabilities	(175,709)	(135,405)
Other	209	(1,845)
Net cash used by operating activities	(161,919)	(117,492)
Cash flows from investing activities:
Purchase of property and equipment	(10,706)	(13,163)
Purchase of marketable securities	(1,600)	(1,396)
Proceeds from sales/maturities of marketable securities	1,599	8,240
Premium on company-owned life insurance policies	(341)	(398)
Proceeds from life insurance policies	1,673	85
Dividends received from unconsolidated subsidiaries	166
Net cash used in investing activities	(9,209)	(6,632)
Cash flows from financing activities:
Repurchases of common stock	(12,738)
Payments of tax withholdings on restricted stock	(8,591)	(13,054)
Proceeds from issuance of common stock upon exercise of employee stock options and in connection with an employee stock purchase plan	4,313	4,105
Payments on life insurance policy loans	(943)
Principal payments on finance leases	(432)
Dividends paid to shareholders	(6,081)	(6,027)
Principal payments on term loan		(5,156)
Payment of contingent consideration from acquisitions	(455)	(455)
Net cash used in financing activities	(24,927)	(20,587)
Effect of exchange rate changes on cash and cash equivalents	(5,668)	(10,408)
Net decrease in cash and cash equivalents	(201,723)	(155,119)
Cash and cash equivalents at beginning of period	626,360	520,848
Cash and cash equivalents at end of the period	$ 424,637	$ 365,729