CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - UNAUDITED - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Oct. 31, 2021	Oct. 31, 2020	Oct. 31, 2021	Oct. 31, 2020
Operating activities
Net income		$ 55,967	$ 68,432	$ 69,797	$ 84,766
Adjustments to reconcile net income to net cash used in operating activities:
Amortization of intangible assets		21,476	17,166	42,627	34,057
Amortization of product development assets				18,088	17,448
Depreciation and amortization of technology, property and equipment				48,406	46,432
Restructuring and related (credits) charges	[1]	(1,333)	1,920	(1,609)	4,138
Stock-based compensation expense		6,700	4,800	13,059	9,066
Employee retirement plan expense				9,892	6,498
Foreign exchange transaction losses		1,370	697	1,000	779
Gain on sale of certain assets		56	0	(3,694)	0
Other noncash charges				37,663	31,143
Net change in operating assets and liabilities				(310,851)	(310,949)
Net cash used in operating activities				(75,622)	(76,622)
Investing activities
Product development spending				(13,001)	(10,999)
Additions to technology, property and equipment				(37,676)	(36,430)
Businesses acquired in purchase transactions, net of cash acquired				(13,615)	(229)
Proceeds related to the sale of certain assets				3,375	0
Acquisitions of publication rights and other				(1,654)	(14,021)
Net cash used in investing activities				(62,571)	(61,679)
Financing activities
Repayments of long-term debt				(113,425)	(249,902)
Borrowings of long-term debt				340,901	309,492
Purchases of treasury shares				(17,367)	0
Change in book overdrafts				(19,212)	(1,165)
Cash dividends				(38,619)	(38,480)
Impact of tax withholding on stock-based compensation and other				(5,232)	(1,346)
Net cash provided by financing activities				147,046	18,599
Effects of exchange rate changes on cash, cash equivalents, and restricted cash				(1,742)	3,301
Cash reconciliation:
Cash and cash equivalents				93,795	202,464
Restricted cash included in Prepaid expenses and other current assets				564	583
Balance at beginning of period				94,359	203,047
Increase/(decrease) for the period				7,111	(116,401)
Cash and cash equivalents		100,898	86,063	100,898	86,063
Restricted cash included in Prepaid expenses and other current assets		572	583	572	583
Balance at end of period		$ 101,470	$ 86,646	101,470	86,646
Cash paid during the period for:
Interest				8,769	8,374
Income taxes, net of refunds				$ 22,019	$ 37,344

[1] See Note 9, “Restructuring and Related (Credits) Charges” for these charges by segment.