Consolidated Balance Sheets - USD ($) $ in Thousands	Oct. 31, 2019	Apr. 30, 2019	Oct. 31, 2018
ASSETS
Cash and cash equivalents	$ 245,312	$ 1,572,150	$ 600,799
Cash and cash equivalents - restricted	176,332	135,577	122,507
Receivables, less allowance for doubtful accounts of $65,815, $65,409 and $67,228	74,710	138,965	61,286
Prepaid expenses and other current assets	105,058	146,667	106,410
Total current assets	601,412	1,993,359	891,002
Property and equipment, at cost, less accumulated depreciation and amortization of $784,535, $787,978 and $745,761	206,216	212,092	241,772
Operating lease right of use asset	475,969
Intangible assets, net	425,377	342,493	364,524
Goodwill	815,331	519,937	507,191
Deferred tax assets and income taxes receivable	145,807	141,979	130,987
Other noncurrent assets	86,629	90,085	97,820
Total assets	2,756,741	3,299,945	2,233,296
LIABILITIES:
Accounts payable and accrued expenses	111,439	249,525	114,393
Accrued salaries, wages and payroll taxes	57,602	196,527	43,396
Accrued income taxes and reserves for uncertain tax positions	106,125	271,973	94,257
Current portion of long-term debt	648,651	0	0
Operating lease liabilities	162,897
Deferred revenue and other current liabilities	177,243	204,976	183,675
Total current liabilities	1,263,957	923,001	435,721
Long-term debt and line of credit borrowings	980,299	1,492,629	1,491,328
Deferred tax liabilities and reserves for uncertain tax positions	180,362	197,906	235,799
Operating lease liabilities	326,691
Deferred revenue and other noncurrent liabilities	81,179	144,882	101,773
Total liabilities	2,832,488	2,758,418	2,264,621
COMMITMENTS AND CONTINGENCIES
STOCKHOLDERS' EQUITY:
Common stock, no par, stated value $.01 per share, 800,000,000 shares authorized, shares issued of 231,024,069, 242,026,278 and 238,336,760	2,310	2,383	2,420
Additional paid-in capital	765,220	767,636	759,235
Accumulated other comprehensive loss	(21,817)	(20,416)	(18,880)
Retained earnings (deficit)	(122,535)	499,386	(64,291)
Less treasury shares, at cost, of 35,778,404, 36,499,002 and 36,377,441	(698,925)	(707,462)	(709,809)
Total stockholders' equity (deficiency)	(75,747)	541,527	(31,325)
Total liabilities and stockholders' equity	$ 2,756,741	$ 3,299,945	$ 2,233,296