Consolidated Balance Sheets - USD ($) $ in Thousands	Jul. 31, 2019	Apr. 30, 2019	Jul. 31, 2018
ASSETS
Cash and cash equivalents	$ 607,668	$ 1,572,150	$ 979,116
Cash and cash equivalents - restricted	157,786	135,577	131,376
Receivables, less allowance for doubtful accounts of $66,652, $65,445 and $67,228	76,128	138,965	70,576
Prepaid expenses and other current assets	105,123	146,667	101,055
Total current assets	946,705	1,993,359	1,282,123
Property and equipment, at cost, less accumulated depreciation and amortization of $764,891, $768,302 and $745,761	199,679	212,092	227,003
Operating lease right of use asset	486,147
Intangible assets, net	419,391	342,493	354,831
Goodwill	821,278	519,937	507,941
Deferred tax assets and income taxes receivable	142,416	141,979	131,683
Other noncurrent assets	94,384	90,085	101,457
Total assets	3,110,000	3,299,945	2,605,038
LIABILITIES:
Accounts payable and accrued expenses	122,156	249,525	145,471
Accrued salaries, wages and payroll taxes	48,166	196,527	37,468
Accrued income taxes and reserves for uncertain tax positions	182,928	271,973	178,313
Operating lease liabilities	186,355
Deferred revenue and other current liabilities	193,364	204,976	202,744
Total current liabilities	732,969	923,001	563,996
Long-term debt	1,493,289	1,492,629	1,495,006
Deferred tax liabilities and reserves for uncertain tax positions	199,714	197,906	231,292
Operating lease liabilities	292,818
Deferred revenue and other noncurrent liabilities	100,406	144,882	122,735
Total liabilities	2,819,196	2,758,418	2,413,029
COMMITMENTS AND CONTINGENCIES
STOCKHOLDERS' EQUITY:
Common stock, no par, stated value $.01 per share, 800,000,000 shares authorized, shares issued of 236,744,360, 242,026,278 and 238,336,760	2,367	2,383	2,420
Additional paid-in capital	759,449	767,636	752,109
Accumulated other comprehensive loss	(22,736)	(20,416)	(16,034)
Retained earnings	250,740	499,386	163,567
Less treasury shares, at cost, of 35,785,391, 36,517,685 and 36,377,441	(699,016)	(707,462)	(710,053)
Total stockholders' equity	290,804	541,527	192,009
Total liabilities and stockholders' equity	$ 3,110,000	$ 3,299,945	$ 2,605,038