Consolidated Balance Sheets - USD ($) $ in Thousands	Jan. 31, 2018	Apr. 30, 2017	Jan. 31, 2017
ASSETS
Cash and cash equivalents	$ 187,366	$ 1,011,331	$ 221,172
Cash and cash equivalents - restricted	83,033	106,208	70,166
Receivables, less allowance for doubtful accounts of $45,215, $47,731 and $55,296	791,618	162,775	787,865
Income taxes receivable	72,775		38,032
Prepaid expenses and other current assets	149,349	65,725	85,599
Total current assets	1,284,141	1,346,039	1,202,834
Property and equipment, at cost, less accumulated depreciation and amortization of $757,809, $673,594 and $678,161	249,911	263,827	282,358
Intangible assets, net	390,993	409,364	434,720
Goodwill	504,789	491,207	483,320
Deferred tax assets and income taxes receivable	25,305	83,728	71,639
Other noncurrent assets	106,161	99,943	102,760
Total assets	2,561,300	2,694,108	2,577,631
LIABILITIES:
Accounts payable and accrued expenses	163,653	217,028	239,085
Accrued salaries, wages and payroll taxes	135,626	183,856	123,457
Accrued income taxes and reserves for uncertain tax positions	164,246	348,199	7,537
Current portion of long-term debt	1,015	981	942
Deferred revenue and other current liabilities	201,988	189,216	183,616
Total current liabilities	666,528	939,280	554,637
Long-term debt and line of credit borrowings	2,284,231	1,493,017	2,592,622
Deferred tax liabilities and reserves for uncertain tax positions	201,384	159,085	109,557
Deferred revenue and other noncurrent liabilities	107,226	163,609	121,631
Total liabilities	3,259,369	2,754,991	3,378,447
COMMITMENTS AND CONTINGENCIES
STOCKHOLDERS' EQUITY:
Common stock, no par, stated value $.01 per share, 800,000,000 shares authorized, shares issued of 246,198,878	2,462	2,462	2,462
Additional paid-in capital	758,361	754,912	752,748
Accumulated other comprehensive loss	(9,374)	(15,299)	(15,363)
Retained deficit	(729,578)	(48,206)	(785,823)
Less treasury shares, at cost, of 37,079,700, 39,032,420 and 39,027,573	(719,940)	(754,752)	(754,840)
Total stockholders' equity (deficiency)	(698,069)	(60,883)	(800,816)
Total liabilities and stockholders' equity	$ 2,561,300	$ 2,694,108	$ 2,577,631

Sum of the carrying values as of the balance sheet date of obligations incurred through that date and due within one year (or the operating cycle, if longer), including liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received, taxes, interest, rent and utilities, accrued salaries and bonuses, payroll taxes and fringe benefits.

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- Definition

Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.