Consolidated Balance Sheets - USD ($) $ in Thousands	Apr. 30, 2017	Apr. 30, 2016
ASSETS
Cash and cash equivalents	$ 1,011,331	$ 896,801
Cash and cash equivalents - restricted	106,208	104,110
Receivables, less allowance for doubtful accounts of $55,296 and $57,011	162,775	153,116
Prepaid expenses and other current assets	65,725	66,574
Total current assets	1,346,039	1,220,601
Mortgage loans held for investment, less allowance for loan losses of $5,518	0	202,385
Property and equipment, at cost, less accumulated depreciation and amortization of $678,161 and $601,120	263,827	293,565
Intangible assets, net	409,364	433,885
Goodwill	491,207	470,757
Deferred tax assets and income taxes receivable	83,728	120,123
Other noncurrent assets	99,943	105,909
Total assets	2,694,108	2,847,225
LIABILITIES:
Accounts payable and accrued expenses	217,028	259,586
Accrued salaries, wages and payroll taxes	183,856	161,786
Accrued income taxes and reserves for uncertain tax positions	348,199	373,754
Current portion of long-term debt	981	826
Deferred revenue and other current liabilities	189,216	243,653
Total current liabilities	939,280	1,039,605
Long-term debt	1,493,017	1,491,375
Reserves for uncertain tax positions	159,085	132,960
Deferred revenue and other noncurrent liabilities	163,609	160,182
Total liabilities	2,754,991	2,824,122
STOCKHOLDERS' EQUITY:
Common stock, no par, stated value $.01 per share, 800,000,000 shares authorized, shares issued of 246,198,878 and 260,218,666	2,462	2,602
Additional paid-in capital	754,912	758,230
Accumulated other comprehensive loss	(15,299)	(11,233)
Retained earnings (deficit)	(48,206)	40,347
Less treasury shares, at cost, of 39,027,573 and 39,701,409	(754,752)	(766,843)
Total stockholders' equity (deficiency)	(60,883)	23,103
Total liabilities and stockholders' equity	$ 2,694,108	$ 2,847,225

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.