Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Jul. 31, 2014	Jul. 31, 2013	Jul. 31, 2012
OPERATING ACTIVITIES
Net income	$ 21,010	$ 13,444	$ 38,785
Adjustments to reconcile net income to net cash provided by operating activities:
Net loss (income) from discontinued operations		4,634	(7,851)
Depreciation and amortization	16,318	14,910	16,648
Impairment of building and improvements		4,359
Deferred income taxes	2,487	15,198	(37,925)
Provision for doubtful accounts receivable	500	2,743	2,098
Net realized gains from investments		(586)
Gain on proceeds from insurance	(571)
Interest in the equity of investments	(1,282)	(1,968)	(1,157)
Stock-based compensation	5,382	5,875	3,325
Change in assets and liabilities:
Restricted cash and cash equivalents	(25,292)	(23,006)	(7,733)
Trade accounts receivable	(1,363)	17,606	8,728
Prepaid expenses, other current assets and other assets	(4,628)	2,890	(2,100)
Trade accounts payable, accrued expenses, other current liabilities and other liabilities	(5,914)	(22,578)	10,703
Customer deposits	30,186	17,998	9,057
Income taxes payable	(29)	(576)	(4,721)
Deferred revenue	8,917	6,253	6,666
Net cash provided by operating activities	45,721	57,196	34,523
INVESTING ACTIVITIES
Capital expenditures	(17,021)	(14,537)	(10,830)
Deposit on purchase of leasehold interest in building		(950)
Collection of notes receivable, net		750
Cash used for acquisition and purchase of investments	(175)	(1,219)
Proceeds from sales and redemptions of investments	1,038	114	3,169
Purchases of other intangibles	(250)	(93)
Proceeds from sale of building	250
Proceeds from insurance	571
Purchases of marketable securities	(20,658)	(11,414)
Proceeds from maturities and sales of marketable securities	17,323	1,712
Proceeds from maturities of certificates of deposit			3,300
Net cash used in investing activities	(18,922)	(25,637)	(4,361)
FINANCING ACTIVITIES
Cash of subsidiaries deconsolidated as a result of spin-offs		(15,000)	(104,243)
Dividends paid	(13,635)	(17,123)	(15,014)
Distributions to noncontrolling interests	(1,888)	(2,245)	(1,580)
Purchases of stock of subsidiary	(1,133)	(1,804)
Proceeds from sales of stock and exercise of stock options of subsidiary		154	133
Proceeds from exercise of stock options	609	921
Repayments of capital lease obligations			(1,781)
Proceeds from revolving credit loan payable	56,000	21,062
Repayments of revolving credit loan payable and other borrowings	(64,318)	(21,304)	(332)
Repurchases of Class B common stock	(1,005)	(1,079)	(2,816)
Net cash used in financing activities	(25,370)	(36,418)	(125,633)
DISCONTINUED OPERATIONS
Net cash used in operating activities		(2,638)	(1,984)
Net cash (used in) provided by investing activities		(350)	4,992
Net cash (used in) provided by discontinued operations		(2,988)	3,008
Effect of exchange rate changes on cash and cash equivalents	794	1,241	(2,335)
Net increase (decrease) in cash and cash equivalents	2,223	(6,606)	(94,798)
Cash and cash equivalents (including discontinued operations) at beginning of year	151,600	158,206	253,004
Cash and cash equivalents (including discontinued operations) at end of year	153,823	151,600	158,206
Less cash and cash equivalents of discontinued operations at end of year			2,598
Cash and cash equivalents (excluding discontinued operations) at end of year	153,823	151,600	155,608
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION
Cash payments made for interest	743	1,286	3,621
Cash payments made for income taxes	1,115	483	1,049
SUPPLEMENTAL SCHEDULE OF NON-CASH FINANCING AND INVESTING ACTIVITIES
Adjustment to liabilities in connection with the Straight Path Spin-Off	1,624
Escrow account balances included in other current assets used to reduce notes payable		1,976
Net liabilities (assets) excluding cash and cash equivalents of subsidiaries deconsolidated as a result of spin-offs		$ 1,341	$ (18,803)