Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Apr. 30, 2013	Apr. 30, 2012
Operating activities
Net income	$ 16,787	$ 1,305
Adjustments to reconcile net income to net cash provided by operating activities:
Net income from discontinued operations		(3,015)
Depreciation and amortization	10,972	12,836
Deferred income taxes	11,788	(997)
Provision for doubtful accounts receivable	2,514	1,322
Gain on sale of rights in wireless spectrum licenses		(5,330)
Interest in the equity of investments	(1,541)	(1,029)
Stock-based compensation	5,631	2,623
Change in assets and liabilities:
Trade accounts receivable	16,873	15,605
Prepaid expenses, other current assets and other assets	5,230	2,910
Trade accounts payable, accrued expenses, other current liabilities and other liabilities	(25,602)	3,197
Customer deposits	12,977	3,640
Income taxes payable	320	(4,188)
Deferred revenue	4,599	2,089
Net cash provided by operating activities	60,548	30,968
Investing activities
Capital expenditures	(10,928)	(7,428)
Deposit on purchase of leasehold interest in building	(950)
Collection of notes receivable	750
Increase in investments	(1,219)
Proceeds from sale and redemption of investments	107	3,165
Increase in restricted cash and cash equivalents	(16,723)	(718)
Purchase of marketable securities	(14,130)
Proceeds from maturities of marketable securities	3,285
Proceeds from sale of rights in wireless spectrum licenses		6,800
Proceeds from maturities of certificates of deposit		3,540
Net cash (used in) provided by investing activities	(39,808)	5,359
Financing activities
Dividends paid	(17,124)	(11,599)
Cash of subsidiaries deconsolidated as a result of the Genie spin-off		(104,243)
Distributions to noncontrolling interests	(1,545)	(1,180)
Purchases of stock of subsidiary	(1,804)
Proceeds from sale of stock of subsidiary	145	133
Repayments of capital lease obligations		(1,781)
Repayments of borrowings	(180)	(273)
Repurchases of Class B common stock	(1,078)	(210)
Net cash used in financing activities	(21,586)	(119,153)
Discontinued operations
Net cash used in operating activities		(889)
Net cash used in investing activities		(2,048)
Net cash used in discontinued operations		(2,937)
Effect of exchange rate changes on cash and cash equivalents	1,423	(2,068)
Net increase (decrease) in cash and cash equivalents	577	(87,831)
Cash and cash equivalents at beginning of period	151,504	244,301
Cash and cash equivalents at end of period	152,081	156,470
Supplemental schedule of non-cash investing and financing activities
Escrow account overages included in other current assets used to reduce notes payable	1,340
Net assets excluding cash and cash equivalents of subsidiaries deconsolidated as a result of the Genie spin-off		$ 18,803