Consolidated Statements of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Apr. 30, 2012	Apr. 30, 2011	Apr. 30, 2012	Apr. 30, 2011
Revenues	$ 379,719	$ 340,188	$ 1,121,945	$ 990,822
Direct cost of revenues (exclusive of depreciation and amortization)	(319,811)	(282,598)	(945,528)	(817,736)
Gross profit	59,908	57,590	176,417	173,086
Operating expenses:
Selling, general and administrative (i)	51,254	51,068	154,589	150,558
Depreciation and amortization	4,163	5,239	12,836	16,422
Research and development	1,191	964	3,320	1,966
Severance and other charges	0	0	0	1,053
Total operating expenses	56,608	57,271	170,745	169,999
Other operating (losses) gains, net	(1,138)	0	(10,540)	7,389
Income (loss) from operations	2,162	319	(4,868)	10,476
Interest expense, net	(434)	(895)	(2,262)	(3,114)
Other (expense) income, net	(564)	233	(804)	5,147
Income (loss) from continuing operations before income taxes	1,164	(343)	(7,934)	12,509
Benefit from income taxes	2,285	5,501	6,224	10,145
Income (loss) from continuing operations	3,449	5,158	(1,710)	22,654
Discontinued operations, net of tax:
Income from discontinued operations	0	664	1,015	2,197
Income on sale of discontinued operations	0	0	2,000	0
Total discontinued operations	0	664	3,015	2,197
Net income	3,449	5,822	1,305	24,851
Net (income) loss attributable to noncontrolling interests	(460)	1,179	14	1,734
Net income attributable to IDT Corporation	2,989	7,001	1,319	26,585
Amounts attributable to IDT Corporation common stockholders:
Income (loss) from continuing operations	2,989	5,090	(2,591)	22,078
Income from discontinued operations	0	1,911	3,910	4,507
Net income attributable to IDT Corporation	2,989	7,001	1,319	26,585
Basic:
Income (loss) from continuing operations	$ 0.14	$ 0.25	$ (0.13)	$ 1.07
Income from discontinued operations	$ 0	$ 0.09	$ 0.19	$ 0.22
Net income	$ 0.14	$ 0.34	$ 0.06	$ 1.29
Weighted-average number of shares used in calculation of basic earnings per share	21,041	20,627	20,633	20,578
Diluted:
Income (loss) from continuing operations	$ 0.14	$ 0.23	$ (0.13)	$ 0.98
Income from discontinued operations	$ 0	$ 0.08	$ 0.19	$ 0.20
Net income	$ 0.14	$ 0.31	$ 0.06	$ 1.18
Weighted-average number of shares used in calculation of diluted earnings per share	22,084	22,585	20,633	22,474
Dividends declared per common share	$ 0.15	$ 0	$ 0.51	$ 0.44
(i) Stock-based compensation included in selling, general and administrative expenses	$ 1,007	$ 1,641	$ 2,623	$ 3,317