Equity (Tables)

9 Months Ended

Apr. 30, 2014

Equity [Abstract]

Summary of Changes in the Components of Equity

	Nine Months Ended April 30, 2014
	Attributable to IDT Corporation			Noncontrolling Interests			Total
	(in thousands)
Balance, July 31, 2013	$	88,603		$	533		$	89,136
Dividends declared ($0.34 per share)		(7,850	)		—			(7,850	)
Restricted Class B common stock purchased from employees		(955	)		—			(955	)
Exercise of stock options		606			3			609
Stock issued for matching contributions to the 401(k) Plan		1,168			—			1,168
Purchases of stock of subsidiary		(1,154	)		21			(1,133	)
Adjustment to liabilities in connection with the Straight Path Spin-Off		(1,624	)		—			(1,624	)
Distributions to noncontrolling interests		—			(1,287	)		(1,287	)
Stock-based compensation		4,890			30			4,920
Comprehensive income:
Net income		11,074			1,548			12,622
Foreign currency translation adjustments		1,713			—			1,713
Comprehensive income		12,787			1,548			14,335
Balance, April 30, 2014	$	96,471		$	848		$	97,319