Equity (Tables)

9 Months Ended

Apr. 30, 2013

Equity [Abstract]

Summary of Changes in the components of equity

	Nine Months Ended April 30, 2013
	Attributable to IDT Corporation			Noncontrolling Interests			Total
	(in thousands)
Balance, July 31, 2012	$	102,230		$	495		$	102,725
Dividends declared ($0.75 per share)		(17,124	)		—			(17,124	)
Restricted Class B common stock purchased from employees		(300	)		—			(300	)
Repurchases of Class B common stock through repurchase program		(778	)		—			(778	)
Distributions to noncontrolling interests		—			(1,545	)		(1,545	)
Purchases of stock of subsidiary		(1,795	)		(9	)		(1,804	)
Sale of stock of subsidiary		(58	)		203			145
Stock-based compensation		5,363			268			5,631
Comprehensive income:
Net income		15,258			1,529			16,787
Foreign currency translation adjustments		1,428			(47	)		1,381
Comprehensive income		16,686			1,482			18,168
Balance, April 30, 2013	$	104,224		$	894		$	105,118