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Goodwill (Tables)
9 Months Ended
Mar. 31, 2013
Goodwill [Abstract]  
Summary Of Changes In Carrying Amount Of Goodwill
Goodwill is recorded when the consideration paid for an acquisition of a business exceeds the fair value of identifiable net tangible and intangible assets. The following table summarizes the changes in goodwill since June 30, 2012:
Balance as of June 30, 2012
$
1,040,234

Acquisition of EasyLink (note 18)
188,581

Acquisition of RKT (note 18)
12,976

Adjustments on account of foreign exchange
169

Balance as of March 31, 2013
$
1,241,960