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Intangible Assets, Net and Goodwill - Change in Carrying Amount of Goodwill (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended	6 Months Ended
	Dec. 31, 2012	Dec. 31, 2012	Dec. 31, 2011
Acquired Finite-Lived Intangible Assets [Line Items]
Goodwill, Beginning		$ 243,049
Additions
Impairment	(92,350)	(92,350)
Other		(267)
Goodwill, Ending	150,432	150,432
DMS [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Goodwill, Beginning		241,818
Additions
Impairment		(92,350)
Other		(267)
Goodwill, Ending	149,201	149,201
DSS [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Goodwill, Beginning		1,231
Additions
Impairment
Other
Goodwill, Ending	$ 1,231	$ 1,231

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Goodwill And Other Intangible Assets Acquired During Period

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Carrying amount as of the balance sheet date, which is the cumulative amount paid and (if applicable) the fair value of any noncontrolling interest in the acquiree, adjusted for any amortization recognized prior to the adoption of any changes in generally accepted accounting principles (as applicable) and for any impairment charges, in excess of the fair value of net assets acquired in one or more business combination transactions.

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The aggregate amount of goodwill acquired in the period and allocated to the reportable segment. The value is stated at fair value based on the purchase price allocation.

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Loss recognized during the period that results from the write-down of goodwill after comparing the implied fair value of reporting unit goodwill with the carrying amount of that goodwill. Goodwill is assessed at least annually for impairment.

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